/ Internet Info 1994 March / Internet Info CD-ROM (Walnut Creek) (March 1994).iso / networking / applic / ntp / kent.shar

< prev

next >

MacOS 8.1

Win98

DOS

view JSON data

view as text

+--------+-------------------------+-------------------------+--------+--------+
|00000000| 0a 23 20 54 68 69 73 20 | 69 73 20 61 20 73 68 65 |.# This |is a she|
|00000010| 6c 6c 20 61 72 63 68 69 | 76 65 2e 20 20 52 65 6d |ll archi|ve.  Rem|
|00000020| 6f 76 65 20 61 6e 79 74 | 68 69 6e 67 20 62 65 66 |ove anyt|hing bef|
|00000030| 6f 72 65 20 74 68 69 73 | 20 6c 69 6e 65 2c 20 74 |ore this| line, t|
|00000040| 68 65 6e 0a 23 20 75 6e | 70 61 63 6b 20 69 74 20 |hen.# un|pack it |
|00000050| 62 79 20 73 61 76 69 6e | 67 20 69 74 20 69 6e 20 |by savin|g it in |
|00000060| 61 20 66 69 6c 65 20 61 | 6e 64 20 74 79 70 69 6e |a file a|nd typin|
|00000070| 67 20 22 73 68 20 66 69 | 6c 65 22 2e 20 20 28 46 |g "sh fi|le".  (F|
|00000080| 69 6c 65 73 0a 23 20 75 | 6e 70 61 63 6b 65 64 20 |iles.# u|npacked |
|00000090| 77 69 6c 6c 20 62 65 20 | 6f 77 6e 65 64 20 62 79 |will be |owned by|
|000000a0| 20 79 6f 75 20 61 6e 64 | 20 68 61 76 65 20 64 65 | you and| have de|
|000000b0| 66 61 75 6c 74 20 70 65 | 72 6d 69 73 73 69 6f 6e |fault pe|rmission|
|000000c0| 73 2e 29 0a 23 0a 23 20 | 57 72 61 70 70 65 64 20 |s.).#.# |Wrapped |
|000000d0| 62 79 20 77 75 6e 64 65 | 72 20 6f 6e 20 20 46 72 |by wunde|r on  Fr|
|000000e0| 69 20 4d 61 79 20 31 32 | 20 31 37 3a 30 39 3a 35 |i May 12| 17:09:5|
|000000f0| 31 20 50 44 54 20 31 39 | 38 39 0a 23 20 54 68 69 |1 PDT 19|89.# Thi|
|00000100| 73 20 61 72 63 68 69 76 | 65 20 63 6f 6e 74 61 69 |s archiv|e contai|
|00000110| 6e 73 3a 0a 23 20 52 45 | 41 44 4d 45 20 4d 61 6b |ns:.# RE|ADME Mak|
|00000120| 65 66 69 6c 65 20 64 65 | 6d 6f 64 65 73 2e 63 20 |efile de|modes.c |
|00000130| 64 65 73 2e 63 20 64 6f | 64 65 73 2e 63 20 66 61 |des.c do|des.c fa|
|00000140| 73 74 64 65 6d 6f 2e 63 | 20 6b 73 62 2e 63 20 73 |stdemo.c| ksb.c s|
|00000150| 65 71 5f 6e 6f 63 61 73 | 65 2e 63 20 73 6c 6f 77 |eq_nocas|e.c slow|
|00000160| 64 65 73 2e 63 20 74 62 | 6c 62 75 69 6c 64 2e 63 |des.c tb|lbuild.c|
|00000170| 20 74 6f 73 73 6b 65 79 | 2e 63 0a 0a 65 63 68 6f | tosskey|.c..echo|
|00000180| 20 78 20 2d 20 52 45 41 | 44 4d 45 0a 63 61 74 20 | x - REA|DME.cat |
|00000190| 3e 20 22 52 45 41 44 4d | 45 22 20 3c 3c 20 27 2f |> "READM|E" << '/|
|000001a0| 2f 67 6f 2e 73 79 73 69 | 6e 20 64 64 20 52 45 41 |/go.sysi|n dd REA|
|000001b0| 44 4d 45 27 0a 44 61 74 | 65 3a 20 20 20 20 20 54 |DME'.Dat|e:     T|
|000001c0| 68 75 2c 20 34 20 4d 61 | 79 20 38 39 20 31 32 3a |hu, 4 Ma|y 89 12:|
|000001d0| 31 30 3a 35 32 20 45 44 | 54 0a 46 72 6f 6d 3a 20 |10:52 ED|T.From: |
|000001e0| 20 20 20 20 53 74 65 76 | 65 20 4b 65 6e 74 20 3c |    Stev|e Kent <|
|000001f0| 6b 65 6e 74 40 62 62 6e | 2e 63 6f 6d 3e 0a 54 6f |kent@bbn|.com>.To|
|00000200| 3a 20 20 20 20 20 20 20 | 4d 69 6c 6c 73 40 75 64 |:       |Mills@ud|
|00000210| 65 6c 2e 65 64 75 0a 53 | 75 62 6a 65 63 74 3a 20 |el.edu.S|ubject: |
|00000220| 20 52 65 3a 20 20 44 45 | 53 20 72 6f 75 74 69 6e | Re:  DE|S routin|
|00000230| 65 73 0a 4d 65 73 73 61 | 67 65 2d 49 44 3a 20 20 |es.Messa|ge-ID:  |
|00000240| 3c 38 39 30 35 30 34 31 | 32 31 34 2e 61 61 30 39 |<8905041|214.aa09|
|00000250| 30 35 35 40 6c 6f 75 69 | 65 2e 75 64 65 6c 2e 65 |055@loui|e.udel.e|
|00000260| 64 75 3e 0a 0a 44 61 76 | 65 2c 0a 0a 09 50 61 72 |du>..Dav|e,...Par|
|00000270| 64 6f 6e 20 74 68 65 20 | 6c 61 74 65 6e 65 73 73 |don the |lateness|
|00000280| 2c 20 62 75 74 20 61 73 | 20 49 20 6d 65 6e 74 69 |, but as| I menti|
|00000290| 6f 6e 65 64 20 62 65 66 | 6f 72 65 20 4a 6f 68 6e |oned bef|ore John|
|000002a0| 0a 4c 69 6e 6e 20 6c 65 | 66 74 20 69 6e 20 4d 61 |.Linn le|ft in Ma|
|000002b0| 72 63 68 20 61 6e 64 20 | 69 74 27 73 20 74 61 6b |rch and |it's tak|
|000002c0| 69 6e 67 20 73 6f 6d 65 | 20 74 69 6d 65 20 74 6f |ing some| time to|
|000002d0| 20 72 65 67 72 6f 75 70 | 20 61 6e 64 0a 66 69 6e | regroup| and.fin|
|000002e0| 64 20 77 68 65 72 65 20 | 76 61 72 69 6f 75 73 20 |d where |various |
|000002f0| 74 68 69 6e 67 73 20 61 | 72 65 20 28 74 68 6f 75 |things a|re (thou|
|00000300| 67 68 20 4a 6f 68 6e 20 | 64 69 64 20 64 6f 20 61 |gh John |did do a|
|00000310| 6e 20 65 78 63 65 6c 6c | 65 6e 74 0a 6a 6f 62 20 |n excell|ent.job |
|00000320| 6f 66 20 6f 72 67 61 6e | 69 7a 69 6e 67 20 73 74 |of organ|izing st|
|00000330| 75 66 66 20 61 6e 64 20 | 6c 65 74 74 69 6e 67 20 |uff and |letting |
|00000340| 75 73 20 6b 6e 6f 77 20 | 74 68 65 20 73 74 61 74 |us know |the stat|
|00000350| 65 20 6f 66 20 74 68 65 | 0a 77 6f 72 6c 64 20 62 |e of the|.world b|
|00000360| 65 66 6f 72 65 20 68 65 | 20 6c 65 66 74 29 2e 20 |efore he| left). |
|00000370| 20 49 27 76 65 20 65 6e | 63 6c 6f 73 65 64 20 73 | I've en|closed s|
|00000380| 6f 6d 65 20 63 20 72 6f | 75 74 69 6e 65 73 20 66 |ome c ro|utines f|
|00000390| 6f 72 20 44 45 53 20 61 | 6e 64 0a 44 45 53 20 6b |or DES a|nd.DES k|
|000003a0| 65 79 20 73 63 68 65 64 | 75 6c 65 20 63 6f 6e 73 |ey sched|ule cons|
|000003b0| 74 72 75 63 74 69 6f 6e | 2e 20 20 5a 49 48 48 49 |truction|.  ZIHHI|
|000003c0| 66 20 79 6f 75 20 77 61 | 6e 74 20 74 68 65 20 66 |f you wa|nt the f|
|000003d0| 61 73 74 65 72 20 4d 43 | 36 38 4b 0a 76 65 72 73 |aster MC|68K.vers|
|000003e0| 69 6f 6e 73 20 49 20 63 | 6f 75 6c 64 20 70 72 6f |ions I c|ould pro|
|000003f0| 76 69 64 65 20 74 68 65 | 6d 20 74 6f 6f 2e 20 20 |vide the|m too.  |
|00000400| 49 20 61 6c 73 6f 20 75 | 6e 64 65 72 73 74 61 6e |I also u|nderstan|
|00000410| 64 20 74 68 61 74 20 74 | 68 65 0a 6e 65 78 74 20 |d that t|he.next |
|00000420| 42 53 44 20 72 65 6c 65 | 61 73 65 20 77 69 6c 6c |BSD rele|ase will|
|00000430| 20 63 6f 6e 74 61 69 6e | 20 63 6f 64 65 20 74 68 | contain| code th|
|00000440| 61 74 20 69 73 20 6d 75 | 63 68 20 66 61 73 74 65 |at is mu|ch faste|
|00000450| 72 20 74 68 61 6e 20 74 | 68 65 0a 63 75 72 72 65 |r than t|he.curre|
|00000460| 6e 74 20 22 63 72 79 70 | 74 22 20 61 6e 64 20 74 |nt "cryp|t" and t|
|00000470| 68 65 20 63 6f 64 65 20 | 63 6f 6e 74 61 69 6e 73 |he code |contains|
|00000480| 20 65 6c 65 6d 65 6e 74 | 73 20 6f 66 20 74 68 65 | element|s of the|
|00000490| 20 73 70 65 65 64 75 70 | 73 20 77 68 69 63 68 0a | speedup|s which.|
|000004a0| 61 72 65 20 70 72 65 73 | 65 6e 74 20 69 6e 20 74 |are pres|ent in t|
|000004b0| 68 65 73 65 20 72 6f 75 | 74 69 6e 65 73 2e 20 20 |hese rou|tines.  |
|000004c0| 4c 65 74 20 6d 65 20 6b | 6e 6f 77 20 69 66 20 79 |Let me k|now if y|
|000004d0| 6f 75 20 68 61 76 65 20 | 61 6e 79 20 70 72 6f 62 |ou have |any prob|
|000004e0| 6c 65 6d 73 0a 77 69 74 | 68 20 74 68 69 73 20 63 |lems.wit|h this c|
|000004f0| 6f 64 65 20 61 6e 64 20 | 68 6f 77 20 77 65 6c 6c |ode and |how well|
|00000500| 20 69 74 20 70 65 72 66 | 6f 72 6d 73 20 66 6f 72 | it perf|orms for|
|00000510| 20 79 6f 75 72 20 61 70 | 70 6c 69 63 61 74 69 6f | your ap|plicatio|
|00000520| 6e 2e 0a 0a 09 49 20 77 | 69 6c 6c 20 61 73 6b 20 |n....I w|ill ask |
|00000530| 74 68 65 20 50 54 46 20 | 6d 65 6d 62 65 72 73 20 |the PTF |members |
|00000540| 74 6f 20 72 65 76 69 65 | 77 20 79 6f 75 72 20 4e |to revie|w your N|
|00000550| 54 50 20 61 75 74 68 65 | 6e 74 69 63 61 74 69 6f |TP authe|nticatio|
|00000560| 6e 0a 70 61 70 65 72 20 | 64 75 72 69 6e 67 20 6f |n.paper |during o|
|00000570| 75 72 20 6e 65 78 74 20 | 6d 65 65 74 69 6e 67 2c |ur next |meeting,|
|00000580| 20 73 6f 20 49 20 63 61 | 6e 20 67 65 74 20 62 61 | so I ca|n get ba|
|00000590| 63 6b 20 74 6f 20 79 6f | 75 20 77 69 74 68 0a 63 |ck to yo|u with.c|
|000005a0| 6f 6d 6d 65 6e 74 73 20 | 62 79 20 74 68 65 20 62 |omments |by the b|
|000005b0| 65 67 69 6e 6e 69 6e 67 | 20 6f 66 20 4a 75 6e 65 |eginning| of June|
|000005c0| 20 28 69 66 20 49 20 64 | 6f 6e 27 74 20 67 65 74 | (if I d|on't get|
|000005d0| 20 74 6f 20 69 74 20 6d | 79 73 65 6c 66 0a 70 72 | to it m|yself.pr|
|000005e0| 69 6f 72 20 74 6f 20 74 | 68 65 6e 29 2e 0a 0a 53 |ior to t|hen)...S|
|000005f0| 74 65 76 65 0a 2d 2d 2d | 2d 2d 2d 2d 2d 2d 2d 2d |teve.---|--------|
|00000600| 2d 2d 2d 2d 2d 2d 2d 2d | 2d 2d 2d 2d 2d 0a 0a 44 |--------|-----..D|
|00000610| 61 74 65 3a 20 20 20 20 | 20 54 68 75 2c 20 34 20 |ate:    | Thu, 4 |
|00000620| 4d 61 79 20 38 39 20 31 | 38 3a 34 34 3a 33 32 20 |May 89 1|8:44:32 |
|00000630| 45 44 54 0a 46 72 6f 6d | 3a 20 20 20 20 20 53 74 |EDT.From|:     St|
|00000640| 65 76 65 20 4b 65 6e 74 | 20 3c 6b 65 6e 74 40 62 |eve Kent| <kent@b|
|00000650| 62 6e 2e 63 6f 6d 3e 0a | 54 6f 3a 20 20 20 20 20 |bn.com>.|To:     |
|00000660| 20 20 4d 69 6c 6c 73 40 | 75 64 65 6c 2e 65 64 75 |  Mills@|udel.edu|
|00000670| 0a 53 75 62 6a 65 63 74 | 3a 20 20 52 65 3a 20 20 |.Subject|:  Re:  |
|00000680| 44 45 53 20 72 6f 75 74 | 69 6e 65 73 0a 4d 65 73 |DES rout|ines.Mes|
|00000690| 73 61 67 65 2d 49 44 3a | 20 20 3c 38 39 30 35 30 |sage-ID:|  <89050|
|000006a0| 34 31 38 35 31 2e 61 61 | 31 37 35 31 32 40 6c 6f |41851.aa|17512@lo|
|000006b0| 75 69 65 2e 75 64 65 6c | 2e 65 64 75 3e 0a 0a 44 |uie.udel|.edu>..D|
|000006c0| 61 76 65 2c 0a 0a 09 46 | 65 6c 6c 20 66 72 65 65 |ave,...F|ell free|
|000006d0| 20 74 6f 20 69 6e 63 6c | 75 64 65 20 69 74 20 69 | to incl|ude it i|
|000006e0| 6e 20 4e 54 50 2c 20 6a | 75 73 74 20 73 6f 20 6c |n NTP, j|ust so l|
|000006f0| 6f 6e 67 20 61 73 20 74 | 68 65 20 69 6e 2d 6c 69 |ong as t|he in-li|
|00000700| 6e 65 0a 61 63 6b 6e 6f | 77 6c 65 64 67 65 6d 65 |ne.ackno|wledgeme|
|00000710| 6e 74 20 69 73 20 6d 61 | 69 6e 74 61 69 6e 65 64 |nt is ma|intained|
|00000720| 2e 20 20 0a 0a 53 74 65 | 76 65 0a 0a 50 2e 53 2e |.  ..Ste|ve..P.S.|
|00000730| 20 20 61 6e 64 20 62 65 | 20 73 75 72 65 20 74 6f |  and be| sure to|
|00000740| 20 74 65 6c 6c 20 61 6c | 6c 20 79 6f 75 72 20 66 | tell al|l your f|
|00000750| 72 69 65 6e 64 73 20 2e | 2e 2e 0a 2f 2f 67 6f 2e |riends .|...//go.|
|00000760| 73 79 73 69 6e 20 64 64 | 20 52 45 41 44 4d 45 0a |sysin dd| README.|
|00000770| 0a 65 63 68 6f 20 78 20 | 2d 20 4d 61 6b 65 66 69 |.echo x |- Makefi|
|00000780| 6c 65 0a 63 61 74 20 3e | 20 22 4d 61 6b 65 66 69 |le.cat >| "Makefi|
|00000790| 6c 65 22 20 3c 3c 20 27 | 2f 2f 67 6f 2e 73 79 73 |le" << '|//go.sys|
|000007a0| 69 6e 20 64 64 20 4d 61 | 6b 65 66 69 6c 65 27 0a |in dd Ma|kefile'.|
|000007b0| 61 6c 6c 3a 20 64 65 73 | 20 6b 73 62 20 74 62 6c |all: des| ksb tbl|
|000007c0| 62 75 69 6c 64 20 74 6f | 73 73 6b 65 79 20 64 65 |build to|sskey de|
|000007d0| 6d 6f 64 65 73 20 66 61 | 73 74 64 65 6d 6f 0a 0a |modes fa|stdemo..|
|000007e0| 6b 73 62 3a 20 6b 73 62 | 2e 6f 0a 09 24 28 43 43 |ksb: ksb|.o..$(CC|
|000007f0| 29 20 2d 6f 20 6b 73 62 | 20 6b 73 62 2e 6f 0a 0a |) -o ksb| ksb.o..|
|00000800| 74 62 6c 62 75 69 6c 64 | 3a 20 74 62 6c 62 75 69 |tblbuild|: tblbui|
|00000810| 6c 64 2e 6f 0a 09 24 28 | 43 43 29 20 2d 6f 20 74 |ld.o..$(|CC) -o t|
|00000820| 62 6c 62 75 69 6c 64 20 | 74 62 6c 62 75 69 6c 64 |blbuild |tblbuild|
|00000830| 2e 6f 0a 0a 74 6f 73 73 | 6b 65 79 3a 20 74 6f 73 |.o..toss|key: tos|
|00000840| 73 6b 65 79 2e 6f 0a 09 | 24 28 43 43 29 20 2d 6f |skey.o..|$(CC) -o|
|00000850| 20 74 6f 73 73 6b 65 79 | 20 74 6f 73 73 6b 65 79 | tosskey| tosskey|
|00000860| 2e 6f 0a 0a 64 65 6d 6f | 64 65 73 3a 20 64 65 6d |.o..demo|des: dem|
|00000870| 6f 64 65 73 2e 6f 20 73 | 65 71 5f 6e 6f 63 61 73 |odes.o s|eq_nocas|
|00000880| 65 2e 6f 0a 09 24 28 43 | 43 29 20 2d 6f 20 64 65 |e.o..$(C|C) -o de|
|00000890| 6d 6f 64 65 73 20 64 65 | 6d 6f 64 65 73 2e 6f 20 |modes de|modes.o |
|000008a0| 73 65 71 5f 6e 6f 63 61 | 73 65 2e 6f 0a 0a 66 61 |seq_noca|se.o..fa|
|000008b0| 73 74 64 65 6d 6f 3a 20 | 66 61 73 74 64 65 6d 6f |stdemo: |fastdemo|
|000008c0| 2e 6f 20 73 65 71 5f 6e | 6f 63 61 73 65 2e 6f 0a |.o seq_n|ocase.o.|
|000008d0| 09 24 28 43 43 29 20 2d | 6f 20 66 61 73 74 64 65 |.$(CC) -|o fastde|
|000008e0| 6d 6f 20 66 61 73 74 64 | 65 6d 6f 2e 6f 20 73 65 |mo fastd|emo.o se|
|000008f0| 71 5f 6e 6f 63 61 73 65 | 2e 6f 0a 0a 64 65 73 3a |q_nocase|.o..des:|
|00000900| 20 64 65 73 2e 6f 0a 09 | 24 28 43 43 29 20 2d 6f | des.o..|$(CC) -o|
|00000910| 20 64 65 73 20 64 65 73 | 2e 6f 0a 0a 63 6c 65 61 | des des|.o..clea|
|00000920| 6e 3a 0a 09 72 6d 20 2a | 2e 6f 0a 0a 73 68 61 72 |n:..rm *|.o..shar|
|00000930| 3a 0a 09 73 68 61 72 20 | 2d 76 20 52 45 41 44 4d |:..shar |-v READM|
|00000940| 45 20 4d 61 6b 65 66 69 | 6c 65 20 2a 2e 63 20 3e |E Makefi|le *.c >|
|00000950| 20 64 65 73 2d 6b 65 6e | 74 2e 73 68 61 72 0a 2f | des-ken|t.shar./|
|00000960| 2f 67 6f 2e 73 79 73 69 | 6e 20 64 64 20 4d 61 6b |/go.sysi|n dd Mak|
|00000970| 65 66 69 6c 65 0a 0a 65 | 63 68 6f 20 78 20 2d 20 |efile..e|cho x - |
|00000980| 64 65 6d 6f 64 65 73 2e | 63 0a 63 61 74 20 3e 20 |demodes.|c.cat > |
|00000990| 22 64 65 6d 6f 64 65 73 | 2e 63 22 20 3c 3c 20 27 |"demodes|.c" << '|
|000009a0| 2f 2f 67 6f 2e 73 79 73 | 69 6e 20 64 64 20 64 65 |//go.sys|in dd de|
|000009b0| 6d 6f 64 65 73 2e 63 27 | 0a 2f 2a 20 64 65 6d 6f |modes.c'|./* demo|
|000009c0| 64 65 73 2e 63 3a 20 6a | 6c 20 33 30 20 41 70 72 |des.c: j|l 30 Apr|
|000009d0| 69 6c 20 31 39 38 36 3a | 20 64 65 6d 6f 6e 73 74 |il 1986:| demonst|
|000009e0| 72 61 74 65 20 44 45 53 | 20 69 6e 20 76 61 72 69 |rate DES| in vari|
|000009f0| 6f 75 73 20 6d 6f 64 65 | 73 20 2a 2f 0a 0a 2f 2a |ous mode|s */../*|
|00000a00| 20 74 68 69 73 20 75 73 | 65 73 20 61 20 76 65 72 | this us|es a ver|
|00000a10| 73 69 6f 6e 20 6f 66 20 | 44 45 53 20 74 68 61 74 |sion of |DES that|
|00000a20| 20 69 73 20 64 72 69 76 | 65 6e 20 64 69 72 65 63 | is driv|en direc|
|00000a30| 74 6c 79 20 20 20 20 20 | 20 20 20 20 20 20 20 2a |tly     |       *|
|00000a40| 2f 0a 2f 2a 20 66 72 6f | 6d 20 74 68 65 20 4e 42 |/./* fro|m the NB|
|00000a50| 53 20 74 61 62 6c 65 73 | 20 28 69 6e 63 6c 75 64 |S tables| (includ|
|00000a60| 69 6e 67 20 45 29 20 61 | 6e 64 20 68 65 6e 63 65 |ing E) a|nd hence|
|00000a70| 20 69 73 20 72 61 74 68 | 65 72 20 73 6c 6f 77 20 | is rath|er slow |
|00000a80| 20 20 20 2a 2f 0a 2f 2a | 20 28 31 30 30 6d 73 20 |   */./*| (100ms |
|00000a90| 74 6f 20 65 6e 63 72 79 | 70 74 20 61 20 62 6c 6f |to encry|pt a blo|
|00000aa0| 63 6b 20 6f 6e 20 61 20 | 43 2f 37 30 29 2e 20 20 |ck on a |C/70).  |
|00000ab0| 20 20 20 20 20 20 20 20 | 20 20 20 20 20 20 20 20 |        |        |
|00000ac0| 20 20 20 20 20 20 20 2a | 2f 0a 2f 2a 20 69 74 20 |       *|/./* it |
|00000ad0| 69 73 20 66 61 69 72 6c | 79 20 63 6f 6d 70 61 63 |is fairl|y compac|
|00000ae0| 74 2e 20 20 20 20 20 20 | 20 20 20 20 20 20 20 20 |t.      |        |
|00000af0| 20 20 20 20 20 20 20 20 | 20 20 20 20 20 20 20 20 |        |        |
|00000b00| 20 20 20 20 20 20 20 20 | 20 20 20 2a 2f 0a 0a 2f |        |   */../|
|00000b10| 2a 20 6b 65 79 20 73 63 | 68 65 64 75 6c 65 20 63 |* key sc|hedule c|
|00000b20| 6f 64 65 20 28 66 72 6f | 6d 20 64 75 6d 62 6b 73 |ode (fro|m dumbks|
|00000b30| 62 2e 63 29 20 64 6f 65 | 73 20 6e 6f 74 20 75 73 |b.c) doe|s not us|
|00000b40| 65 20 74 68 65 20 70 63 | 32 20 6f 70 74 69 6d 69 |e the pc|2 optimi|
|00000b50| 7a 61 74 69 6f 6e 20 2a | 2f 0a 2f 2a 20 61 6e 64 |zation *|/./* and|
|00000b60| 20 6f 75 74 70 75 74 73 | 20 61 20 6b 65 79 20 73 | outputs| a key s|
|00000b70| 63 68 65 64 75 6c 65 20 | 61 73 20 61 6e 20 61 72 |chedule |as an ar|
|00000b80| 72 61 79 20 6f 66 20 6c | 6f 6e 67 73 20 20 20 20 |ray of l|ongs    |
|00000b90| 20 20 20 20 20 20 20 20 | 20 20 20 2a 2f 0a 2f 2a |        |   */./*|
|00000ba0| 20 77 68 65 72 65 20 65 | 61 63 68 20 6c 6f 6e 67 | where e|ach long|
|00000bb0| 20 63 6f 6e 74 61 69 6e | 73 20 61 20 32 34 2d 62 | contain|s a 24-b|
|00000bc0| 69 74 20 72 69 67 68 74 | 2d 6a 75 73 74 69 66 69 |it right|-justifi|
|00000bd0| 65 64 20 20 20 20 20 20 | 20 20 20 20 20 20 20 2a |ed      |       *|
|00000be0| 2f 0a 2f 2a 20 71 75 61 | 6e 74 69 74 79 2c 20 63 |/./* qua|ntity, c|
|00000bf0| 6f 6d 70 61 74 69 62 6c | 65 20 77 69 74 68 20 75 |ompatibl|e with u|
|00000c00| 6e 6f 70 74 69 6d 69 7a | 65 64 20 65 20 20 20 20 |noptimiz|ed e    |
|00000c10| 20 20 20 20 20 20 20 20 | 20 20 20 20 20 20 20 20 |        |        |
|00000c20| 20 20 20 2a 2f 0a 0a 23 | 69 66 64 65 66 20 42 42 |   */..#|ifdef BB|
|00000c30| 4e 0a 23 20 20 69 6e 63 | 6c 75 64 65 20 20 20 20 |N.#  inc|lude    |
|00000c40| 20 20 20 20 3c 73 74 79 | 6c 65 2e 68 3e 0a 23 65 |    <sty|le.h>.#e|
|00000c50| 6c 73 65 0a 23 20 20 64 | 65 66 69 6e 65 20 54 52 |lse.#  d|efine TR|
|00000c60| 55 45 20 20 31 0a 23 20 | 20 64 65 66 69 6e 65 20 |UE  1.# | define |
|00000c70| 46 41 4c 53 45 20 30 0a | 23 65 6e 64 69 66 0a 23 |FALSE 0.|#endif.#|
|00000c80| 69 6e 63 6c 75 64 65 20 | 20 20 20 20 20 20 20 3c |include |       <|
|00000c90| 73 74 64 69 6f 2e 68 3e | 0a 23 69 6e 63 6c 75 64 |stdio.h>|.#includ|
|00000ca0| 65 20 20 20 20 20 20 20 | 20 3c 63 74 79 70 65 2e |e       | <ctype.|
|00000cb0| 68 3e 0a 0c 0a 2f 2a 20 | 2d 2d 2d 20 73 6f 6d 65 |h>.../* |--- some|
|00000cc0| 20 62 69 74 20 6d 61 6e | 69 70 75 6c 61 74 69 6f | bit man|ipulatio|
|00000cd0| 6e 20 70 72 69 6d 69 74 | 69 76 65 73 20 2d 2d 2d |n primit|ives ---|
|00000ce0| 20 2a 2f 0a 0a 2f 2a 20 | 67 5f 62 69 74 20 2d 2d | */../* |g_bit --|
|00000cf0| 20 65 78 74 72 61 63 74 | 20 62 69 74 20 62 6e 75 | extract| bit bnu|
|00000d00| 6d 20 66 72 6f 6d 20 61 | 20 62 79 74 65 2e 20 0a |m from a| byte. .|
|00000d10| 20 20 20 41 73 20 70 65 | 72 20 4e 42 53 2c 20 4d |   As pe|r NBS, M|
|00000d20| 53 42 20 69 73 20 62 69 | 74 20 31 2c 20 4c 53 42 |SB is bi|t 1, LSB|
|00000d30| 20 62 69 74 20 38 20 2a | 2f 0a 69 6e 74 20 67 5f | bit 8 *|/.int g_|
|00000d40| 62 69 74 20 28 62 6e 75 | 6d 2c 20 62 79 74 65 29 |bit (bnu|m, byte)|
|00000d50| 0a 69 6e 74 20 20 20 20 | 20 20 20 20 20 20 20 20 |.int    |        |
|00000d60| 20 62 6e 75 6d 3b 0a 75 | 6e 73 69 67 6e 65 64 20 | bnum;.u|nsigned |
|00000d70| 20 20 20 20 20 20 20 62 | 79 74 65 3b 0a 7b 0a 20 |       b|yte;.{. |
|00000d80| 20 62 79 74 65 20 26 3d | 20 30 58 46 46 3b 0a 20 | byte &=| 0XFF;. |
|00000d90| 20 72 65 74 75 72 6e 20 | 28 30 31 20 26 20 28 62 | return |(01 & (b|
|00000da0| 79 74 65 20 3e 3e 20 28 | 38 20 2d 20 62 6e 75 6d |yte >> (|8 - bnum|
|00000db0| 29 29 20 29 3b 0a 7d 0a | 0a 69 6e 74 20 20 20 20 |)) );.}.|.int    |
|00000dc0| 20 67 62 5f 66 32 38 20 | 28 62 6e 75 6d 2c 20 6c | gb_f28 |(bnum, l|
|00000dd0| 76 61 6c 29 20 20 20 20 | 20 0a 2f 2a 20 67 65 74 |val)    | ./* get|
|00000de0| 20 74 68 65 20 62 6e 75 | 6d 20 62 69 74 20 66 72 | the bnu|m bit fr|
|00000df0| 6f 6d 20 32 38 2d 62 69 | 74 20 6c 76 61 6c 20 2a |om 28-bi|t lval *|
|00000e00| 2f 0a 69 6e 74 20 20 20 | 20 20 62 6e 75 6d 3b 0a |/.int   |  bnum;.|
|00000e10| 6c 6f 6e 67 20 20 20 20 | 6c 76 61 6c 3b 0a 7b 0a |long    |lval;.{.|
|00000e20| 20 20 72 65 74 75 72 6e | 20 28 30 31 20 26 20 28 |  return| (01 & (|
|00000e30| 6c 76 61 6c 20 3e 3e 20 | 28 32 38 20 2d 20 62 6e |lval >> |(28 - bn|
|00000e40| 75 6d 29 29 20 29 3b 0a | 7d 20 20 0a 0a 0c 0a 2f |um)) );.|}  ..../|
|00000e50| 2a 20 2d 2d 2d 20 66 6f | 6c 6c 6f 77 69 6e 67 20 |* --- fo|llowing |
|00000e60| 63 6f 64 65 20 61 6e 64 | 20 64 61 74 61 20 64 6f |code and| data do|
|00000e70| 65 73 20 6b 65 79 20 73 | 63 68 65 64 75 6c 65 20 |es key s|chedule |
|00000e80| 67 65 6e 65 72 61 74 69 | 6f 6e 20 2d 2d 2d 20 2a |generati|on --- *|
|00000e90| 2f 0a 23 64 65 66 69 6e | 65 20 4e 49 4e 50 43 31 |/.#defin|e NINPC1|
|00000ea0| 20 20 32 38 0a 23 64 65 | 66 69 6e 65 20 4e 49 4e |  28.#de|fine NIN|
|00000eb0| 50 43 32 20 20 34 38 0a | 23 64 65 66 69 6e 65 20 |PC2  48.|#define |
|00000ec0| 50 43 32 46 52 52 20 20 | 32 34 20 20 20 20 20 20 |PC2FRR  |24      |
|00000ed0| 2f 2a 20 6e 75 6d 62 65 | 72 20 6f 66 20 6f 75 74 |/* numbe|r of out|
|00000ee0| 70 75 74 20 62 69 74 73 | 20 66 72 6f 6d 20 43 20 |put bits| from C |
|00000ef0| 6f 72 20 44 20 2a 2f 0a | 23 64 65 66 69 6e 65 20 |or D */.|#define |
|00000f00| 53 55 43 43 45 53 53 20 | 30 20 20 20 20 20 20 20 |SUCCESS |0       |
|00000f10| 2f 2a 20 72 65 74 75 72 | 6e 20 76 61 6c 75 65 73 |/* retur|n values|
|00000f20| 20 66 72 6f 6d 20 6b 73 | 6d 61 6b 65 20 2a 2f 0a | from ks|make */.|
|00000f30| 23 64 65 66 69 6e 65 20 | 46 41 49 4c 55 52 45 20 |#define |FAILURE |
|00000f40| 31 0a 0a 69 6e 74 20 6b | 73 6d 61 6b 65 20 28 69 |1..int k|smake (i|
|00000f50| 6e 6b 65 79 2c 20 6b 73 | 29 20 20 20 20 20 20 20 |nkey, ks|)       |
|00000f60| 2f 2a 20 4d 61 6b 65 20 | 61 20 6b 65 79 20 73 63 |/* Make |a key sc|
|00000f70| 68 65 64 75 6c 65 20 66 | 72 6f 6d 20 6b 65 79 20 |hedule f|rom key |
|00000f80| 62 79 74 65 73 20 69 6e | 20 69 6e 6b 65 79 20 2a |bytes in| inkey *|
|00000f90| 2f 0a 09 09 09 20 20 20 | 20 20 2f 2a 20 72 65 73 |/....   |  /* res|
|00000fa0| 75 6c 74 20 69 73 20 53 | 55 43 43 45 53 53 20 69 |ult is S|UCCESS i|
|00000fb0| 66 20 4f 4b 2c 20 46 41 | 49 4c 55 52 45 20 6f 74 |f OK, FA|ILURE ot|
|00000fc0| 68 65 72 77 69 73 65 20 | 2a 2f 0a 75 6e 73 69 67 |herwise |*/.unsig|
|00000fd0| 6e 65 64 20 20 20 20 20 | 20 69 6e 6b 65 79 20 5b |ned     | inkey [|
|00000fe0| 38 5d 3b 0a 6c 6f 6e 67 | 20 20 20 20 20 20 20 20 |8];.long|        |
|00000ff0| 20 20 6b 73 20 5b 31 36 | 5d 20 5b 32 5d 3b 0a 7b |  ks [16|] [2];.{|
|00001000| 0a 20 20 73 74 61 74 69 | 63 20 69 6e 74 20 70 63 |.  stati|c int pc|
|00001010| 31 63 20 5b 5d 20 3d 0a | 09 7b 20 35 37 2c 20 34 |1c [] =.|.{ 57, 4|
|00001020| 39 2c 20 34 31 2c 20 33 | 33 2c 20 32 35 2c 20 31 |9, 41, 3|3, 25, 1|
|00001030| 37 2c 20 39 2c 0a 09 20 | 20 31 2c 20 35 38 2c 20 |7, 9,.. | 1, 58, |
|00001040| 35 30 2c 20 34 32 2c 20 | 33 34 2c 20 32 36 2c 20 |50, 42, |34, 26, |
|00001050| 31 38 2c 0a 09 20 20 31 | 30 2c 20 32 2c 20 35 39 |18,..  1|0, 2, 59|
|00001060| 2c 20 35 31 2c 20 34 33 | 2c 20 33 35 2c 20 32 37 |, 51, 43|, 35, 27|
|00001070| 2c 0a 09 20 20 31 39 2c | 20 31 31 2c 20 33 2c 20 |,..  19,| 11, 3, |
|00001080| 36 30 2c 20 35 32 2c 20 | 34 34 2c 20 33 36 20 7d |60, 52, |44, 36 }|
|00001090| 3b 0a 0a 20 20 73 74 61 | 74 69 63 20 69 6e 74 20 |;..  sta|tic int |
|000010a0| 70 63 31 64 20 5b 5d 20 | 3d 0a 09 7b 20 36 33 2c |pc1d [] |=..{ 63,|
|000010b0| 20 35 35 2c 20 34 37 2c | 20 33 39 2c 20 33 31 2c | 55, 47,| 39, 31,|
|000010c0| 20 32 33 2c 20 31 35 2c | 0a 09 20 20 37 2c 20 36 | 23, 15,|..  7, 6|
|000010d0| 32 2c 20 35 34 2c 20 34 | 36 2c 20 33 38 2c 20 33 |2, 54, 4|6, 38, 3|
|000010e0| 30 2c 20 32 32 2c 0a 09 | 20 20 31 34 2c 20 36 2c |0, 22,..|  14, 6,|
|000010f0| 20 36 31 2c 20 35 33 2c | 20 34 35 2c 20 33 37 2c | 61, 53,| 45, 37,|
|00001100| 20 32 39 2c 0a 09 20 20 | 32 31 2c 20 31 33 2c 20 | 29,..  |21, 13, |
|00001110| 35 2c 20 32 38 2c 20 32 | 30 2c 20 31 32 2c 20 34 |5, 28, 2|0, 12, 4|
|00001120| 20 7d 3b 0a 0a 20 20 73 | 74 61 74 69 63 20 69 6e | };..  s|tatic in|
|00001130| 74 20 73 68 69 66 74 73 | 6b 65 64 20 5b 5d 3d 0a |t shifts|ked []=.|
|00001140| 20 09 7b 20 31 2c 20 31 | 2c 20 32 2c 20 32 2c 20 | .{ 1, 1|, 2, 2, |
|00001150| 32 2c 20 32 2c 20 32 2c | 20 32 2c 0a 09 20 20 31 |2, 2, 2,| 2,..  1|
|00001160| 2c 20 32 2c 20 32 2c 20 | 32 2c 20 32 2c 20 32 2c |, 2, 2, |2, 2, 2,|
|00001170| 20 32 2c 20 31 20 7d 3b | 0a 0a 20 20 73 74 61 74 | 2, 1 };|..  stat|
|00001180| 69 63 20 69 6e 74 20 70 | 63 32 20 5b 5d 20 3d 0a |ic int p|c2 [] =.|
|00001190| 09 7b 20 31 34 2c 20 31 | 37 2c 20 31 31 2c 20 32 |.{ 14, 1|7, 11, 2|
|000011a0| 34 2c 20 31 2c 20 35 2c | 0a 09 20 20 33 2c 20 32 |4, 1, 5,|..  3, 2|
|000011b0| 38 2c 20 31 35 2c 20 36 | 2c 20 32 31 2c 20 31 30 |8, 15, 6|, 21, 10|
|000011c0| 2c 0a 09 20 20 32 33 2c | 20 31 39 2c 20 31 32 2c |,..  23,| 19, 12,|
|000011d0| 20 34 2c 20 32 36 2c 20 | 38 2c 0a 09 20 20 31 36 | 4, 26, |8,..  16|
|000011e0| 2c 20 37 2c 20 32 37 2c | 20 32 30 2c 20 31 33 2c |, 7, 27,| 20, 13,|
|000011f0| 20 32 2c 0a 09 20 20 34 | 31 2c 20 35 32 2c 20 33 | 2,..  4|1, 52, 3|
|00001200| 31 2c 20 33 37 2c 20 34 | 37 2c 20 35 35 2c 0a 09 |1, 37, 4|7, 55,..|
|00001210| 20 20 33 30 2c 20 34 30 | 2c 20 35 31 2c 20 34 35 |  30, 40|, 51, 45|
|00001220| 2c 20 33 33 2c 20 34 38 | 2c 0a 09 20 20 34 34 2c |, 33, 48|,..  44,|
|00001230| 20 34 39 2c 20 33 39 2c | 20 35 36 2c 20 33 34 2c | 49, 39,| 56, 34,|
|00001240| 20 35 33 2c 0a 09 20 20 | 34 36 2c 20 34 32 2c 20 | 53,..  |46, 42, |
|00001250| 35 30 2c 20 33 36 2c 20 | 32 39 2c 20 33 32 20 7d |50, 36, |29, 32 }|
|00001260| 3b 0a 0a 20 20 69 6e 74 | 20 20 20 69 2c 20 6a 2c |;..  int|   i, j,|
|00001270| 20 70 61 72 61 63 2c 20 | 72 6f 75 6e 64 2c 20 6e | parac, |round, n|
|00001280| 73 68 69 66 74 73 3b 0a | 20 20 6c 6f 6e 67 20 20 |shifts;.|  long  |
|00001290| 70 63 63 2c 20 70 63 64 | 3b 0a 20 20 75 6e 73 69 |pcc, pcd|;.  unsi|
|000012a0| 67 6e 65 64 20 69 6e 63 | 6f 70 79 3b 0a 0a 20 20 |gned inc|opy;..  |
|000012b0| 2f 2a 20 66 69 72 73 74 | 20 63 68 65 63 6b 20 70 |/* first| check p|
|000012c0| 61 72 69 74 79 20 2a 2f | 0a 20 20 66 6f 72 20 28 |arity */|.  for (|
|000012d0| 69 20 3d 20 30 3b 20 69 | 20 3c 20 38 3b 20 69 2b |i = 0; i| < 8; i+|
|000012e0| 2b 29 20 20 20 20 20 20 | 20 2f 2a 20 64 6f 20 65 |+)      | /* do e|
|000012f0| 61 63 68 20 62 79 74 65 | 20 2a 2f 0a 20 20 7b 0a |ach byte| */.  {.|
|00001300| 20 20 20 20 70 61 72 61 | 63 20 3d 20 30 3b 0a 20 |    para|c = 0;. |
|00001310| 20 20 20 69 6e 63 6f 70 | 79 20 3d 20 69 6e 6b 65 |   incop|y = inke|
|00001320| 79 20 5b 69 5d 3b 0a 0a | 20 20 20 20 66 6f 72 20 |y [i];..|    for |
|00001330| 28 6a 20 3d 20 30 3b 20 | 6a 20 3c 20 38 3b 20 6a |(j = 0; |j < 8; j|
|00001340| 2b 2b 29 20 20 20 20 20 | 2f 2a 20 38 20 62 69 74 |++)     |/* 8 bit|
|00001350| 73 20 69 6e 20 61 20 44 | 45 53 20 62 79 74 65 20 |s in a D|ES byte |
|00001360| 2a 2f 0a 20 20 20 20 7b | 0a 20 20 20 20 20 20 69 |*/.    {|.      i|
|00001370| 66 20 28 69 6e 63 6f 70 | 79 20 26 20 30 31 29 20 |f (incop|y & 01) |
|00001380| 70 61 72 61 63 2b 2b 3b | 0a 20 20 20 20 20 20 69 |parac++;|.      i|
|00001390| 6e 63 6f 70 79 20 3e 3e | 3d 20 31 3b 0a 20 20 20 |ncopy >>|= 1;.   |
|000013a0| 20 7d 0a 20 20 20 20 69 | 66 20 28 21 20 28 70 61 | }.    i|f (! (pa|
|000013b0| 72 61 63 20 26 20 30 31 | 29 29 20 72 65 74 75 72 |rac & 01|)) retur|
|000013c0| 6e 20 28 46 41 49 4c 55 | 52 45 29 3b 20 2f 2a 20 |n (FAILU|RE); /* |
|000013d0| 6e 6f 20 6f 64 64 20 70 | 61 72 69 74 79 20 6f 6e |no odd p|arity on|
|000013e0| 20 74 68 69 73 20 62 79 | 74 65 20 2a 2f 0a 20 20 | this by|te */.  |
|000013f0| 7d 0a 0a 20 20 2f 2a 20 | 6e 6f 77 20 64 6f 20 70 |}..  /* |now do p|
|00001400| 63 31 20 70 65 72 6d 75 | 74 61 74 69 6f 6e 20 2a |c1 permu|tation *|
|00001410| 2f 0a 20 20 70 63 63 20 | 3d 20 70 63 64 20 3d 20 |/.  pcc |= pcd = |
|00001420| 30 4c 3b 0a 20 20 66 6f | 72 20 28 69 20 3d 20 30 |0L;.  fo|r (i = 0|
|00001430| 3b 20 69 20 3c 20 4e 49 | 4e 50 43 31 3b 20 69 2b |; i < NI|NPC1; i+|
|00001440| 2b 29 20 20 20 2f 2a 20 | 66 69 6c 6c 69 6e 67 20 |+)   /* |filling |
|00001450| 61 6c 6c 20 61 70 70 72 | 6f 70 72 69 61 74 65 20 |all appr|opriate |
|00001460| 62 69 74 73 20 2a 2f 0a | 20 20 7b 0a 20 20 20 20 |bits */.|  {.    |
|00001470| 70 63 63 20 7c 3d 20 28 | 30 31 20 26 20 67 5f 62 |pcc |= (|01 & g_b|
|00001480| 69 74 20 28 70 63 31 63 | 20 5b 69 5d 20 25 20 38 |it (pc1c| [i] % 8|
|00001490| 2c 20 28 75 6e 73 69 67 | 6e 65 64 29 20 28 69 6e |, (unsig|ned) (in|
|000014a0| 6b 65 79 20 5b 70 63 31 | 63 20 5b 69 5d 20 2f 20 |key [pc1|c [i] / |
|000014b0| 38 5d 29 29 29 3b 0a 20 | 20 20 20 70 63 64 20 7c |8])));. |   pcd ||
|000014c0| 3d 20 28 30 31 20 26 20 | 67 5f 62 69 74 20 28 70 |= (01 & |g_bit (p|
|000014d0| 63 31 64 20 5b 69 5d 20 | 25 20 38 2c 20 28 75 6e |c1d [i] |% 8, (un|
|000014e0| 73 69 67 6e 65 64 29 20 | 28 69 6e 6b 65 79 20 5b |signed) |(inkey [|
|000014f0| 70 63 31 64 20 5b 69 5d | 20 2f 20 38 5d 29 29 29 |pc1d [i]| / 8])))|
|00001500| 3b 0a 20 20 20 20 69 66 | 20 28 69 20 21 3d 20 28 |;.    if| (i != (|
|00001510| 4e 49 4e 50 43 31 20 2d | 20 31 29 29 20 20 20 20 |NINPC1 -| 1))    |
|00001520| 20 20 20 2f 2a 20 61 76 | 6f 69 64 20 73 75 70 65 |   /* av|oid supe|
|00001530| 72 66 6c 75 6f 75 73 20 | 66 69 6e 61 6c 20 73 68 |rfluous |final sh|
|00001540| 69 66 74 20 2a 2f 0a 20 | 20 20 20 7b 0a 20 20 20 |ift */. |   {.   |
|00001550| 20 20 20 70 63 63 20 3c | 3c 3d 20 31 3b 0a 20 20 |   pcc <|<= 1;.  |
|00001560| 20 20 20 20 70 63 64 20 | 3c 3c 3d 20 31 3b 0a 20 |    pcd |<<= 1;. |
|00001570| 20 20 20 7d 0a 20 20 7d | 0a 0a 20 20 66 6f 72 20 |   }.  }|..  for |
|00001580| 28 72 6f 75 6e 64 20 3d | 20 30 3b 20 72 6f 75 6e |(round =| 0; roun|
|00001590| 64 20 3c 20 31 36 3b 20 | 72 6f 75 6e 64 2b 2b 29 |d < 16; |round++)|
|000015a0| 0a 20 20 7b 0a 20 20 20 | 20 66 6f 72 20 28 6e 73 |.  {.   | for (ns|
|000015b0| 68 69 66 74 73 20 3d 20 | 30 3b 20 6e 73 68 69 66 |hifts = |0; nshif|
|000015c0| 74 73 20 3c 20 73 68 69 | 66 74 73 6b 65 64 20 5b |ts < shi|ftsked [|
|000015d0| 72 6f 75 6e 64 5d 3b 20 | 6e 73 68 69 66 74 73 2b |round]; |nshifts+|
|000015e0| 2b 29 0a 20 20 20 20 7b | 0a 20 20 20 20 20 20 2f |+).    {|.      /|
|000015f0| 2a 20 64 6f 20 61 70 70 | 72 6f 70 72 69 61 74 65 |* do app|ropriate|
|00001600| 20 6e 75 6d 62 65 72 20 | 6f 66 20 32 38 2d 62 69 | number |of 28-bi|
|00001610| 74 20 6c 65 66 74 20 72 | 6f 74 61 74 65 73 20 6f |t left r|otates o|
|00001620| 6e 20 70 63 63 2c 20 70 | 63 64 20 2a 2f 0a 20 20 |n pcc, p|cd */.  |
|00001630| 20 20 20 20 70 63 63 20 | 3c 3c 3d 20 31 3b 0a 20 |    pcc |<<= 1;. |
|00001640| 20 20 20 20 20 69 66 20 | 28 30 58 31 30 30 30 30 |     if |(0X10000|
|00001650| 30 30 30 4c 20 26 20 70 | 63 63 29 20 70 63 63 2b |000L & p|cc) pcc+|
|00001660| 2b 3b 0a 20 20 20 20 20 | 20 70 63 63 20 26 3d 20 |+;.     | pcc &= |
|00001670| 30 58 46 46 46 46 46 46 | 46 4c 3b 0a 20 20 20 20 |0XFFFFFF|FL;.    |
|00001680| 20 20 70 63 64 20 3c 3c | 3d 20 31 3b 0a 20 20 20 |  pcd <<|= 1;.   |
|00001690| 20 20 20 69 66 20 28 30 | 58 31 30 30 30 30 30 30 |   if (0|X1000000|
|000016a0| 30 4c 20 26 20 70 63 64 | 29 20 70 63 64 2b 2b 3b |0L & pcd|) pcd++;|
|000016b0| 0a 20 20 20 20 20 20 70 | 63 64 20 26 3d 20 30 58 |.      p|cd &= 0X|
|000016c0| 46 46 46 46 46 46 46 4c | 3b 0a 20 20 20 20 7d 0a |FFFFFFFL|;.    }.|
|000016d0| 0a 20 20 20 20 2f 2a 20 | 4e 6f 77 2c 20 70 63 63 |.    /* |Now, pcc|
|000016e0| 20 61 6e 64 20 70 63 64 | 20 68 61 76 65 20 74 68 | and pcd| have th|
|000016f0| 65 20 76 61 6c 75 65 73 | 20 6f 6e 20 77 68 69 63 |e values| on whic|
|00001700| 68 20 77 65 20 63 61 6e | 20 61 70 70 6c 79 0a 20 |h we can| apply. |
|00001710| 20 20 20 20 20 20 70 63 | 32 20 61 6e 64 20 73 65 |      pc|2 and se|
|00001720| 6c 65 63 74 20 74 68 65 | 20 6b 65 79 20 62 69 74 |lect the| key bit|
|00001730| 73 2c 20 73 74 6f 72 69 | 6e 67 20 74 68 65 6d 20 |s, stori|ng them |
|00001740| 69 6e 20 6b 73 5b 30 5d | 20 61 6e 64 0a 20 20 20 |in ks[0]| and.   |
|00001750| 20 20 20 20 6b 73 5b 31 | 5d 2e 20 54 68 65 20 68 |    ks[1|]. The h|
|00001760| 69 67 68 20 6f 72 64 65 | 72 20 5b 6b 73 5b 30 5d |igh orde|r [ks[0]|
|00001770| 5d 20 62 69 74 73 20 61 | 6c 6c 20 63 6f 6d 65 20 |] bits a|ll come |
|00001780| 66 72 6f 6d 0a 20 20 20 | 20 20 20 20 70 63 63 2c |from.   |    pcc,|
|00001790| 20 61 6e 64 20 74 68 65 | 20 6c 6f 77 20 6f 72 64 | and the| low ord|
|000017a0| 65 72 20 66 72 6f 6d 20 | 70 63 64 2e 20 2a 2f 0a |er from |pcd. */.|
|000017b0| 0a 20 20 20 20 6b 73 20 | 5b 72 6f 75 6e 64 5d 20 |.    ks |[round] |
|000017c0| 5b 30 5d 20 3d 20 6b 73 | 20 5b 72 6f 75 6e 64 5d |[0] = ks| [round]|
|000017d0| 20 5b 31 5d 20 3d 20 30 | 3b 0a 20 20 20 20 66 6f | [1] = 0|;.    fo|
|000017e0| 72 20 28 69 20 3d 20 30 | 3b 20 69 20 3c 20 50 43 |r (i = 0|; i < PC|
|000017f0| 32 46 52 52 3b 20 69 2b | 2b 29 0a 20 20 20 20 7b |2FRR; i+|+).    {|
|00001800| 0a 20 20 20 20 20 20 6b | 73 20 5b 72 6f 75 6e 64 |.      k|s [round|
|00001810| 5d 20 5b 30 5d 20 7c 3d | 20 67 62 5f 66 32 38 20 |] [0] |=| gb_f28 |
|00001820| 28 70 63 32 20 5b 69 5d | 2c 20 70 63 63 29 3b 0a |(pc2 [i]|, pcc);.|
|00001830| 20 20 20 20 20 20 69 66 | 20 28 69 20 21 3d 20 28 |      if| (i != (|
|00001840| 50 43 32 46 52 52 20 2d | 20 31 29 29 20 6b 73 20 |PC2FRR -| 1)) ks |
|00001850| 5b 72 6f 75 6e 64 5d 20 | 5b 30 5d 20 3c 3c 3d 20 |[round] |[0] <<= |
|00001860| 31 3b 0a 20 20 20 20 7d | 0a 20 20 20 20 66 6f 72 |1;.    }|.    for|
|00001870| 20 28 69 20 3d 20 50 43 | 32 46 52 52 3b 20 69 20 | (i = PC|2FRR; i |
|00001880| 3c 20 4e 49 4e 50 43 32 | 3b 20 69 2b 2b 29 0a 20 |< NINPC2|; i++). |
|00001890| 20 20 20 7b 0a 20 20 20 | 20 20 20 6b 73 20 5b 72 |   {.   |   ks [r|
|000018a0| 6f 75 6e 64 5d 20 5b 31 | 5d 20 7c 3d 20 67 62 5f |ound] [1|] |= gb_|
|000018b0| 66 32 38 20 28 70 63 32 | 20 5b 69 5d 20 2d 20 4e |f28 (pc2| [i] - N|
|000018c0| 49 4e 50 43 31 2c 20 70 | 63 64 29 3b 0a 20 20 20 |INPC1, p|cd);.   |
|000018d0| 20 20 20 69 66 20 28 69 | 20 21 3d 20 28 4e 49 4e |   if (i| != (NIN|
|000018e0| 50 43 32 20 2d 20 31 29 | 29 20 6b 73 20 5b 72 6f |PC2 - 1)|) ks [ro|
|000018f0| 75 6e 64 5d 20 5b 31 5d | 20 3c 3c 3d 20 31 3b 0a |und] [1]| <<= 1;.|
|00001900| 20 20 20 20 7d 0a 20 20 | 7d 0a 20 20 72 65 74 75 |    }.  |}.  retu|
|00001910| 72 6e 20 28 53 55 43 43 | 45 53 53 29 3b 0a 7d 0a |rn (SUCC|ESS);.}.|
|00001920| 0c 0a 23 64 65 66 69 6e | 65 20 49 50 20 20 20 20 |..#defin|e IP    |
|00001930| 20 20 31 20 20 20 20 20 | 20 20 2f 2a 20 66 6c 61 |  1     |  /* fla|
|00001940| 67 20 74 6f 20 73 65 6c | 65 63 74 20 49 50 20 2a |g to sel|ect IP *|
|00001950| 2f 0a 23 64 65 66 69 6e | 65 20 49 50 49 20 20 20 |/.#defin|e IPI   |
|00001960| 20 20 49 50 2b 31 20 20 | 20 20 2f 2a 20 66 6c 61 |  IP+1  |  /* fla|
|00001970| 67 20 74 6f 20 73 65 6c | 65 63 74 20 49 50 49 20 |g to sel|ect IPI |
|00001980| 2a 2f 0a 23 64 65 66 69 | 6e 65 20 45 4e 43 52 59 |*/.#defi|ne ENCRY|
|00001990| 50 54 20 49 50 49 2b 31 | 20 20 20 2f 2a 20 66 6c |PT IPI+1|   /* fl|
|000019a0| 61 67 20 74 6f 20 73 65 | 6c 65 63 74 20 65 6e 63 |ag to se|lect enc|
|000019b0| 72 79 70 74 69 6f 6e 20 | 2a 2f 0a 23 64 65 66 69 |ryption |*/.#defi|
|000019c0| 6e 65 20 44 45 43 52 59 | 50 54 20 45 4e 43 52 59 |ne DECRY|PT ENCRY|
|000019d0| 50 54 2b 31 20 20 20 20 | 20 20 20 2f 2a 20 66 6c |PT+1    |   /* fl|
|000019e0| 61 67 20 74 6f 20 73 65 | 6c 65 63 74 20 64 65 63 |ag to se|lect dec|
|000019f0| 72 79 70 74 69 6f 6e 20 | 2a 2f 0a 0a 2f 2a 20 64 |ryption |*/../* d|
|00001a00| 6f 70 20 2d 2d 20 70 65 | 72 6d 75 74 65 20 36 34 |op -- pe|rmute 64|
|00001a10| 20 62 69 74 73 20 76 69 | 61 20 63 68 6f 69 63 65 | bits vi|a choice|
|00001a20| 20 6f 66 20 49 50 20 6f | 72 20 49 50 49 20 2a 2f | of IP o|r IPI */|
|00001a30| 0a 64 6f 70 20 28 69 6e | 61 72 2c 20 6f 75 74 61 |.dop (in|ar, outa|
|00001a40| 72 2c 20 66 6c 61 67 29 | 0a 6c 6f 6e 67 20 20 20 |r, flag)|.long   |
|00001a50| 20 69 6e 61 72 20 5b 32 | 5d 3b 0a 6c 6f 6e 67 20 | inar [2|];.long |
|00001a60| 20 20 20 6f 75 74 61 72 | 20 5b 32 5d 3b 0a 69 6e |   outar| [2];.in|
|00001a70| 74 20 20 20 20 20 66 6c | 61 67 3b 0a 7b 0a 20 20 |t     fl|ag;.{.  |
|00001a80| 73 74 61 74 69 63 20 69 | 6e 74 20 69 70 20 5b 36 |static i|nt ip [6|
|00001a90| 34 5d 20 3d 0a 09 7b 20 | 35 38 2c 20 35 30 2c 20 |4] =..{ |58, 50, |
|00001aa0| 34 32 2c 20 33 34 2c 20 | 32 36 2c 20 31 38 2c 20 |42, 34, |26, 18, |
|00001ab0| 31 30 2c 20 32 2c 0a 09 | 20 20 36 30 2c 20 35 32 |10, 2,..|  60, 52|
|00001ac0| 2c 20 34 34 2c 20 33 36 | 2c 20 32 38 2c 20 32 30 |, 44, 36|, 28, 20|
|00001ad0| 2c 20 31 32 2c 20 34 2c | 0a 09 20 20 36 32 2c 20 |, 12, 4,|..  62, |
|00001ae0| 35 34 2c 20 34 36 2c 20 | 33 38 2c 20 33 30 2c 20 |54, 46, |38, 30, |
|00001af0| 32 32 2c 20 31 34 2c 20 | 36 2c 0a 09 20 20 36 34 |22, 14, |6,..  64|
|00001b00| 2c 20 35 36 2c 20 34 38 | 2c 20 34 30 2c 20 33 32 |, 56, 48|, 40, 32|
|00001b10| 2c 20 32 34 2c 20 31 36 | 2c 20 38 2c 0a 09 20 20 |, 24, 16|, 8,..  |
|00001b20| 35 37 2c 20 34 39 2c 20 | 34 31 2c 20 33 33 2c 20 |57, 49, |41, 33, |
|00001b30| 32 35 2c 20 31 37 2c 20 | 39 2c 20 31 2c 0a 09 20 |25, 17, |9, 1,.. |
|00001b40| 20 35 39 2c 20 35 31 2c | 20 34 33 2c 20 33 35 2c | 59, 51,| 43, 35,|
|00001b50| 20 32 37 2c 20 31 39 2c | 20 31 31 2c 20 33 2c 0a | 27, 19,| 11, 3,.|
|00001b60| 09 20 20 36 31 2c 20 35 | 33 2c 20 34 35 2c 20 33 |.  61, 5|3, 45, 3|
|00001b70| 37 2c 20 32 39 2c 20 32 | 31 2c 20 31 33 2c 20 35 |7, 29, 2|1, 13, 5|
|00001b80| 2c 0a 09 20 20 36 33 2c | 20 35 35 2c 20 34 37 2c |,..  63,| 55, 47,|
|00001b90| 20 33 39 2c 20 33 31 2c | 20 32 33 2c 20 31 35 2c | 39, 31,| 23, 15,|
|00001ba0| 20 37 7d 3b 0a 0a 20 20 | 73 74 61 74 69 63 20 69 | 7};..  |static i|
|00001bb0| 6e 74 20 69 70 69 20 5b | 36 34 5d 20 3d 0a 09 7b |nt ipi [|64] =..{|
|00001bc0| 20 34 30 2c 20 38 2c 20 | 34 38 2c 20 31 36 2c 20 | 40, 8, |48, 16, |
|00001bd0| 35 36 2c 20 32 34 2c 20 | 36 34 2c 20 33 32 2c 20 |56, 24, |64, 32, |
|00001be0| 0a 09 20 20 33 39 2c 20 | 37 2c 20 34 37 2c 20 31 |..  39, |7, 47, 1|
|00001bf0| 35 2c 20 35 35 2c 20 32 | 33 2c 20 36 33 2c 20 33 |5, 55, 2|3, 63, 3|
|00001c00| 31 2c 0a 09 20 20 33 38 | 2c 20 36 2c 20 34 36 2c |1,..  38|, 6, 46,|
|00001c10| 20 31 34 2c 20 35 34 2c | 20 32 32 2c 20 36 32 2c | 14, 54,| 22, 62,|
|00001c20| 20 33 30 2c 0a 09 20 20 | 33 37 2c 20 35 2c 20 34 | 30,..  |37, 5, 4|
|00001c30| 35 2c 20 31 33 2c 20 35 | 33 2c 20 32 31 2c 20 36 |5, 13, 5|3, 21, 6|
|00001c40| 31 2c 20 32 39 2c 0a 09 | 20 20 33 36 2c 20 34 2c |1, 29,..|  36, 4,|
|00001c50| 20 34 34 2c 20 31 32 2c | 20 35 32 2c 20 32 30 2c | 44, 12,| 52, 20,|
|00001c60| 20 36 30 2c 20 32 38 2c | 0a 09 20 20 33 35 2c 20 | 60, 28,|..  35, |
|00001c70| 33 2c 20 34 33 2c 20 31 | 31 2c 20 35 31 2c 20 31 |3, 43, 1|1, 51, 1|
|00001c80| 39 2c 20 35 39 2c 20 32 | 37 2c 0a 09 20 20 33 34 |9, 59, 2|7,..  34|
|00001c90| 2c 20 32 2c 20 34 32 2c | 20 31 30 2c 20 35 30 2c |, 2, 42,| 10, 50,|
|00001ca0| 20 31 38 2c 20 35 38 2c | 20 32 36 2c 0a 09 20 20 | 18, 58,| 26,..  |
|00001cb0| 33 33 2c 20 31 2c 20 34 | 31 2c 20 39 2c 20 34 39 |33, 1, 4|1, 9, 49|
|00001cc0| 2c 20 31 37 2c 20 35 37 | 2c 20 32 35 7d 3b 0a 0a |, 17, 57|, 25};..|
|00001cd0| 20 20 69 6e 74 20 69 3b | 0a 0a 20 20 6f 75 74 61 |  int i;|..  outa|
|00001ce0| 72 20 5b 30 5d 20 3d 20 | 6f 75 74 61 72 20 5b 31 |r [0] = |outar [1|
|00001cf0| 5d 20 3d 20 30 4c 3b 0a | 20 20 66 6f 72 20 28 69 |] = 0L;.|  for (i|
|00001d00| 20 3d 20 31 3b 20 69 20 | 3c 20 33 33 3b 20 69 2b | = 1; i |< 33; i+|
|00001d10| 2b 29 0a 20 20 7b 20 20 | 20 0a 20 20 20 20 6f 75 |+).  {  | .    ou|
|00001d20| 74 61 72 20 5b 30 5d 20 | 7c 3d 20 30 31 20 26 20 |tar [0] ||= 01 & |
|00001d30| 28 28 28 28 66 6c 61 67 | 20 3d 3d 20 49 50 29 20 |((((flag| == IP) |
|00001d40| 3f 20 69 70 5b 69 2d 31 | 5d 20 3a 20 69 70 69 5b |? ip[i-1|] : ipi[|
|00001d50| 69 2d 31 5d 29 20 3c 20 | 33 33 29 20 3f 20 0a 20 |i-1]) < |33) ? . |
|00001d60| 20 20 20 20 28 69 6e 61 | 72 20 5b 30 5d 20 3e 3e |    (ina|r [0] >>|
|00001d70| 20 28 33 32 20 2d 20 28 | 28 66 6c 61 67 20 3d 3d | (32 - (|(flag ==|
|00001d80| 20 49 50 29 20 3f 20 69 | 70 5b 69 2d 31 5d 20 3a | IP) ? i|p[i-1] :|
|00001d90| 20 69 70 69 5b 69 2d 31 | 5d 29 29 29 20 3a 20 0a | ipi[i-1|]))) : .|
|00001da0| 20 20 20 20 20 28 69 6e | 61 72 20 5b 31 5d 20 3e |     (in|ar [1] >|
|00001db0| 3e 20 28 36 34 20 2d 20 | 28 28 66 6c 61 67 20 3d |> (64 - |((flag =|
|00001dc0| 3d 20 49 50 29 20 3f 20 | 69 70 5b 69 2d 31 5d 20 |= IP) ? |ip[i-1] |
|00001dd0| 3a 20 69 70 69 5b 69 2d | 31 5d 29 29 29 20 29 3b |: ipi[i-|1]))) );|
|00001de0| 0a 20 20 20 20 69 66 20 | 28 69 20 21 3d 20 33 32 |.    if |(i != 32|
|00001df0| 29 20 6f 75 74 61 72 20 | 5b 30 5d 20 3c 3c 3d 20 |) outar |[0] <<= |
|00001e00| 31 3b 0a 20 20 7d 0a 20 | 20 66 6f 72 20 28 69 20 |1;.  }. | for (i |
|00001e10| 3d 20 33 33 3b 20 69 20 | 3c 20 36 35 3b 20 69 2b |= 33; i |< 65; i+|
|00001e20| 2b 29 0a 20 20 7b 20 20 | 20 0a 20 20 20 20 6f 75 |+).  {  | .    ou|
|00001e30| 74 61 72 20 5b 31 5d 20 | 7c 3d 20 30 31 20 26 20 |tar [1] ||= 01 & |
|00001e40| 28 28 28 28 66 6c 61 67 | 20 3d 3d 20 49 50 29 20 |((((flag| == IP) |
|00001e50| 3f 20 69 70 5b 69 2d 31 | 5d 20 3a 20 69 70 69 5b |? ip[i-1|] : ipi[|
|00001e60| 69 2d 31 5d 29 20 3c 20 | 33 33 29 20 3f 20 0a 20 |i-1]) < |33) ? . |
|00001e70| 20 20 20 20 28 69 6e 61 | 72 20 5b 30 5d 20 3e 3e |    (ina|r [0] >>|
|00001e80| 20 28 33 32 20 2d 20 28 | 28 66 6c 61 67 20 3d 3d | (32 - (|(flag ==|
|00001e90| 20 49 50 29 20 3f 20 69 | 70 5b 69 2d 31 5d 20 3a | IP) ? i|p[i-1] :|
|00001ea0| 20 69 70 69 5b 69 2d 31 | 5d 29 29 29 20 3a 20 0a | ipi[i-1|]))) : .|
|00001eb0| 20 20 20 20 20 28 69 6e | 61 72 20 5b 31 5d 20 3e |     (in|ar [1] >|
|00001ec0| 3e 20 28 36 34 20 2d 20 | 28 28 66 6c 61 67 20 3d |> (64 - |((flag =|
|00001ed0| 3d 20 49 50 29 20 3f 20 | 69 70 5b 69 2d 31 5d 20 |= IP) ? |ip[i-1] |
|00001ee0| 3a 20 69 70 69 5b 69 2d | 31 5d 29 29 29 20 29 3b |: ipi[i-|1]))) );|
|00001ef0| 0a 20 20 20 20 69 66 20 | 28 69 20 21 3d 20 36 34 |.    if |(i != 64|
|00001f00| 29 20 6f 75 74 61 72 20 | 5b 31 5d 20 3c 3c 3d 20 |) outar |[1] <<= |
|00001f10| 31 3b 0a 20 20 7d 0a 7d | 0a 0c 0a 2f 2a 20 64 6f |1;.  }.}|.../* do|
|00001f20| 64 65 73 20 2d 2d 20 65 | 6e 63 72 79 70 74 20 6f |des -- e|ncrypt o|
|00001f30| 72 20 64 65 63 72 79 70 | 74 20 61 20 62 6c 6f 63 |r decryp|t a bloc|
|00001f40| 6b 20 75 6e 64 65 72 20 | 6b 65 79 20 73 63 68 65 |k under |key sche|
|00001f50| 64 20 69 6e 20 6b 73 20 | 2a 2f 0a 64 6f 64 65 73 |d in ks |*/.dodes|
|00001f60| 20 28 69 6e 61 72 2c 20 | 6f 75 74 61 72 2c 20 66 | (inar, |outar, f|
|00001f70| 6c 61 67 2c 20 6b 73 29 | 0a 6c 6f 6e 67 20 20 20 |lag, ks)|.long   |
|00001f80| 20 69 6e 61 72 20 5b 32 | 5d 3b 0a 6c 6f 6e 67 20 | inar [2|];.long |
|00001f90| 20 20 20 6f 75 74 61 72 | 20 5b 32 5d 3b 0a 69 6e |   outar| [2];.in|
|00001fa0| 74 20 20 20 20 20 66 6c | 61 67 3b 0a 6c 6f 6e 67 |t     fl|ag;.long|
|00001fb0| 20 20 20 20 6b 73 20 5b | 31 36 5d 20 5b 32 5d 3b |    ks [|16] [2];|
|00001fc0| 0a 7b 0a 2f 2a 20 74 61 | 62 6c 65 73 20 74 6f 20 |.{./* ta|bles to |
|00001fd0| 64 65 66 69 6e 65 20 53 | 20 62 6f 78 65 73 20 61 |define S| boxes a|
|00001fe0| 6e 64 20 50 2c 20 70 65 | 72 20 4e 42 53 20 2a 2f |nd P, pe|r NBS */|
|00001ff0| 0a 0a 20 20 73 74 61 74 | 69 63 20 69 6e 74 20 73 |..  stat|ic int s|
|00002000| 5f 74 61 62 6c 65 20 5b | 38 5d 20 5b 34 5d 20 5b |_table [|8] [4] [|
|00002010| 31 36 5d 20 3d 0a 09 7b | 20 31 34 2c 20 34 2c 20 |16] =..{| 14, 4, |
|00002020| 31 33 2c 20 31 2c 20 32 | 2c 20 31 35 2c 20 31 31 |13, 1, 2|, 15, 11|
|00002030| 2c 20 38 2c 20 33 2c 20 | 31 30 2c 20 36 2c 20 31 |, 8, 3, |10, 6, 1|
|00002040| 32 2c 20 35 2c 20 39 2c | 20 30 2c 20 37 2c 0a 09 |2, 5, 9,| 0, 7,..|
|00002050| 20 20 30 2c 20 31 35 2c | 20 37 2c 20 34 2c 20 31 |  0, 15,| 7, 4, 1|
|00002060| 34 2c 20 32 2c 20 31 33 | 2c 20 31 2c 20 31 30 2c |4, 2, 13|, 1, 10,|
|00002070| 20 36 2c 20 31 32 2c 20 | 31 31 2c 20 39 2c 20 35 | 6, 12, |11, 9, 5|
|00002080| 2c 20 33 2c 20 38 2c 0a | 09 20 20 34 2c 20 31 2c |, 3, 8,.|.  4, 1,|
|00002090| 20 31 34 2c 20 38 2c 20 | 31 33 2c 20 36 2c 20 32 | 14, 8, |13, 6, 2|
|000020a0| 2c 20 31 31 2c 20 31 35 | 2c 20 31 32 2c 20 39 2c |, 11, 15|, 12, 9,|
|000020b0| 20 37 2c 20 33 2c 20 31 | 30 2c 20 35 2c 20 30 2c | 7, 3, 1|0, 5, 0,|
|000020c0| 0a 09 20 20 31 35 2c 20 | 31 32 2c 20 38 2c 20 32 |..  15, |12, 8, 2|
|000020d0| 2c 20 34 2c 20 39 2c 20 | 31 2c 20 37 2c 20 35 2c |, 4, 9, |1, 7, 5,|
|000020e0| 20 31 31 2c 20 33 2c 20 | 31 34 2c 20 31 30 2c 20 | 11, 3, |14, 10, |
|000020f0| 30 2c 20 36 2c 20 31 33 | 2c 0a 0a 09 20 20 31 35 |0, 6, 13|,...  15|
|00002100| 2c 20 31 2c 20 38 2c 20 | 31 34 2c 20 36 2c 20 31 |, 1, 8, |14, 6, 1|
|00002110| 31 2c 20 33 2c 20 34 2c | 20 39 2c 20 37 2c 20 32 |1, 3, 4,| 9, 7, 2|
|00002120| 2c 20 31 33 2c 20 31 32 | 2c 20 30 2c 20 35 2c 20 |, 13, 12|, 0, 5, |
|00002130| 31 30 2c 0a 09 20 20 33 | 2c 20 31 33 2c 20 34 2c |10,..  3|, 13, 4,|
|00002140| 20 37 2c 20 31 35 2c 20 | 32 2c 20 38 2c 20 31 34 | 7, 15, |2, 8, 14|
|00002150| 2c 20 31 32 2c 20 30 2c | 20 31 2c 20 31 30 2c 20 |, 12, 0,| 1, 10, |
|00002160| 36 2c 20 39 2c 20 31 31 | 2c 20 35 2c 0a 09 20 20 |6, 9, 11|, 5,..  |
|00002170| 30 2c 20 31 34 2c 20 37 | 2c 20 31 31 2c 20 31 30 |0, 14, 7|, 11, 10|
|00002180| 2c 20 34 2c 20 31 33 2c | 20 31 2c 20 35 2c 20 38 |, 4, 13,| 1, 5, 8|
|00002190| 2c 20 31 32 2c 20 36 2c | 20 39 2c 20 33 2c 20 32 |, 12, 6,| 9, 3, 2|
|000021a0| 2c 20 31 35 2c 0a 09 20 | 20 31 33 2c 20 38 2c 20 |, 15,.. | 13, 8, |
|000021b0| 31 30 2c 20 31 2c 20 33 | 2c 20 31 35 2c 20 34 2c |10, 1, 3|, 15, 4,|
|000021c0| 20 32 2c 20 31 31 2c 20 | 36 2c 20 37 2c 20 31 32 | 2, 11, |6, 7, 12|
|000021d0| 2c 20 30 2c 20 35 2c 20 | 31 34 2c 20 39 2c 0a 0a |, 0, 5, |14, 9,..|
|000021e0| 09 20 20 31 30 2c 20 30 | 2c 20 39 2c 20 31 34 2c |.  10, 0|, 9, 14,|
|000021f0| 20 36 2c 20 33 2c 20 31 | 35 2c 20 35 2c 20 31 2c | 6, 3, 1|5, 5, 1,|
|00002200| 20 31 33 2c 20 31 32 2c | 20 37 2c 20 31 31 2c 20 | 13, 12,| 7, 11, |
|00002210| 34 2c 20 32 2c 20 38 2c | 0a 09 20 20 31 33 2c 20 |4, 2, 8,|..  13, |
|00002220| 37 2c 20 30 2c 20 39 2c | 20 33 2c 20 34 2c 20 36 |7, 0, 9,| 3, 4, 6|
|00002230| 2c 20 31 30 2c 20 32 2c | 20 38 2c 20 35 2c 20 31 |, 10, 2,| 8, 5, 1|
|00002240| 34 2c 20 31 32 2c 20 31 | 31 2c 20 31 35 2c 20 31 |4, 12, 1|1, 15, 1|
|00002250| 2c 0a 09 20 20 31 33 2c | 20 36 2c 20 34 2c 20 39 |,..  13,| 6, 4, 9|
|00002260| 2c 20 38 2c 20 31 35 2c | 20 33 2c 20 30 2c 20 31 |, 8, 15,| 3, 0, 1|
|00002270| 31 2c 20 31 2c 20 32 2c | 20 31 32 2c 20 35 2c 20 |1, 1, 2,| 12, 5, |
|00002280| 31 30 2c 20 31 34 2c 20 | 37 2c 0a 09 20 20 31 2c |10, 14, |7,..  1,|
|00002290| 20 31 30 2c 20 31 33 2c | 20 30 2c 20 36 2c 20 39 | 10, 13,| 0, 6, 9|
|000022a0| 2c 20 38 2c 20 37 2c 20 | 34 2c 20 31 35 2c 20 31 |, 8, 7, |4, 15, 1|
|000022b0| 34 2c 20 33 2c 20 31 31 | 2c 20 35 2c 20 32 2c 20 |4, 3, 11|, 5, 2, |
|000022c0| 31 32 2c 0a 0a 09 20 20 | 37 2c 20 31 33 2c 20 31 |12,...  |7, 13, 1|
|000022d0| 34 2c 20 33 2c 20 30 2c | 20 36 2c 20 39 2c 20 31 |4, 3, 0,| 6, 9, 1|
|000022e0| 30 2c 20 31 2c 20 32 2c | 20 38 2c 20 35 2c 20 31 |0, 1, 2,| 8, 5, 1|
|000022f0| 31 2c 20 31 32 2c 20 34 | 2c 20 31 35 2c 0a 09 20 |1, 12, 4|, 15,.. |
|00002300| 20 31 33 2c 20 38 2c 20 | 31 31 2c 20 35 2c 20 36 | 13, 8, |11, 5, 6|
|00002310| 2c 20 31 35 2c 20 30 2c | 20 33 2c 20 34 2c 20 37 |, 15, 0,| 3, 4, 7|
|00002320| 2c 20 32 2c 20 31 32 2c | 20 31 2c 20 31 30 2c 20 |, 2, 12,| 1, 10, |
|00002330| 31 34 2c 20 39 2c 0a 09 | 20 20 31 30 2c 20 36 2c |14, 9,..|  10, 6,|
|00002340| 20 39 2c 20 30 2c 20 31 | 32 2c 20 31 31 2c 20 37 | 9, 0, 1|2, 11, 7|
|00002350| 2c 20 31 33 2c 20 31 35 | 2c 20 31 2c 20 33 2c 20 |, 13, 15|, 1, 3, |
|00002360| 31 34 2c 20 35 2c 20 32 | 2c 20 38 2c 20 34 2c 0a |14, 5, 2|, 8, 4,.|
|00002370| 09 20 20 33 2c 20 31 35 | 2c 20 30 2c 20 36 2c 20 |.  3, 15|, 0, 6, |
|00002380| 31 30 2c 20 31 2c 20 31 | 33 2c 20 38 2c 20 39 2c |10, 1, 1|3, 8, 9,|
|00002390| 20 34 2c 20 35 2c 20 31 | 31 2c 20 31 32 2c 20 37 | 4, 5, 1|1, 12, 7|
|000023a0| 2c 20 32 2c 20 31 34 2c | 0a 0a 09 20 20 32 2c 20 |, 2, 14,|...  2, |
|000023b0| 31 32 2c 20 34 2c 20 31 | 2c 20 37 2c 20 31 30 2c |12, 4, 1|, 7, 10,|
|000023c0| 20 31 31 2c 20 36 2c 20 | 38 2c 20 35 2c 20 33 2c | 11, 6, |8, 5, 3,|
|000023d0| 20 31 35 2c 20 31 33 2c | 20 30 2c 20 31 34 2c 20 | 15, 13,| 0, 14, |
|000023e0| 39 2c 0a 09 20 20 31 34 | 2c 20 31 31 2c 20 32 2c |9,..  14|, 11, 2,|
|000023f0| 20 31 32 2c 20 34 2c 20 | 37 2c 20 31 33 2c 20 31 | 12, 4, |7, 13, 1|
|00002400| 2c 20 35 2c 20 30 2c 20 | 31 35 2c 20 31 30 2c 20 |, 5, 0, |15, 10, |
|00002410| 33 2c 20 39 2c 20 38 2c | 20 36 2c 0a 09 20 20 34 |3, 9, 8,| 6,..  4|
|00002420| 2c 20 32 2c 20 31 2c 20 | 31 31 2c 20 31 30 2c 20 |, 2, 1, |11, 10, |
|00002430| 31 33 2c 20 37 2c 20 38 | 2c 20 31 35 2c 20 39 2c |13, 7, 8|, 15, 9,|
|00002440| 20 31 32 2c 20 35 2c 20 | 36 2c 20 33 2c 20 30 2c | 12, 5, |6, 3, 0,|
|00002450| 20 31 34 2c 0a 09 20 20 | 31 31 2c 20 38 2c 20 31 | 14,..  |11, 8, 1|
|00002460| 32 2c 20 37 2c 20 31 2c | 20 31 34 2c 20 32 2c 20 |2, 7, 1,| 14, 2, |
|00002470| 31 33 2c 20 36 2c 20 31 | 35 2c 20 30 2c 20 39 2c |13, 6, 1|5, 0, 9,|
|00002480| 20 31 30 2c 20 34 2c 20 | 35 2c 20 33 2c 0a 0a 09 | 10, 4, |5, 3,...|
|00002490| 20 20 31 32 2c 20 31 2c | 20 31 30 2c 20 31 35 2c |  12, 1,| 10, 15,|
|000024a0| 20 39 2c 20 32 2c 20 36 | 2c 20 38 2c 20 30 2c 20 | 9, 2, 6|, 8, 0, |
|000024b0| 31 33 2c 20 33 2c 20 34 | 2c 20 31 34 2c 20 37 2c |13, 3, 4|, 14, 7,|
|000024c0| 20 35 2c 20 31 31 2c 0a | 09 20 20 31 30 2c 20 31 | 5, 11,.|.  10, 1|
|000024d0| 35 2c 20 34 2c 20 32 2c | 20 37 2c 20 31 32 2c 20 |5, 4, 2,| 7, 12, |
|000024e0| 39 2c 20 35 2c 20 36 2c | 20 31 2c 20 31 33 2c 20 |9, 5, 6,| 1, 13, |
|000024f0| 31 34 2c 20 30 2c 20 31 | 31 2c 20 33 2c 20 38 2c |14, 0, 1|1, 3, 8,|
|00002500| 0a 09 20 20 39 2c 20 31 | 34 2c 20 31 35 2c 20 35 |..  9, 1|4, 15, 5|
|00002510| 2c 20 32 2c 20 38 2c 20 | 31 32 2c 20 33 2c 20 37 |, 2, 8, |12, 3, 7|
|00002520| 2c 20 30 2c 20 34 2c 20 | 31 30 2c 20 31 2c 20 31 |, 0, 4, |10, 1, 1|
|00002530| 33 2c 20 31 31 2c 20 36 | 2c 0a 09 20 20 34 2c 20 |3, 11, 6|,..  4, |
|00002540| 33 2c 20 32 2c 20 31 32 | 2c 20 39 2c 20 35 2c 20 |3, 2, 12|, 9, 5, |
|00002550| 31 35 2c 20 31 30 2c 20 | 31 31 2c 20 31 34 2c 20 |15, 10, |11, 14, |
|00002560| 31 2c 20 37 2c 20 36 2c | 20 30 2c 20 38 2c 20 31 |1, 7, 6,| 0, 8, 1|
|00002570| 33 2c 0a 0a 09 20 20 34 | 2c 20 31 31 2c 20 32 2c |3,...  4|, 11, 2,|
|00002580| 20 31 34 2c 20 31 35 2c | 20 30 2c 20 38 2c 20 31 | 14, 15,| 0, 8, 1|
|00002590| 33 2c 20 33 2c 20 31 32 | 2c 20 39 2c 20 37 2c 20 |3, 3, 12|, 9, 7, |
|000025a0| 35 2c 20 31 30 2c 20 36 | 2c 20 31 2c 0a 09 20 20 |5, 10, 6|, 1,..  |
|000025b0| 31 33 2c 20 30 2c 20 31 | 31 2c 20 37 2c 20 34 2c |13, 0, 1|1, 7, 4,|
|000025c0| 20 39 2c 20 31 2c 20 31 | 30 2c 20 31 34 2c 20 33 | 9, 1, 1|0, 14, 3|
|000025d0| 2c 20 35 2c 20 31 32 2c | 20 32 2c 20 31 35 2c 20 |, 5, 12,| 2, 15, |
|000025e0| 38 2c 20 36 2c 0a 09 20 | 20 31 2c 20 34 2c 20 31 |8, 6,.. | 1, 4, 1|
|000025f0| 31 2c 20 31 33 2c 20 31 | 32 2c 20 33 2c 20 37 2c |1, 13, 1|2, 3, 7,|
|00002600| 20 31 34 2c 20 31 30 2c | 20 31 35 2c 20 36 2c 20 | 14, 10,| 15, 6, |
|00002610| 38 2c 20 30 2c 20 35 2c | 20 39 2c 20 32 2c 0a 09 |8, 0, 5,| 9, 2,..|
|00002620| 20 20 36 2c 20 31 31 2c | 20 31 33 2c 20 38 2c 20 |  6, 11,| 13, 8, |
|00002630| 31 2c 20 34 2c 20 31 30 | 2c 20 37 2c 20 39 2c 20 |1, 4, 10|, 7, 9, |
|00002640| 35 2c 20 30 2c 20 31 35 | 2c 20 31 34 2c 20 32 2c |5, 0, 15|, 14, 2,|
|00002650| 20 33 2c 20 31 32 2c 0a | 0a 09 20 20 31 33 2c 20 | 3, 12,.|..  13, |
|00002660| 32 2c 20 38 2c 20 34 2c | 20 36 2c 20 31 35 2c 20 |2, 8, 4,| 6, 15, |
|00002670| 31 31 2c 20 31 2c 20 31 | 30 2c 20 39 2c 20 33 2c |11, 1, 1|0, 9, 3,|
|00002680| 20 31 34 2c 20 35 2c 20 | 30 2c 20 31 32 2c 20 37 | 14, 5, |0, 12, 7|
|00002690| 2c 0a 09 20 20 31 2c 20 | 31 35 2c 20 31 33 2c 20 |,..  1, |15, 13, |
|000026a0| 38 2c 20 31 30 2c 20 33 | 2c 20 37 2c 20 34 2c 20 |8, 10, 3|, 7, 4, |
|000026b0| 31 32 2c 20 35 2c 20 36 | 2c 20 31 31 2c 20 30 2c |12, 5, 6|, 11, 0,|
|000026c0| 20 31 34 2c 20 39 2c 20 | 32 2c 0a 09 20 20 37 2c | 14, 9, |2,..  7,|
|000026d0| 20 31 31 2c 20 34 2c 20 | 31 2c 20 39 2c 20 31 32 | 11, 4, |1, 9, 12|
|000026e0| 2c 20 31 34 2c 20 32 2c | 20 30 2c 20 36 2c 20 31 |, 14, 2,| 0, 6, 1|
|000026f0| 30 2c 20 31 33 2c 20 31 | 35 2c 20 33 2c 20 35 2c |0, 13, 1|5, 3, 5,|
|00002700| 20 38 2c 0a 09 20 20 32 | 2c 20 31 2c 20 31 34 2c | 8,..  2|, 1, 14,|
|00002710| 20 37 2c 20 34 2c 20 31 | 30 2c 20 38 2c 20 31 33 | 7, 4, 1|0, 8, 13|
|00002720| 2c 20 31 35 2c 20 31 32 | 2c 20 39 2c 20 30 2c 20 |, 15, 12|, 9, 0, |
|00002730| 33 2c 20 35 2c 20 36 2c | 20 31 31 20 7d 3b 0a 0a |3, 5, 6,| 11 };..|
|00002740| 20 20 73 74 61 74 69 63 | 20 69 6e 74 20 70 74 61 |  static| int pta|
|00002750| 62 20 5b 33 32 5d 20 3d | 0a 09 7b 20 31 36 2c 20 |b [32] =|..{ 16, |
|00002760| 37 2c 20 32 30 2c 20 32 | 31 2c 0a 09 20 20 32 39 |7, 20, 2|1,..  29|
|00002770| 2c 20 31 32 2c 20 32 38 | 2c 20 31 37 2c 0a 09 20 |, 12, 28|, 17,.. |
|00002780| 20 31 2c 20 31 35 2c 20 | 32 33 2c 20 32 36 2c 0a | 1, 15, |23, 26,.|
|00002790| 09 20 20 35 2c 20 31 38 | 2c 20 33 31 2c 20 31 30 |.  5, 18|, 31, 10|
|000027a0| 2c 0a 09 20 20 32 2c 20 | 38 2c 20 32 34 2c 20 31 |,..  2, |8, 24, 1|
|000027b0| 34 2c 0a 09 20 20 33 32 | 2c 20 32 37 2c 20 33 2c |4,..  32|, 27, 3,|
|000027c0| 20 39 2c 0a 09 20 20 31 | 39 2c 20 31 33 2c 20 33 | 9,..  1|9, 13, 3|
|000027d0| 30 2c 20 36 2c 0a 09 20 | 20 32 32 2c 20 31 31 2c |0, 6,.. | 22, 11,|
|000027e0| 20 34 2c 20 32 35 20 7d | 3b 0a 0a 20 20 73 74 61 | 4, 25 }|;..  sta|
|000027f0| 74 69 63 20 69 6e 74 20 | 65 74 61 62 20 5b 34 38 |tic int |etab [48|
|00002800| 5d 20 3d 20 0a 09 7b 20 | 33 32 2c 20 31 2c 20 32 |] = ..{ |32, 1, 2|
|00002810| 2c 20 33 2c 20 34 2c 20 | 35 2c 0a 09 20 20 34 2c |, 3, 4, |5,..  4,|
|00002820| 20 35 2c 20 36 2c 20 37 | 2c 20 38 2c 20 39 2c 0a | 5, 6, 7|, 8, 9,.|
|00002830| 09 20 20 38 2c 20 39 2c | 20 31 30 2c 20 31 31 2c |.  8, 9,| 10, 11,|
|00002840| 20 31 32 2c 20 31 33 2c | 0a 09 20 20 31 32 2c 20 | 12, 13,|..  12, |
|00002850| 31 33 2c 20 31 34 2c 20 | 31 35 2c 20 31 36 2c 20 |13, 14, |15, 16, |
|00002860| 31 37 2c 0a 09 20 20 31 | 36 2c 20 31 37 2c 20 31 |17,..  1|6, 17, 1|
|00002870| 38 2c 20 31 39 2c 20 32 | 30 2c 20 32 31 2c 0a 09 |8, 19, 2|0, 21,..|
|00002880| 20 20 32 30 2c 20 32 31 | 2c 20 32 32 2c 20 32 33 |  20, 21|, 22, 23|
|00002890| 2c 20 32 34 2c 20 32 35 | 2c 0a 09 20 20 32 34 2c |, 24, 25|,..  24,|
|000028a0| 20 32 35 2c 20 32 36 2c | 20 32 37 2c 20 32 38 2c | 25, 26,| 27, 28,|
|000028b0| 20 32 39 2c 0a 09 20 20 | 32 38 2c 20 32 39 2c 20 | 29,..  |28, 29, |
|000028c0| 33 30 2c 20 33 31 2c 20 | 33 32 2c 20 31 7d 3b 0a |30, 31, |32, 1};.|
|000028d0| 0a 20 20 72 65 67 69 73 | 74 65 72 20 69 6e 74 20 |.  regis|ter int |
|000028e0| 72 6f 75 6e 64 2c 20 73 | 62 2c 20 73 62 69 64 78 |round, s|b, sbidx|
|000028f0| 2c 20 69 2c 20 6a 3b 0a | 20 20 6c 6f 6e 67 20 65 |, i, j;.|  long e|
|00002900| 78 70 61 6e 20 5b 32 5d | 3b 20 20 20 2f 2a 20 72 |xpan [2]|;   /* r|
|00002910| 65 63 65 69 76 65 73 20 | 6f 75 74 70 75 74 20 6f |eceives |output o|
|00002920| 66 20 45 20 74 72 61 6e | 73 66 6f 72 6d 20 2a 2f |f E tran|sform */|
|00002930| 0a 20 20 6c 6f 6e 67 20 | 73 62 6f 75 74 2c 20 73 |.  long |sbout, s|
|00002940| 63 6f 70 79 3b 0a 20 20 | 6c 6f 6e 67 20 6f 61 72 |copy;.  |long oar|
|00002950| 72 20 5b 32 5d 3b 0a 0a | 20 20 64 6f 70 20 28 69 |r [2];..|  dop (i|
|00002960| 6e 61 72 2c 20 6f 75 74 | 61 72 2c 20 49 50 29 3b |nar, out|ar, IP);|
|00002970| 0a 0a 20 20 66 6f 72 20 | 28 72 6f 75 6e 64 20 3d |..  for |(round =|
|00002980| 20 30 3b 20 72 6f 75 6e | 64 20 3c 20 31 36 3b 20 | 0; roun|d < 16; |
|00002990| 72 6f 75 6e 64 2b 2b 29 | 0a 20 20 7b 0a 20 20 2f |round++)|.  {.  /|
|000029a0| 2a 20 66 69 72 73 74 20 | 70 65 72 66 6f 72 6d 20 |* first |perform |
|000029b0| 64 65 73 20 65 20 74 72 | 61 6e 73 66 6f 72 6d 61 |des e tr|ansforma|
|000029c0| 74 69 6f 6e 20 6f 66 20 | 33 32 2d 3e 34 38 20 62 |tion of |32->48 b|
|000029d0| 69 74 73 2e 0a 20 20 20 | 61 63 63 65 70 74 73 20 |its..   |accepts |
|000029e0| 61 6e 20 69 6e 70 75 74 | 20 6c 6f 6e 67 2c 20 72 |an input| long, r|
|000029f0| 65 74 75 72 6e 73 20 72 | 65 73 75 6c 74 20 69 6e |eturns r|esult in|
|00002a00| 74 6f 20 61 6e 20 61 72 | 72 61 79 20 6f 66 20 74 |to an ar|ray of t|
|00002a10| 77 6f 20 6c 6f 6e 67 73 | 0a 20 20 20 77 69 74 68 |wo longs|.   with|
|00002a20| 20 32 34 20 6c 6f 77 2d | 6f 72 64 65 72 20 62 69 | 24 low-|order bi|
|00002a30| 74 73 20 69 6e 20 65 61 | 63 68 20 65 6c 65 6d 65 |ts in ea|ch eleme|
|00002a40| 6e 74 20 2a 2f 0a 20 20 | 20 20 65 78 70 61 6e 20 |nt */.  |  expan |
|00002a50| 5b 30 5d 20 3d 20 65 78 | 70 61 6e 20 5b 31 5d 20 |[0] = ex|pan [1] |
|00002a60| 3d 20 30 4c 3b 0a 20 20 | 20 20 66 6f 72 20 28 69 |= 0L;.  |  for (i|
|00002a70| 20 3d 20 31 3b 20 69 20 | 3c 20 32 35 3b 20 69 2b | = 1; i |< 25; i+|
|00002a80| 2b 29 0a 20 20 20 20 7b | 0a 20 20 20 20 20 20 65 |+).    {|.      e|
|00002a90| 78 70 61 6e 20 5b 30 5d | 20 7c 3d 20 30 31 20 26 |xpan [0]| |= 01 &|
|00002aa0| 20 28 6f 75 74 61 72 20 | 5b 31 5d 20 3e 3e 20 28 | (outar |[1] >> (|
|00002ab0| 33 32 20 2d 20 65 74 61 | 62 5b 69 2d 31 5d 29 29 |32 - eta|b[i-1]))|
|00002ac0| 3b 20 20 20 20 0a 20 20 | 20 20 20 20 69 66 20 28 |;    .  |    if (|
|00002ad0| 69 20 21 3d 20 32 34 29 | 20 65 78 70 61 6e 20 5b |i != 24)| expan [|
|00002ae0| 30 5d 20 3c 3c 3d 20 31 | 3b 0a 20 20 20 20 7d 0a |0] <<= 1|;.    }.|
|00002af0| 20 20 20 20 66 6f 72 20 | 28 69 20 3d 20 32 35 3b |    for |(i = 25;|
|00002b00| 20 69 20 3c 20 34 39 3b | 20 69 2b 2b 29 0a 20 20 | i < 49;| i++).  |
|00002b10| 20 20 7b 0a 20 20 20 20 | 20 20 65 78 70 61 6e 20 |  {.    |  expan |
|00002b20| 5b 31 5d 20 7c 3d 20 30 | 31 20 26 20 28 6f 75 74 |[1] |= 0|1 & (out|
|00002b30| 61 72 20 5b 31 5d 20 3e | 3e 20 28 33 32 20 2d 20 |ar [1] >|> (32 - |
|00002b40| 65 74 61 62 5b 69 2d 31 | 5d 29 29 3b 0a 20 20 20 |etab[i-1|]));.   |
|00002b50| 20 20 20 69 66 20 28 69 | 20 21 3d 20 34 38 29 20 |   if (i| != 48) |
|00002b60| 65 78 70 61 6e 20 5b 31 | 5d 20 3c 3c 3d 20 31 3b |expan [1|] <<= 1;|
|00002b70| 0a 20 20 20 20 7d 0a 20 | 20 2f 2a 20 78 6f 72 20 |.    }. | /* xor |
|00002b80| 65 78 70 61 6e 64 65 64 | 20 71 75 61 6e 74 69 74 |expanded| quantit|
|00002b90| 79 20 77 69 74 68 20 6b | 65 79 20 73 63 68 65 64 |y with k|ey sched|
|00002ba0| 75 6c 65 20 2a 2f 0a 20 | 20 20 20 65 78 70 61 6e |ule */. |   expan|
|00002bb0| 20 5b 30 5d 20 5e 3d 20 | 6b 73 20 5b 28 66 6c 61 | [0] ^= |ks [(fla|
|00002bc0| 67 20 3d 3d 20 45 4e 43 | 52 59 50 54 29 20 3f 20 |g == ENC|RYPT) ? |
|00002bd0| 72 6f 75 6e 64 20 3a 20 | 31 35 20 2d 20 72 6f 75 |round : |15 - rou|
|00002be0| 6e 64 5d 20 5b 30 5d 3b | 0a 20 20 20 20 65 78 70 |nd] [0];|.    exp|
|00002bf0| 61 6e 20 5b 31 5d 20 5e | 3d 20 6b 73 20 5b 28 66 |an [1] ^|= ks [(f|
|00002c00| 6c 61 67 20 3d 3d 20 45 | 4e 43 52 59 50 54 29 20 |lag == E|NCRYPT) |
|00002c10| 3f 20 72 6f 75 6e 64 20 | 3a 20 31 35 20 2d 20 72 |? round |: 15 - r|
|00002c20| 6f 75 6e 64 5d 20 5b 31 | 5d 3b 0a 20 20 20 20 73 |ound] [1|];.    s|
|00002c30| 63 6f 70 79 20 3d 20 30 | 4c 3b 0a 20 20 20 20 66 |copy = 0|L;.    f|
|00002c40| 6f 72 20 28 73 62 20 3d | 20 30 3b 20 73 62 20 3c |or (sb =| 0; sb <|
|00002c50| 20 38 3b 20 73 62 2b 2b | 29 0a 20 20 20 20 7b 20 | 8; sb++|).    { |
|00002c60| 20 2f 2a 20 6c 6f 6f 6b | 20 75 70 20 62 69 74 73 | /* look| up bits|
|00002c70| 20 69 6e 20 73 2d 62 6f | 78 65 73 2c 20 66 69 6c | in s-bo|xes, fil|
|00002c80| 6c 69 6e 67 20 61 20 33 | 32 20 62 69 74 20 77 6f |ling a 3|2 bit wo|
|00002c90| 72 64 20 2a 2f 0a 20 20 | 20 20 20 20 73 62 69 64 |rd */.  |    sbid|
|00002ca0| 78 20 3d 20 30 58 33 46 | 20 26 20 28 28 73 62 20 |x = 0X3F| & ((sb |
|00002cb0| 3c 20 34 29 20 3f 20 0a | 20 20 20 20 20 20 28 65 |< 4) ? .|      (e|
|00002cc0| 78 70 61 6e 20 5b 30 5d | 20 3e 3e 20 28 31 38 20 |xpan [0]| >> (18 |
|00002cd0| 2d 20 28 36 20 2a 20 73 | 62 29 29 29 20 3a 20 28 |- (6 * s|b))) : (|
|00002ce0| 65 78 70 61 6e 20 5b 31 | 5d 20 3e 3e 20 28 31 38 |expan [1|] >> (18|
|00002cf0| 20 2d 20 28 36 20 2a 20 | 28 73 62 2d 34 29 29 29 | - (6 * |(sb-4)))|
|00002d00| 29 20 29 3b 0a 20 20 20 | 20 20 20 2f 2a 20 73 65 |) );.   |   /* se|
|00002d10| 6c 65 63 74 20 62 69 74 | 73 20 70 65 72 20 6e 62 |lect bit|s per nb|
|00002d20| 73 20 73 70 65 63 20 2a | 2f 0a 20 20 20 20 20 20 |s spec *|/.      |
|00002d30| 69 20 3d 20 73 62 69 64 | 78 3b 20 69 20 26 3d 20 |i = sbid|x; i &= |
|00002d40| 30 58 32 30 3b 20 69 20 | 3e 3e 3d 20 34 3b 20 69 |0X20; i |>>= 4; i|
|00002d50| 20 7c 3d 20 30 31 20 26 | 20 73 62 69 64 78 3b 20 | |= 01 &| sbidx; |
|00002d60| 20 20 20 20 20 0a 20 20 | 20 20 20 20 6a 20 3d 20 |     .  |    j = |
|00002d70| 73 62 69 64 78 3b 20 6a | 20 26 3d 20 30 58 31 45 |sbidx; j| &= 0X1E|
|00002d80| 3b 20 6a 20 3e 3e 3d 20 | 31 3b 0a 20 20 20 20 20 |; j >>= |1;.     |
|00002d90| 20 73 63 6f 70 79 20 7c | 3d 20 73 5f 74 61 62 6c | scopy ||= s_tabl|
|00002da0| 65 20 5b 73 62 5d 20 5b | 69 5d 20 5b 6a 5d 3b 0a |e [sb] [|i] [j];.|
|00002db0| 20 20 20 20 20 20 69 66 | 20 28 73 62 20 21 3d 20 |      if| (sb != |
|00002dc0| 37 29 20 73 63 6f 70 79 | 20 3c 3c 3d 20 34 3b 0a |7) scopy| <<= 4;.|
|00002dd0| 20 20 20 20 7d 0a 20 20 | 20 20 2f 2a 20 6e 6f 77 |    }.  |  /* now|
|00002de0| 2c 20 70 65 72 66 6f 72 | 6d 20 70 20 70 65 72 6d |, perfor|m p perm|
|00002df0| 75 74 61 74 69 6f 6e 20 | 69 6e 74 6f 20 27 73 62 |utation |into 'sb|
|00002e00| 6f 75 74 27 20 2a 2f 0a | 20 20 20 20 73 62 6f 75 |out' */.|    sbou|
|00002e10| 74 20 3d 20 30 4c 3b 0a | 20 20 20 20 66 6f 72 20 |t = 0L;.|    for |
|00002e20| 28 69 20 3d 20 31 3b 20 | 69 20 3c 20 33 33 3b 20 |(i = 1; |i < 33; |
|00002e30| 69 2b 2b 29 0a 20 20 20 | 20 7b 0a 20 20 20 20 20 |i++).   | {.     |
|00002e40| 20 73 62 6f 75 74 20 7c | 3d 20 30 31 20 26 20 28 | sbout ||= 01 & (|
|00002e50| 73 63 6f 70 79 20 3e 3e | 20 28 33 32 20 2d 20 70 |scopy >>| (32 - p|
|00002e60| 74 61 62 20 5b 69 2d 31 | 5d 29 29 3b 0a 20 20 20 |tab [i-1|]));.   |
|00002e70| 20 20 20 69 66 20 28 69 | 20 21 3d 20 33 32 29 20 |   if (i| != 32) |
|00002e80| 73 62 6f 75 74 20 3c 3c | 3d 20 31 3b 0a 20 20 20 |sbout <<|= 1;.   |
|00002e90| 20 7d 0a 0a 20 20 20 20 | 73 63 6f 70 79 20 3d 20 | }..    |scopy = |
|00002ea0| 6f 75 74 61 72 20 5b 30 | 5d 3b 0a 20 20 20 20 6f |outar [0|];.    o|
|00002eb0| 75 74 61 72 20 5b 30 5d | 20 3d 20 6f 75 74 61 72 |utar [0]| = outar|
|00002ec0| 20 5b 31 5d 3b 0a 20 20 | 20 20 6f 75 74 61 72 20 | [1];.  |  outar |
|00002ed0| 5b 31 5d 20 3d 20 73 63 | 6f 70 79 20 5e 20 73 62 |[1] = sc|opy ^ sb|
|00002ee0| 6f 75 74 3b 0a 20 20 7d | 0a 0a 20 20 2f 2a 20 61 |out;.  }|..  /* a|
|00002ef0| 20 66 69 6e 61 6c 20 73 | 77 61 70 20 69 6e 74 6f | final s|wap into|
|00002f00| 20 74 65 6d 70 20 63 6f | 70 79 20 2d 20 6c 65 74 | temp co|py - let|
|00002f10| 20 64 6f 70 20 6d 6f 76 | 65 20 69 6e 74 6f 20 74 | dop mov|e into t|
|00002f20| 72 75 65 20 6f 75 74 70 | 75 74 20 61 72 72 61 79 |rue outp|ut array|
|00002f30| 20 2a 2f 0a 20 20 73 63 | 6f 70 79 20 3d 20 6f 75 | */.  sc|opy = ou|
|00002f40| 74 61 72 20 5b 30 5d 3b | 0a 20 20 6f 61 72 72 20 |tar [0];|.  oarr |
|00002f50| 5b 30 5d 20 3d 20 6f 75 | 74 61 72 20 5b 31 5d 3b |[0] = ou|tar [1];|
|00002f60| 0a 20 20 6f 61 72 72 20 | 5b 31 5d 20 3d 20 73 63 |.  oarr |[1] = sc|
|00002f70| 6f 70 79 3b 0a 20 20 64 | 6f 70 20 28 6f 61 72 72 |opy;.  d|op (oarr|
|00002f80| 2c 20 6f 75 74 61 72 2c | 20 49 50 49 29 3b 0a 7d |, outar,| IPI);.}|
|00002f90| 0a 0c 0a 2f 2a 20 73 75 | 70 70 6f 72 74 20 72 6f |.../* su|pport ro|
|00002fa0| 75 74 69 6e 65 73 20 66 | 6f 72 20 64 65 6d 6f 64 |utines f|or demod|
|00002fb0| 65 73 20 2a 2f 0a 0a 2f | 2a 20 72 65 61 64 20 69 |es */../|* read i|
|00002fc0| 6e 70 75 74 20 62 79 74 | 65 73 20 66 72 6f 6d 20 |nput byt|es from |
|00002fd0| 73 74 64 69 6e 20 2a 2f | 0a 69 6e 74 20 20 20 20 |stdin */|.int    |
|00002fe0| 20 67 5f 69 6e 62 79 74 | 65 73 20 28 6e 62 79 2c | g_inbyt|es (nby,|
|00002ff0| 20 62 75 66 66 65 72 29 | 20 20 20 20 20 2f 2a 20 | buffer)|     /* |
|00003000| 72 65 74 75 72 6e 73 20 | 54 52 55 45 20 69 66 66 |returns |TRUE iff|
|00003010| 20 45 4f 46 20 72 65 61 | 63 68 65 64 20 2a 2f 0a | EOF rea|ched */.|
|00003020| 69 6e 74 20 20 20 20 20 | 6e 62 79 3b 20 20 20 20 |int     |nby;    |
|00003030| 20 20 20 20 2f 2a 20 6e | 75 6d 62 65 72 20 6f 66 |    /* n|umber of|
|00003040| 20 62 79 74 65 73 20 6e | 65 65 64 65 64 20 61 74 | bytes n|eeded at|
|00003050| 20 61 20 74 69 6d 65 20 | 2a 2f 0a 09 09 20 20 20 | a time |*/...   |
|00003060| 20 2f 2a 20 69 66 20 69 | 6e 73 75 66 66 69 63 69 | /* if i|nsuffici|
|00003070| 65 6e 74 2c 20 77 69 6c | 6c 20 62 65 20 70 61 64 |ent, wil|l be pad|
|00003080| 64 65 64 20 77 69 74 68 | 20 6e 75 6c 6c 73 20 2a |ded with| nulls *|
|00003090| 2f 0a 63 68 61 72 20 20 | 20 20 62 75 66 66 65 72 |/.char  |  buffer|
|000030a0| 20 5b 5d 3b 0a 7b 0a 20 | 20 69 6e 74 20 20 20 62 | [];.{. | int   b|
|000030b0| 75 66 69 78 3b 0a 20 20 | 69 6e 74 20 20 20 67 65 |ufix;.  |int   ge|
|000030c0| 74 63 76 61 6c 3b 0a 0a | 20 20 2f 2a 20 69 6e 69 |tcval;..|  /* ini|
|000030d0| 74 20 61 6c 6c 20 73 69 | 67 6e 69 66 69 63 61 6e |t all si|gnifican|
|000030e0| 74 20 62 79 74 65 73 20 | 74 6f 20 6e 75 6c 6c 20 |t bytes |to null |
|000030f0| 70 61 64 20 2a 2f 0a 20 | 20 66 6f 72 20 28 62 75 |pad */. | for (bu|
|00003100| 66 69 78 20 3d 20 30 3b | 20 62 75 66 69 78 20 3c |fix = 0;| bufix <|
|00003110| 20 6e 62 79 3b 20 62 75 | 66 69 78 2b 2b 29 20 62 | nby; bu|fix++) b|
|00003120| 75 66 66 65 72 5b 62 75 | 66 69 78 5d 20 3d 20 30 |uffer[bu|fix] = 0|
|00003130| 3b 0a 0a 20 20 66 6f 72 | 20 28 62 75 66 69 78 20 |;..  for| (bufix |
|00003140| 3d 20 30 3b 20 62 75 66 | 69 78 20 3c 20 6e 62 79 |= 0; buf|ix < nby|
|00003150| 3b 20 62 75 66 69 78 2b | 2b 29 0a 20 20 7b 0a 20 |; bufix+|+).  {. |
|00003160| 20 20 20 67 65 74 63 76 | 61 6c 20 3d 20 67 65 74 |   getcv|al = get|
|00003170| 63 68 61 72 20 28 29 3b | 0a 20 20 20 20 62 75 66 |char ();|.    buf|
|00003180| 66 65 72 20 5b 62 75 66 | 69 78 5d 20 3d 20 28 63 |fer [buf|ix] = (c|
|00003190| 68 61 72 29 20 67 65 74 | 63 76 61 6c 3b 0a 20 20 |har) get|cval;.  |
|000031a0| 20 20 69 66 20 28 67 65 | 74 63 76 61 6c 20 3d 3d |  if (ge|tcval ==|
|000031b0| 20 45 4f 46 29 0a 20 20 | 20 20 7b 0a 20 20 20 20 | EOF).  |  {.    |
|000031c0| 20 20 62 75 66 66 65 72 | 5b 62 75 66 69 78 5d 20 |  buffer|[bufix] |
|000031d0| 3d 20 30 3b 20 20 20 20 | 20 20 20 20 2f 2a 20 72 |= 0;    |    /* r|
|000031e0| 65 70 6c 61 63 65 20 77 | 69 74 68 20 70 61 64 20 |eplace w|ith pad |
|000031f0| 2a 2f 0a 20 20 20 20 20 | 20 72 65 74 75 72 6e 20 |*/.     | return |
|00003200| 28 54 52 55 45 29 3b 20 | 20 20 20 20 20 20 20 20 |(TRUE); |        |
|00003210| 20 20 20 2f 2a 20 69 6e | 64 69 63 61 74 69 6e 67 |   /* in|dicating|
|00003220| 20 74 68 61 74 20 45 4f | 46 20 64 65 74 65 63 74 | that EO|F detect|
|00003230| 65 64 20 2a 2f 0a 20 20 | 20 20 7d 0a 20 20 7d 0a |ed */.  |  }.  }.|
|00003240| 20 20 72 65 74 75 72 6e | 20 28 46 41 4c 53 45 29 |  return| (FALSE)|
|00003250| 3b 20 20 20 20 20 20 20 | 2f 2a 20 69 6e 64 69 63 |;       |/* indic|
|00003260| 61 74 69 6e 67 20 6e 6f | 20 45 4f 46 20 64 65 74 |ating no| EOF det|
|00003270| 65 63 74 65 64 20 2a 2f | 0a 7d 0a 0a 2f 2a 20 72 |ected */|.}../* r|
|00003280| 65 70 72 65 73 65 6e 74 | 20 61 20 73 65 72 69 65 |epresent| a serie|
|00003290| 73 20 6f 66 20 62 79 74 | 65 73 20 28 63 6f 6e 64 |s of byt|es (cond|
|000032a0| 69 74 69 6f 6e 61 6c 6c | 79 29 20 69 6e 20 74 77 |itionall|y) in tw|
|000032b0| 6f 20 62 75 66 66 65 72 | 73 2c 20 61 73 0a 20 20 |o buffer|s, as.  |
|000032c0| 20 70 72 69 6e 74 61 62 | 6c 65 20 72 65 70 72 65 | printab|le repre|
|000032d0| 73 65 6e 74 61 74 69 6f | 6e 20 61 6e 64 20 68 65 |sentatio|n and he|
|000032e0| 78 20 72 65 70 72 65 73 | 65 6e 74 61 74 69 6f 6e |x repres|entation|
|000032f0| 20 2a 2f 0a 64 69 5f 62 | 79 74 65 73 20 28 6e 62 | */.di_b|ytes (nb|
|00003300| 79 2c 20 69 6e 62 75 66 | 2c 20 70 72 5f 62 75 66 |y, inbuf|, pr_buf|
|00003310| 2c 20 68 78 5f 62 75 66 | 29 0a 69 6e 74 20 20 20 |, hx_buf|).int   |
|00003320| 20 20 6e 62 79 3b 0a 63 | 68 61 72 20 20 20 20 69 |  nby;.c|har    i|
|00003330| 6e 62 75 66 20 5b 5d 3b | 0a 63 68 61 72 20 20 20 |nbuf [];|.char   |
|00003340| 20 70 72 5f 62 75 66 20 | 5b 5d 3b 20 20 20 20 20 | pr_buf |[];     |
|00003350| 20 2f 2a 20 4e 55 4c 4c | 20 69 66 20 6e 6f 74 20 | /* NULL| if not |
|00003360| 64 65 73 69 72 65 64 20 | 2a 2f 0a 63 68 61 72 20 |desired |*/.char |
|00003370| 20 20 20 68 78 5f 62 75 | 66 20 5b 5d 3b 20 20 20 |   hx_bu|f [];   |
|00003380| 20 20 20 2f 2a 20 4e 55 | 4c 4c 20 69 66 20 6e 6f |   /* NU|LL if no|
|00003390| 74 20 64 65 73 69 72 65 | 64 20 2a 2f 0a 7b 0a 20 |t desire|d */.{. |
|000033a0| 20 69 6e 74 20 69 3b 0a | 0a 20 20 66 6f 72 20 28 | int i;.|.  for (|
|000033b0| 69 20 3d 20 30 3b 20 69 | 20 3c 20 6e 62 79 3b 20 |i = 0; i| < nby; |
|000033c0| 69 2b 2b 29 0a 20 20 7b | 0a 20 20 20 20 69 66 20 |i++).  {|.    if |
|000033d0| 28 70 72 5f 62 75 66 20 | 21 3d 20 4e 55 4c 4c 29 |(pr_buf |!= NULL)|
|000033e0| 0a 20 20 20 20 7b 0a 20 | 20 20 20 20 20 2f 2a 20 |.    {. |     /* |
|000033f0| 54 72 79 20 74 6f 20 73 | 68 6f 77 20 61 73 20 61 |Try to s|how as a|
|00003400| 20 70 72 69 6e 74 61 62 | 6c 65 20 63 68 61 72 61 | printab|le chara|
|00003410| 63 74 65 72 2c 20 65 69 | 74 68 65 72 20 64 69 72 |cter, ei|ther dir|
|00003420| 65 63 74 6c 79 20 6f 72 | 20 2a 2f 0a 20 20 20 20 |ectly or| */.    |
|00003430| 20 20 2f 2a 20 62 79 20 | 6d 61 73 6b 69 6e 67 20 |  /* by |masking |
|00003440| 6f 66 66 20 74 68 65 20 | 4d 53 42 20 28 69 66 20 |off the |MSB (if |
|00003450| 74 68 65 20 6c 61 74 74 | 65 72 2c 20 70 72 65 66 |the latt|er, pref|
|00003460| 69 78 20 77 69 74 68 20 | 27 23 27 29 20 2a 2f 0a |ix with |'#') */.|
|00003470| 20 20 20 20 20 20 69 66 | 20 28 69 6e 62 75 66 20 |      if| (inbuf |
|00003480| 5b 69 5d 20 3e 20 30 78 | 37 66 29 0a 20 20 20 20 |[i] > 0x|7f).    |
|00003490| 20 20 7b 0a 09 69 66 20 | 28 69 73 70 72 69 6e 74 |  {..if |(isprint|
|000034a0| 20 28 69 6e 62 75 66 20 | 5b 69 5d 20 26 20 30 78 | (inbuf |[i] & 0x|
|000034b0| 37 66 29 29 0a 09 20 20 | 73 70 72 69 6e 74 66 20 |7f))..  |sprintf |
|000034c0| 28 70 72 5f 62 75 66 2c | 20 22 23 25 63 22 2c 20 |(pr_buf,| "#%c", |
|000034d0| 69 6e 62 75 66 20 5b 69 | 5d 20 26 20 30 78 37 66 |inbuf [i|] & 0x7f|
|000034e0| 29 3b 0a 09 65 6c 73 65 | 20 73 70 72 69 6e 74 66 |);..else| sprintf|
|000034f0| 20 28 70 72 5f 62 75 66 | 2c 20 22 20 20 22 29 3b | (pr_buf|, "  ");|
|00003500| 0a 20 20 20 20 20 20 7d | 0a 20 20 20 20 20 20 65 |.      }|.      e|
|00003510| 6c 73 65 0a 20 20 20 20 | 20 20 7b 0a 09 69 66 20 |lse.    |  {..if |
|00003520| 28 69 73 70 72 69 6e 74 | 20 28 69 6e 62 75 66 20 |(isprint| (inbuf |
|00003530| 5b 69 5d 29 29 0a 09 20 | 20 73 70 72 69 6e 74 66 |[i])).. | sprintf|
|00003540| 20 28 70 72 5f 62 75 66 | 2c 20 22 20 25 63 22 2c | (pr_buf|, " %c",|
|00003550| 20 69 6e 62 75 66 20 5b | 69 5d 29 3b 0a 09 65 6c | inbuf [|i]);..el|
|00003560| 73 65 20 73 70 72 69 6e | 74 66 20 28 70 72 5f 62 |se sprin|tf (pr_b|
|00003570| 75 66 2c 20 22 20 20 22 | 29 3b 0a 20 20 20 20 20 |uf, "  "|);.     |
|00003580| 20 7d 0a 20 20 20 20 20 | 20 70 72 5f 62 75 66 20 | }.     | pr_buf |
|00003590| 2b 3d 20 32 3b 0a 20 20 | 20 20 7d 0a 20 20 20 20 |+= 2;.  |  }.    |
|000035a0| 69 66 20 28 68 78 5f 62 | 75 66 20 21 3d 20 4e 55 |if (hx_b|uf != NU|
|000035b0| 4c 4c 29 0a 20 20 20 20 | 7b 0a 20 20 20 20 20 20 |LL).    |{.      |
|000035c0| 73 70 72 69 6e 74 66 20 | 28 68 78 5f 62 75 66 2c |sprintf |(hx_buf,|
|000035d0| 20 22 25 31 78 25 31 78 | 22 2c 20 30 78 66 20 26 | "%1x%1x|", 0xf &|
|000035e0| 20 28 69 6e 62 75 66 5b | 69 5d 3e 3e 34 29 2c 30 | (inbuf[|i]>>4),0|
|000035f0| 78 66 20 26 20 69 6e 62 | 75 66 20 5b 69 5d 29 3b |xf & inb|uf [i]);|
|00003600| 0a 20 20 20 20 20 20 68 | 78 5f 62 75 66 20 2b 3d |.      h|x_buf +=|
|00003610| 20 32 3b 0a 20 20 20 20 | 7d 0a 20 20 7d 0a 20 20 | 2;.    |}.  }.  |
|00003620| 69 66 20 28 70 72 5f 62 | 75 66 20 21 3d 20 4e 55 |if (pr_b|uf != NU|
|00003630| 4c 4c 29 20 73 70 72 69 | 6e 74 66 20 28 70 72 5f |LL) spri|ntf (pr_|
|00003640| 62 75 66 2c 20 22 7c 22 | 29 3b 0a 20 20 69 66 20 |buf, "|"|);.  if |
|00003650| 28 68 78 5f 62 75 66 20 | 21 3d 20 4e 55 4c 4c 29 |(hx_buf |!= NULL)|
|00003660| 20 73 70 72 69 6e 74 66 | 20 28 68 78 5f 62 75 66 | sprintf| (hx_buf|
|00003670| 2c 20 22 7c 22 29 3b 0a | 7d 0a 0a 70 61 63 6b 62 |, "|");.|}..packb|
|00003680| 74 6f 6c 20 28 61 73 5f | 62 61 2c 20 61 73 5f 6c |tol (as_|ba, as_l|
|00003690| 29 20 20 20 2f 2a 20 70 | 61 63 6b 20 34 20 62 79 |)   /* p|ack 4 by|
|000036a0| 74 65 73 20 69 6e 74 6f | 20 61 20 6c 6f 6e 67 20 |tes into| a long |
|000036b0| 2a 2f 0a 63 68 61 72 20 | 20 20 20 61 73 5f 62 61 |*/.char |   as_ba|
|000036c0| 20 5b 5d 3b 0a 6c 6f 6e | 67 20 20 20 20 2a 61 73 | [];.lon|g    *as|
|000036d0| 5f 6c 3b 0a 7b 0a 20 20 | 6c 6f 6e 67 20 6c 74 3b |_l;.{.  |long lt;|
|000036e0| 0a 0a 20 20 6c 74 20 3d | 20 61 73 5f 62 61 20 5b |..  lt =| as_ba [|
|000036f0| 30 5d 20 26 20 30 78 66 | 66 3b 0a 20 20 6c 74 20 |0] & 0xf|f;.  lt |
|00003700| 3c 3c 3d 20 38 3b 0a 20 | 20 6c 74 20 7c 3d 20 61 |<<= 8;. | lt |= a|
|00003710| 73 5f 62 61 20 5b 31 5d | 20 26 20 30 78 66 66 3b |s_ba [1]| & 0xff;|
|00003720| 0a 20 20 6c 74 20 3c 3c | 3d 20 38 3b 0a 20 20 6c |.  lt <<|= 8;.  l|
|00003730| 74 20 7c 3d 20 61 73 5f | 62 61 20 5b 32 5d 20 26 |t |= as_|ba [2] &|
|00003740| 20 30 78 66 66 3b 0a 20 | 20 6c 74 20 3c 3c 3d 20 | 0xff;. | lt <<= |
|00003750| 38 3b 0a 20 20 6c 74 20 | 7c 3d 20 61 73 5f 62 61 |8;.  lt ||= as_ba|
|00003760| 20 5b 33 5d 20 26 20 30 | 78 66 66 3b 0a 0a 20 20 | [3] & 0|xff;..  |
|00003770| 2a 61 73 5f 6c 20 3d 20 | 6c 74 3b 0a 7d 0a 0a 73 |*as_l = |lt;.}..s|
|00003780| 70 72 64 6c 74 6f 62 20 | 28 61 73 5f 6c 2c 20 61 |prdltob |(as_l, a|
|00003790| 73 5f 62 61 29 20 20 2f | 2a 20 73 70 72 65 61 64 |s_ba)  /|* spread|
|000037a0| 20 61 20 6c 6f 6e 67 20 | 69 6e 74 6f 20 34 20 62 | a long |into 4 b|
|000037b0| 79 74 65 73 20 2a 2f 0a | 6c 6f 6e 67 20 20 20 20 |ytes */.|long    |
|000037c0| 61 73 5f 6c 3b 0a 63 68 | 61 72 20 20 20 20 61 73 |as_l;.ch|ar    as|
|000037d0| 5f 62 61 20 5b 5d 3b 0a | 7b 0a 20 20 61 73 5f 62 |_ba [];.|{.  as_b|
|000037e0| 61 20 5b 30 5d 20 3d 20 | 28 63 68 61 72 29 20 28 |a [0] = |(char) (|
|000037f0| 28 61 73 5f 6c 20 3e 3e | 20 32 34 29 20 26 20 30 |(as_l >>| 24) & 0|
|00003800| 78 66 66 29 3b 0a 20 20 | 61 73 5f 62 61 20 5b 31 |xff);.  |as_ba [1|
|00003810| 5d 20 3d 20 28 63 68 61 | 72 29 20 28 28 61 73 5f |] = (cha|r) ((as_|
|00003820| 6c 20 3e 3e 20 31 36 29 | 20 26 20 30 78 66 66 29 |l >> 16)| & 0xff)|
|00003830| 3b 0a 20 20 61 73 5f 62 | 61 20 5b 32 5d 20 3d 20 |;.  as_b|a [2] = |
|00003840| 28 63 68 61 72 29 20 28 | 28 61 73 5f 6c 20 3e 3e |(char) (|(as_l >>|
|00003850| 20 38 29 20 26 20 30 78 | 66 66 29 3b 0a 20 20 61 | 8) & 0x|ff);.  a|
|00003860| 73 5f 62 61 20 5b 33 5d | 20 3d 20 28 63 68 61 72 |s_ba [3]| = (char|
|00003870| 29 20 28 61 73 5f 6c 20 | 26 20 30 78 66 66 29 3b |) (as_l |& 0xff);|
|00003880| 0a 7d 0a 0c 0a 6c 73 68 | 36 34 20 28 6c 61 72 2c |.}...lsh|64 (lar,|
|00003890| 20 63 6f 75 6e 74 29 20 | 20 20 20 20 20 2f 2a 20 | count) |     /* |
|000038a0| 6c 65 66 74 20 73 68 69 | 66 74 20 61 20 36 34 2d |left shi|ft a 64-|
|000038b0| 62 69 74 20 71 75 61 6e | 74 69 74 79 20 6d 61 69 |bit quan|tity mai|
|000038c0| 6e 74 61 69 6e 65 64 20 | 2a 2f 0a 6c 6f 6e 67 20 |ntained |*/.long |
|000038d0| 20 20 20 6c 61 72 5b 5d | 3b 20 20 20 20 20 20 20 |   lar[]|;       |
|000038e0| 20 20 20 2f 2a 20 69 6e | 20 61 20 32 2d 65 6c 65 |   /* in| a 2-ele|
|000038f0| 6d 65 6e 74 20 6c 6f 6e | 67 20 61 72 72 61 79 2e |ment lon|g array.|
|00003900| 20 41 73 73 75 6d 65 73 | 20 74 68 61 74 20 2a 2f | Assumes| that */|
|00003910| 0a 69 6e 74 20 20 20 20 | 20 63 6f 75 6e 74 3b 20 |.int    | count; |
|00003920| 20 20 20 20 20 20 20 20 | 20 2f 2a 20 61 20 6c 6f |        | /* a lo|
|00003930| 6e 67 20 68 61 73 20 61 | 74 20 6c 65 61 73 74 20 |ng has a|t least |
|00003940| 33 32 20 62 69 74 73 20 | 2a 2f 0a 7b 0a 20 20 69 |32 bits |*/.{.  i|
|00003950| 6e 74 20 20 20 69 3b 20 | 0a 20 20 6c 6f 6e 67 20 |nt   i; |.  long |
|00003960| 20 74 3b 0a 0a 20 20 66 | 6f 72 20 28 69 20 3d 20 | t;..  f|or (i = |
|00003970| 30 3b 20 69 20 3c 20 63 | 6f 75 6e 74 3b 20 69 2b |0; i < c|ount; i+|
|00003980| 2b 29 0a 20 20 7b 0a 20 | 20 20 20 74 20 3d 20 28 |+).  {. |   t = (|
|00003990| 6c 61 72 20 5b 31 5d 20 | 3e 3e 20 33 31 29 20 26 |lar [1] |>> 31) &|
|000039a0| 20 30 78 31 6c 3b 0a 20 | 20 20 20 6c 61 72 20 5b | 0x1l;. |   lar [|
|000039b0| 31 5d 20 3c 3c 3d 20 31 | 3b 0a 20 20 20 20 6c 61 |1] <<= 1|;.    la|
|000039c0| 72 20 5b 30 5d 20 3c 3c | 3d 20 31 3b 0a 20 20 20 |r [0] <<|= 1;.   |
|000039d0| 20 6c 61 72 20 5b 30 5d | 20 7c 3d 20 74 3b 0a 20 | lar [0]| |= t;. |
|000039e0| 20 7d 20 20 0a 20 20 6c | 61 72 20 5b 30 5d 20 26 | }  .  l|ar [0] &|
|000039f0| 3d 20 30 78 66 66 66 66 | 66 66 66 66 6c 3b 0a 20 |= 0xffff|ffffl;. |
|00003a00| 20 6c 61 72 20 5b 31 5d | 20 26 3d 20 30 78 66 66 | lar [1]| &= 0xff|
|00003a10| 66 66 66 66 66 66 6c 3b | 0a 7d 0a 0a 72 73 68 36 |ffffffl;|.}..rsh6|
|00003a20| 34 20 28 6c 61 72 2c 20 | 63 6f 75 6e 74 29 20 20 |4 (lar, |count)  |
|00003a30| 20 20 20 20 2f 2a 20 72 | 69 67 68 74 20 73 68 69 |    /* r|ight shi|
|00003a40| 66 74 20 61 20 36 34 2d | 62 69 74 20 71 75 61 6e |ft a 64-|bit quan|
|00003a50| 74 69 74 79 20 6d 61 69 | 6e 74 61 69 6e 65 64 20 |tity mai|ntained |
|00003a60| 2a 2f 0a 6c 6f 6e 67 20 | 20 20 20 6c 61 72 5b 5d |*/.long |   lar[]|
|00003a70| 3b 20 20 20 20 20 20 20 | 20 20 20 2f 2a 20 69 6e |;       |   /* in|
|00003a80| 20 61 20 32 2d 65 6c 65 | 6d 65 6e 74 20 6c 6f 6e | a 2-ele|ment lon|
|00003a90| 67 20 61 72 72 61 79 2e | 20 41 73 73 75 6d 65 73 |g array.| Assumes|
|00003aa0| 20 74 68 61 74 20 2a 2f | 0a 69 6e 74 20 20 20 20 | that */|.int    |
|00003ab0| 20 63 6f 75 6e 74 3b 20 | 20 20 20 20 20 20 20 20 | count; |        |
|00003ac0| 20 2f 2a 20 61 20 6c 6f | 6e 67 20 68 61 73 20 61 | /* a lo|ng has a|
|00003ad0| 74 20 6c 65 61 73 74 20 | 33 32 20 62 69 74 73 20 |t least |32 bits |
|00003ae0| 2a 2f 0a 7b 0a 20 20 69 | 6e 74 20 20 20 69 3b 20 |*/.{.  i|nt   i; |
|00003af0| 0a 20 20 6c 6f 6e 67 20 | 20 74 3b 0a 0a 20 20 66 |.  long | t;..  f|
|00003b00| 6f 72 20 28 69 20 3d 20 | 30 3b 20 69 20 3c 20 63 |or (i = |0; i < c|
|00003b10| 6f 75 6e 74 3b 20 69 2b | 2b 29 0a 20 20 7b 0a 20 |ount; i+|+).  {. |
|00003b20| 20 20 20 74 20 3d 20 6c | 61 72 20 5b 30 5d 20 26 |   t = l|ar [0] &|
|00003b30| 20 30 78 31 6c 3b 0a 20 | 20 20 20 6c 61 72 20 5b | 0x1l;. |   lar [|
|00003b40| 31 5d 20 3e 3e 3d 20 31 | 3b 0a 20 20 20 20 6c 61 |1] >>= 1|;.    la|
|00003b50| 72 20 5b 30 5d 20 3e 3e | 3d 20 31 3b 0a 20 20 20 |r [0] >>|= 1;.   |
|00003b60| 20 6c 61 72 20 5b 31 5d | 20 7c 3d 20 28 74 20 3c | lar [1]| |= (t <|
|00003b70| 3c 20 33 31 29 3b 0a 20 | 20 7d 20 20 0a 7d 0a 0a |< 31);. | }  .}..|
|00003b80| 72 70 6c 72 36 34 20 28 | 62 61 73 65 2c 20 6d 6f |rplr64 (|base, mo|
|00003b90| 64 72 2c 20 6e 62 69 74 | 73 29 20 20 20 20 20 20 |dr, nbit|s)      |
|00003ba0| 2f 2a 20 72 65 70 6c 61 | 63 65 20 72 69 67 68 74 |/* repla|ce right|
|00003bb0| 6d 6f 73 74 20 6e 62 69 | 74 73 20 6f 66 20 62 61 |most nbi|ts of ba|
|00003bc0| 73 65 20 2a 2f 0a 6c 6f | 6e 67 20 20 20 20 62 61 |se */.lo|ng    ba|
|00003bd0| 73 65 5b 5d 3b 20 20 20 | 20 20 20 20 20 20 20 20 |se[];   |        |
|00003be0| 20 20 20 20 20 20 2f 2a | 20 28 36 34 2d 62 69 74 |      /*| (64-bit|
|00003bf0| 20 71 74 79 20 69 6e 20 | 32 2d 65 6c 6d 74 20 6c | qty in |2-elmt l|
|00003c00| 6f 6e 67 20 61 72 72 61 | 79 29 20 2a 2f 0a 6c 6f |ong arra|y) */.lo|
|00003c10| 6e 67 20 20 20 20 6d 6f | 64 72 5b 5d 3b 20 20 20 |ng    mo|dr[];   |
|00003c20| 20 20 20 20 20 20 20 20 | 20 20 20 20 20 20 2f 2a |        |      /*|
|00003c30| 20 77 69 74 68 20 63 6f | 72 72 65 73 70 6f 6e 64 | with co|rrespond|
|00003c40| 69 6e 67 20 62 69 74 73 | 20 66 72 6f 6d 20 6d 6f |ing bits| from mo|
|00003c50| 64 72 20 2a 2f 0a 69 6e | 74 20 20 20 20 20 6e 62 |dr */.in|t     nb|
|00003c60| 69 74 73 3b 0a 7b 20 20 | 20 20 20 20 20 2f 2a 20 |its;.{  |     /* |
|00003c70| 41 73 73 75 6d 65 73 20 | 6c 6f 6e 67 73 20 61 72 |Assumes |longs ar|
|00003c80| 65 20 33 32 20 62 69 74 | 73 20 6f 72 20 6d 6f 72 |e 32 bit|s or mor|
|00003c90| 65 20 2a 2f 0a 20 20 6c | 6f 6e 67 20 20 6d 61 73 |e */.  l|ong  mas|
|00003ca0| 6b 3b 0a 20 20 6c 6f 6e | 67 20 20 6c 6d 6f 64 3b |k;.  lon|g  lmod;|
|00003cb0| 20 20 20 2f 2a 20 6c 6f | 63 61 6c 20 63 6f 70 79 |   /* lo|cal copy|
|00003cc0| 20 6f 66 20 6d 6f 64 72 | 20 77 6f 72 64 20 2a 2f | of modr| word */|
|00003cd0| 0a 0a 20 20 6d 61 73 6b | 20 3d 20 28 6e 62 69 74 |..  mask| = (nbit|
|00003ce0| 73 20 3e 3d 20 33 32 29 | 20 3f 20 30 78 66 66 66 |s >= 32)| ? 0xfff|
|00003cf0| 66 66 66 66 66 6c 20 3a | 20 28 28 30 78 31 6c 20 |fffffl :| ((0x1l |
|00003d00| 3c 3c 20 6e 62 69 74 73 | 29 20 2d 20 31 29 3b 0a |<< nbits|) - 1);.|
|00003d10| 2f 2a 20 20 6d 61 73 6b | 20 3d 20 28 30 78 31 6c |/*  mask| = (0x1l|
|00003d20| 20 3c 3c 20 28 28 6e 62 | 69 74 73 20 3e 20 33 32 | << ((nb|its > 32|
|00003d30| 29 20 3f 20 33 32 20 3a | 20 6e 62 69 74 73 29 29 |) ? 32 :| nbits))|
|00003d40| 20 2d 20 31 3b 20 2a 2f | 0a 20 20 62 61 73 65 20 | - 1; */|.  base |
|00003d50| 5b 31 5d 20 26 3d 20 7e | 6d 61 73 6b 3b 20 20 20 |[1] &= ~|mask;   |
|00003d60| 20 2f 2a 20 77 69 70 65 | 20 6f 75 74 20 65 78 69 | /* wipe| out exi|
|00003d70| 73 74 69 6e 67 20 6c 6f | 77 20 62 69 74 73 20 2a |sting lo|w bits *|
|00003d80| 2f 0a 20 20 6c 6d 6f 64 | 20 3d 20 6d 6f 64 72 20 |/.  lmod| = modr |
|00003d90| 5b 31 5d 20 26 20 6d 61 | 73 6b 3b 0a 20 20 62 61 |[1] & ma|sk;.  ba|
|00003da0| 73 65 20 5b 31 5d 20 7c | 3d 20 6c 6d 6f 64 3b 0a |se [1] ||= lmod;.|
|00003db0| 0a 20 20 6e 62 69 74 73 | 20 2d 3d 20 33 32 3b 0a |.  nbits| -= 32;.|
|00003dc0| 20 20 69 66 20 28 6e 62 | 69 74 73 20 3c 3d 20 30 |  if (nb|its <= 0|
|00003dd0| 29 20 72 65 74 75 72 6e | 3b 0a 20 20 0a 20 20 6d |) return|;.  .  m|
|00003de0| 61 73 6b 20 3d 20 28 30 | 78 31 6c 20 3c 3c 20 6e |ask = (0|x1l << n|
|00003df0| 62 69 74 73 29 20 2d 20 | 31 3b 0a 20 20 62 61 73 |bits) - |1;.  bas|
|00003e00| 65 20 5b 30 5d 20 26 3d | 20 7e 6d 61 73 6b 3b 0a |e [0] &=| ~mask;.|
|00003e10| 20 20 6c 6d 6f 64 20 3d | 20 6d 6f 64 72 20 5b 30 |  lmod =| modr [0|
|00003e20| 5d 20 26 20 6d 61 73 6b | 3b 0a 20 20 62 61 73 65 |] & mask|;.  base|
|00003e30| 20 5b 30 5d 20 7c 3d 20 | 6c 6d 6f 64 3b 0a 7d 0a | [0] |= |lmod;.}.|
|00003e40| 0a 63 70 79 36 34 20 28 | 73 72 63 2c 20 64 65 73 |.cpy64 (|src, des|
|00003e50| 74 29 20 20 20 20 20 20 | 20 2f 2a 20 63 6f 70 79 |t)      | /* copy|
|00003e60| 20 73 72 63 20 32 2d 65 | 6c 6d 74 20 6c 6f 6e 67 | src 2-e|lmt long|
|00003e70| 20 61 72 72 61 79 20 74 | 6f 20 64 65 73 74 20 2a | array t|o dest *|
|00003e80| 2f 0a 6c 6f 6e 67 20 20 | 20 20 73 72 63 5b 5d 3b |/.long  |  src[];|
|00003e90| 0a 6c 6f 6e 67 20 20 20 | 20 64 65 73 74 5b 5d 3b |.long   | dest[];|
|00003ea0| 0a 7b 0a 20 20 64 65 73 | 74 20 5b 30 5d 20 3d 20 |.{.  des|t [0] = |
|00003eb0| 73 72 63 20 5b 30 5d 3b | 0a 20 20 64 65 73 74 20 |src [0];|.  dest |
|00003ec0| 5b 31 5d 20 3d 20 73 72 | 63 20 5b 31 5d 3b 0a 7d |[1] = sr|c [1];.}|
|00003ed0| 0a 0c 0a 23 64 65 66 69 | 6e 65 20 45 43 42 20 20 |...#defi|ne ECB  |
|00003ee0| 20 20 20 31 0a 23 64 65 | 66 69 6e 65 20 43 42 43 |   1.#de|fine CBC|
|00003ef0| 20 20 20 20 20 45 43 42 | 2b 31 0a 23 64 65 66 69 |     ECB|+1.#defi|
|00003f00| 6e 65 20 4f 46 42 20 20 | 20 20 20 43 42 43 2b 31 |ne OFB  |   CBC+1|
|00003f10| 0a 23 64 65 66 69 6e 65 | 20 43 46 42 20 20 20 20 |.#define| CFB    |
|00003f20| 20 4f 46 42 2b 31 0a 0a | 6d 61 69 6e 20 28 61 72 | OFB+1..|main (ar|
|00003f30| 67 63 2c 61 72 67 76 29 | 0a 69 6e 74 20 20 20 20 |gc,argv)|.int    |
|00003f40| 20 61 72 67 63 3b 0a 63 | 68 61 72 20 20 20 20 2a | argc;.c|har    *|
|00003f50| 61 72 67 76 20 5b 5d 3b | 0a 7b 0a 20 20 69 6e 74 |argv [];|.{.  int|
|00003f60| 20 20 20 61 72 67 6e 3b | 0a 20 20 69 6e 74 20 20 |   argn;|.  int  |
|00003f70| 20 64 6d 6f 64 65 3b 0a | 20 20 69 6e 74 20 20 20 | dmode;.|  int   |
|00003f80| 65 6f 66 79 65 74 20 3d | 20 46 41 4c 53 45 3b 20 |eofyet =| FALSE; |
|00003f90| 2f 2a 20 77 69 6c 6c 20 | 73 65 74 20 74 6f 20 54 |/* will |set to T|
|00003fa0| 52 55 45 20 77 68 65 6e | 20 65 6e 64 20 6f 66 20 |RUE when| end of |
|00003fb0| 69 6e 70 75 74 20 2a 2f | 0a 20 20 69 6e 74 20 20 |input */|.  int  |
|00003fc0| 20 71 75 61 6e 74 20 3d | 20 30 3b 20 20 20 20 20 | quant =| 0;     |
|00003fd0| 20 2f 2a 20 71 75 61 6e | 74 75 6d 20 73 69 7a 65 | /* quan|tum size|
|00003fe0| 20 28 69 6e 20 62 69 74 | 73 29 20 66 6f 72 20 73 | (in bit|s) for s|
|00003ff0| 65 6c 65 63 74 65 64 20 | 6d 6f 64 65 20 2a 2f 0a |elected |mode */.|
|00004000| 20 20 69 6e 74 20 20 20 | 66 6c 77 69 64 3b 20 20 |  int   |flwid;  |
|00004010| 20 20 20 20 20 20 20 20 | 2f 2a 20 73 69 7a 65 20 |        |/* size |
|00004020| 74 6f 20 64 69 73 70 6c | 61 79 20 61 20 36 34 2d |to displ|ay a 64-|
|00004030| 62 69 74 20 63 68 75 6e | 6b 20 6f 66 20 70 74 20 |bit chun|k of pt |
|00004040| 6f 72 20 63 74 20 2a 2f | 0a 20 20 69 6e 74 20 20 |or ct */|.  int  |
|00004050| 20 69 2c 20 6a 3b 0a 20 | 20 6c 6f 6e 67 20 20 69 | i, j;. | long  i|
|00004060| 76 20 5b 32 5d 2c 20 6b | 65 79 6c 20 5b 32 5d 3b |v [2], k|eyl [2];|
|00004070| 0a 0a 20 20 75 6e 73 69 | 67 6e 65 64 20 20 20 20 |..  unsi|gned    |
|00004080| 20 20 69 6e 6b 65 79 20 | 5b 38 5d 3b 0a 20 20 63 |  inkey |[8];.  c|
|00004090| 68 61 72 20 20 69 6e 6b | 65 79 63 20 5b 38 5d 3b |har  ink|eyc [8];|
|000040a0| 20 0a 20 20 63 68 61 72 | 20 20 69 6e 62 62 75 66 | .  char|  inbbuf|
|000040b0| 20 5b 38 5d 2c 20 6f 74 | 62 62 75 66 20 5b 38 5d | [8], ot|bbuf [8]|
|000040c0| 3b 0a 20 20 63 68 61 72 | 20 20 69 70 72 6c 69 6e |;.  char|  iprlin|
|000040d0| 65 20 5b 38 30 5d 2c 20 | 69 68 78 6c 69 6e 65 20 |e [80], |ihxline |
|000040e0| 5b 38 30 5d 2c 20 6f 68 | 78 6c 69 6e 65 20 5b 38 |[80], oh|xline [8|
|000040f0| 30 5d 3b 0a 20 20 6c 6f | 6e 67 20 20 20 20 20 20 |0];.  lo|ng      |
|00004100| 6b 73 20 5b 31 36 5d 20 | 5b 32 5d 3b 0a 0a 20 20 |ks [16] |[2];..  |
|00004110| 6c 6f 6e 67 20 70 6c 61 | 69 6e 20 5b 32 5d 2c 20 |long pla|in [2], |
|00004120| 63 72 79 70 74 20 5b 32 | 5d 2c 20 63 70 72 62 75 |crypt [2|], cprbu|
|00004130| 66 20 5b 32 5d 2c 20 63 | 69 70 68 65 72 20 5b 32 |f [2], c|ipher [2|
|00004140| 5d 3b 0a 0a 20 20 2f 2a | 20 64 65 66 61 75 6c 74 |];..  /*| default|
|00004150| 20 6b 65 79 20 61 6e 64 | 20 49 56 20 74 6f 20 4e | key and| IV to N|
|00004160| 42 53 20 73 61 6d 70 6c | 65 20 76 61 6c 75 65 73 |BS sampl|e values|
|00004170| 20 2a 2f 0a 20 20 6b 65 | 79 6c 20 5b 30 5d 20 3d | */.  ke|yl [0] =|
|00004180| 20 30 78 30 31 32 33 34 | 35 36 37 6c 3b 0a 20 20 | 0x01234|567l;.  |
|00004190| 6b 65 79 6c 20 5b 31 5d | 20 3d 20 30 78 38 39 61 |keyl [1]| = 0x89a|
|000041a0| 62 63 64 65 66 6c 3b 0a | 20 20 69 76 20 5b 30 5d |bcdefl;.|  iv [0]|
|000041b0| 20 3d 20 30 78 31 32 33 | 34 35 36 37 38 6c 3b 0a | = 0x123|45678l;.|
|000041c0| 20 20 69 76 20 5b 31 5d | 20 3d 20 30 78 39 30 61 |  iv [1]| = 0x90a|
|000041d0| 62 63 64 65 66 6c 3b 0a | 0a 20 20 2f 2a 20 73 63 |bcdefl;.|.  /* sc|
|000041e0| 61 6e 20 74 68 65 20 63 | 6f 6d 6d 61 6e 64 20 6c |an the c|ommand l|
|000041f0| 69 6e 65 20 2a 2f 0a 20 | 20 66 6f 72 20 28 61 72 |ine */. | for (ar|
|00004200| 67 6e 20 3d 20 31 3b 20 | 61 72 67 6e 20 3c 3d 20 |gn = 1; |argn <= |
|00004210| 61 72 67 63 3b 20 61 72 | 67 6e 2b 2b 29 0a 20 20 |argc; ar|gn++).  |
|00004220| 7b 0a 20 20 20 20 69 66 | 20 28 73 65 71 5f 6e 6f |{.    if| (seq_no|
|00004230| 63 61 73 65 20 28 61 72 | 67 76 5b 61 72 67 6e 5d |case (ar|gv[argn]|
|00004240| 2c 20 22 2d 6d 22 29 29 | 20 2f 2a 20 6d 6f 64 65 |, "-m"))| /* mode|
|00004250| 20 73 70 65 63 69 66 69 | 65 72 20 2a 2f 0a 20 20 | specifi|er */.  |
|00004260| 20 20 7b 20 20 2f 2a 20 | 6f 6e 65 20 73 74 72 69 |  {  /* |one stri|
|00004270| 6e 67 20 61 72 67 75 6d | 65 6e 74 20 65 78 70 65 |ng argum|ent expe|
|00004280| 63 74 65 64 20 2a 2f 0a | 20 20 20 20 20 20 61 72 |cted */.|      ar|
|00004290| 67 6e 2b 2b 3b 0a 20 20 | 20 20 20 20 69 66 20 28 |gn++;.  |    if (|
|000042a0| 73 65 71 5f 6e 6f 63 61 | 73 65 20 28 61 72 67 76 |seq_noca|se (argv|
|000042b0| 5b 61 72 67 6e 5d 2c 20 | 22 65 63 62 22 29 29 20 |[argn], |"ecb")) |
|000042c0| 0a 20 20 20 20 20 20 7b | 0a 20 20 20 20 20 20 20 |.      {|.       |
|000042d0| 20 64 6d 6f 64 65 20 3d | 20 45 43 42 3b 20 71 75 | dmode =| ECB; qu|
|000042e0| 61 6e 74 20 3d 20 36 34 | 3b 0a 20 20 20 20 20 20 |ant = 64|;.      |
|000042f0| 7d 0a 20 20 20 20 20 20 | 65 6c 73 65 20 69 66 20 |}.      |else if |
|00004300| 28 73 65 71 5f 6e 6f 63 | 61 73 65 20 28 61 72 67 |(seq_noc|ase (arg|
|00004310| 76 5b 61 72 67 6e 5d 2c | 20 22 63 62 63 22 29 29 |v[argn],| "cbc"))|
|00004320| 20 0a 20 20 20 20 20 20 | 7b 0a 20 20 20 20 20 20 | .      |{.      |
|00004330| 20 20 64 6d 6f 64 65 20 | 3d 20 43 42 43 3b 20 71 |  dmode |= CBC; q|
|00004340| 75 61 6e 74 20 3d 20 36 | 34 3b 0a 20 20 20 20 20 |uant = 6|4;.     |
|00004350| 20 7d 0a 20 20 20 20 20 | 20 65 6c 73 65 20 69 66 | }.     | else if|
|00004360| 20 28 73 65 71 5f 6e 6f | 63 61 73 65 20 28 61 72 | (seq_no|case (ar|
|00004370| 67 76 5b 61 72 67 6e 5d | 2c 20 22 6f 66 62 22 29 |gv[argn]|, "ofb")|
|00004380| 29 20 0a 20 20 20 20 20 | 20 7b 0a 20 20 20 20 20 |) .     | {.     |
|00004390| 20 20 20 64 6d 6f 64 65 | 20 3d 20 4f 46 42 3b 20 |   dmode| = OFB; |
|000043a0| 69 66 20 28 71 75 61 6e | 74 20 3d 3d 20 30 29 20 |if (quan|t == 0) |
|000043b0| 71 75 61 6e 74 20 3d 20 | 36 34 3b 20 2f 2a 20 6d |quant = |64; /* m|
|000043c0| 61 79 20 62 65 20 6f 76 | 65 72 72 69 64 64 65 6e |ay be ov|erridden|
|000043d0| 20 2a 2f 0a 20 20 20 20 | 20 20 7d 0a 20 20 20 20 | */.    |  }.    |
|000043e0| 20 20 65 6c 73 65 20 69 | 66 20 28 73 65 71 5f 6e |  else i|f (seq_n|
|000043f0| 6f 63 61 73 65 20 28 61 | 72 67 76 5b 61 72 67 6e |ocase (a|rgv[argn|
|00004400| 5d 2c 20 22 63 66 62 22 | 29 29 20 0a 20 20 20 20 |], "cfb"|)) .    |
|00004410| 20 20 7b 0a 20 20 20 20 | 20 20 20 20 64 6d 6f 64 |  {.    |    dmod|
|00004420| 65 20 3d 20 43 46 42 3b | 20 69 66 20 28 71 75 61 |e = CFB;| if (qua|
|00004430| 6e 74 20 3d 3d 20 30 29 | 20 71 75 61 6e 74 20 3d |nt == 0)| quant =|
|00004440| 20 36 34 3b 20 2f 2a 20 | 6d 61 79 20 62 65 20 6f | 64; /* |may be o|
|00004450| 76 65 72 72 69 64 64 65 | 6e 20 2a 2f 0a 20 20 20 |verridde|n */.   |
|00004460| 20 20 20 7d 0a 20 20 20 | 20 7d 0a 20 20 20 20 65 |   }.   | }.    e|
|00004470| 6c 73 65 20 69 66 20 28 | 73 65 71 5f 6e 6f 63 61 |lse if (|seq_noca|
|00004480| 73 65 20 28 61 72 67 76 | 5b 61 72 67 6e 5d 2c 20 |se (argv|[argn], |
|00004490| 22 2d 6b 22 29 29 20 20 | 20 20 2f 2a 20 6b 65 79 |"-k"))  |  /* key|
|000044a0| 20 73 70 65 63 69 66 69 | 65 72 20 2a 2f 0a 20 20 | specifi|er */.  |
|000044b0| 20 20 7b 20 20 2f 2a 20 | 74 77 6f 20 6c 6f 6e 67 |  {  /* |two long|
|000044c0| 20 68 65 78 20 6e 75 6d | 65 72 69 63 73 20 65 78 | hex num|erics ex|
|000044d0| 70 65 63 74 65 64 20 2a | 2f 0a 20 20 20 20 20 20 |pected *|/.      |
|000044e0| 61 72 67 6e 2b 2b 3b 0a | 20 20 20 20 20 20 73 73 |argn++;.|      ss|
|000044f0| 63 61 6e 66 20 28 61 72 | 67 76 5b 61 72 67 6e 5d |canf (ar|gv[argn]|
|00004500| 2c 20 22 25 6c 78 22 2c | 20 26 6b 65 79 6c 20 5b |, "%lx",| &keyl [|
|00004510| 30 5d 29 3b 0a 20 20 20 | 20 20 20 61 72 67 6e 2b |0]);.   |   argn+|
|00004520| 2b 3b 0a 20 20 20 20 20 | 20 73 73 63 61 6e 66 20 |+;.     | sscanf |
|00004530| 28 61 72 67 76 5b 61 72 | 67 6e 5d 2c 20 22 25 6c |(argv[ar|gn], "%l|
|00004540| 78 22 2c 20 26 6b 65 79 | 6c 20 5b 31 5d 29 3b 0a |x", &key|l [1]);.|
|00004550| 20 20 20 20 7d 0a 20 20 | 20 20 65 6c 73 65 20 69 |    }.  |  else i|
|00004560| 66 20 28 73 65 71 5f 6e | 6f 63 61 73 65 20 28 61 |f (seq_n|ocase (a|
|00004570| 72 67 76 5b 61 72 67 6e | 5d 2c 20 22 2d 69 76 22 |rgv[argn|], "-iv"|
|00004580| 29 29 20 20 20 2f 2a 20 | 49 56 20 73 70 65 63 69 |))   /* |IV speci|
|00004590| 66 69 65 72 20 2a 2f 0a | 20 20 20 20 7b 20 20 2f |fier */.|    {  /|
|000045a0| 2a 20 74 77 6f 20 6c 6f | 6e 67 20 68 65 78 20 6e |* two lo|ng hex n|
|000045b0| 75 6d 65 72 69 63 73 20 | 65 78 70 65 63 74 65 64 |umerics |expected|
|000045c0| 20 2a 2f 0a 20 20 20 20 | 20 20 61 72 67 6e 2b 2b | */.    |  argn++|
|000045d0| 3b 0a 20 20 20 20 20 20 | 73 73 63 61 6e 66 20 28 |;.      |sscanf (|
|000045e0| 61 72 67 76 5b 61 72 67 | 6e 5d 2c 20 22 25 6c 78 |argv[arg|n], "%lx|
|000045f0| 22 2c 20 26 69 76 20 5b | 30 5d 29 3b 0a 20 20 20 |", &iv [|0]);.   |
|00004600| 20 20 20 61 72 67 6e 2b | 2b 3b 0a 20 20 20 20 20 |   argn+|+;.     |
|00004610| 20 73 73 63 61 6e 66 20 | 28 61 72 67 76 5b 61 72 | sscanf |(argv[ar|
|00004620| 67 6e 5d 2c 20 22 25 6c | 78 22 2c 20 26 69 76 20 |gn], "%l|x", &iv |
|00004630| 5b 31 5d 29 3b 0a 20 20 | 20 20 7d 0a 20 20 20 20 |[1]);.  |  }.    |
|00004640| 65 6c 73 65 20 69 66 20 | 28 73 65 71 5f 6e 6f 63 |else if |(seq_noc|
|00004650| 61 73 65 20 28 61 72 67 | 76 5b 61 72 67 6e 5d 2c |ase (arg|v[argn],|
|00004660| 20 22 2d 71 22 29 29 20 | 20 20 20 20 2f 2a 20 71 | "-q")) |    /* q|
|00004670| 75 61 6e 74 75 6d 20 73 | 70 65 63 69 66 69 65 72 |uantum s|pecifier|
|00004680| 20 2a 2f 0a 20 20 20 20 | 7b 20 2f 2a 20 6f 6e 65 | */.    |{ /* one|
|00004690| 20 64 65 63 69 6d 61 6c | 20 6e 75 6d 62 65 72 20 | decimal| number |
|000046a0| 65 78 70 65 63 74 65 64 | 20 2a 2f 0a 20 20 20 20 |expected| */.    |
|000046b0| 20 20 61 72 67 6e 2b 2b | 3b 0a 20 20 20 20 20 20 |  argn++|;.      |
|000046c0| 73 73 63 61 6e 66 20 28 | 61 72 67 76 5b 61 72 67 |sscanf (|argv[arg|
|000046d0| 6e 5d 2c 20 22 25 64 22 | 2c 20 26 71 75 61 6e 74 |n], "%d"|, &quant|
|000046e0| 29 3b 0a 20 20 20 20 7d | 0a 20 20 7d 0a 0a 20 20 |);.    }|.  }..  |
|000046f0| 69 66 20 28 28 28 64 6d | 6f 64 65 20 3d 3d 20 45 |if (((dm|ode == E|
|00004700| 43 42 29 20 7c 7c 20 28 | 64 6d 6f 64 65 20 3d 3d |CB) || (|dmode ==|
|00004710| 20 43 42 43 29 29 20 26 | 26 20 28 71 75 61 6e 74 | CBC)) &|& (quant|
|00004720| 20 21 3d 20 36 34 29 29 | 0a 20 20 7b 0a 20 20 20 | != 64))|.  {.   |
|00004730| 20 70 72 69 6e 74 66 20 | 28 22 43 61 6e 27 74 20 | printf |("Can't |
|00004740| 6f 76 65 72 72 69 64 65 | 20 71 75 61 6e 74 75 6d |override| quantum|
|00004750| 20 6f 66 20 36 34 20 66 | 6f 72 20 45 43 42 20 6f | of 64 f|or ECB o|
|00004760| 72 20 43 42 43 20 6d 6f | 64 65 73 2e 2e 2e 20 61 |r CBC mo|des... a|
|00004770| 62 6f 72 74 69 6e 67 5c | 6e 22 29 3b 0a 20 20 20 |borting\|n");.   |
|00004780| 20 65 78 69 74 20 28 31 | 29 3b 0a 20 20 7d 0a 0a | exit (1|);.  }..|
|00004790| 20 20 2f 2a 20 62 75 69 | 6c 64 20 6b 65 79 20 73 |  /* bui|ld key s|
|000047a0| 63 68 65 64 75 6c 65 20 | 28 6f 75 74 73 69 64 65 |chedule |(outside|
|000047b0| 20 73 63 61 6e 6e 65 72 | 2c 20 73 6f 20 64 65 66 | scanner|, so def|
|000047c0| 61 75 6c 74 20 77 6f 72 | 6b 73 29 20 2a 2f 0a 20 |ault wor|ks) */. |
|000047d0| 20 73 70 72 64 6c 74 6f | 62 20 28 6b 65 79 6c 20 | sprdlto|b (keyl |
|000047e0| 5b 30 5d 2c 20 26 20 69 | 6e 6b 65 79 63 20 5b 30 |[0], & i|nkeyc [0|
|000047f0| 5d 29 3b 0a 20 20 73 70 | 72 64 6c 74 6f 62 20 28 |]);.  sp|rdltob (|
|00004800| 6b 65 79 6c 20 5b 31 5d | 2c 20 26 20 69 6e 6b 65 |keyl [1]|, & inke|
|00004810| 79 63 20 5b 34 5d 29 3b | 0a 20 20 66 6f 72 20 28 |yc [4]);|.  for (|
|00004820| 69 20 3d 20 30 3b 20 69 | 20 3c 20 38 3b 20 69 2b |i = 0; i| < 8; i+|
|00004830| 2b 29 20 69 6e 6b 65 79 | 20 5b 69 5d 20 3d 20 28 |+) inkey| [i] = (|
|00004840| 75 6e 73 69 67 6e 65 64 | 29 20 28 69 6e 6b 65 79 |unsigned|) (inkey|
|00004850| 63 20 5b 69 5d 20 26 20 | 30 78 66 66 29 3b 0a 20 |c [i] & |0xff);. |
|00004860| 20 69 66 20 28 6b 73 6d | 61 6b 65 20 28 69 6e 6b | if (ksm|ake (ink|
|00004870| 65 79 2c 20 6b 73 29 20 | 21 3d 20 53 55 43 43 45 |ey, ks) |!= SUCCE|
|00004880| 53 53 29 0a 20 20 7b 0a | 20 20 20 20 70 72 69 6e |SS).  {.|    prin|
|00004890| 74 66 20 28 22 42 61 64 | 20 70 61 72 69 74 79 20 |tf ("Bad| parity |
|000048a0| 6f 6e 20 6b 65 79 2e 2e | 2e 20 61 62 6f 72 74 69 |on key..|. aborti|
|000048b0| 6e 67 2e 2e 2e 5c 6e 22 | 29 3b 0a 20 20 20 20 65 |ng...\n"|);.    e|
|000048c0| 78 69 74 20 28 31 29 3b | 0a 20 20 7d 0a 0a 20 20 |xit (1);|.  }..  |
|000048d0| 70 72 69 6e 74 66 20 28 | 22 4d 6f 64 65 20 69 73 |printf (|"Mode is|
|000048e0| 20 22 29 3b 0a 20 20 73 | 77 69 74 63 68 20 28 64 | ");.  s|witch (d|
|000048f0| 6d 6f 64 65 29 0a 20 20 | 7b 0a 20 20 20 20 63 61 |mode).  |{.    ca|
|00004900| 73 65 20 45 43 42 3a 0a | 20 20 20 20 20 20 70 72 |se ECB:.|      pr|
|00004910| 69 6e 74 66 20 28 22 45 | 43 42 3b 22 29 3b 0a 20 |intf ("E|CB;");. |
|00004920| 20 20 20 20 20 62 72 65 | 61 6b 3b 0a 20 20 20 20 |     bre|ak;.    |
|00004930| 63 61 73 65 20 43 42 43 | 3a 0a 20 20 20 20 20 20 |case CBC|:.      |
|00004940| 70 72 69 6e 74 66 20 28 | 22 43 42 43 3b 22 29 3b |printf (|"CBC;");|
|00004950| 0a 20 20 20 20 20 20 62 | 72 65 61 6b 3b 0a 20 20 |.      b|reak;.  |
|00004960| 20 20 63 61 73 65 20 4f | 46 42 3a 0a 20 20 20 20 |  case O|FB:.    |
|00004970| 20 20 70 72 69 6e 74 66 | 20 28 22 4f 46 42 3b 22 |  printf| ("OFB;"|
|00004980| 29 3b 0a 20 20 20 20 20 | 20 70 72 69 6e 74 66 20 |);.     | printf |
|00004990| 28 22 20 51 75 61 6e 74 | 75 6d 20 69 73 20 25 64 |(" Quant|um is %d|
|000049a0| 3b 22 2c 20 71 75 61 6e | 74 29 3b 0a 20 20 20 20 |;", quan|t);.    |
|000049b0| 20 20 62 72 65 61 6b 3b | 0a 20 20 20 20 63 61 73 |  break;|.    cas|
|000049c0| 65 20 43 46 42 3a 0a 20 | 20 20 20 20 20 70 72 69 |e CFB:. |     pri|
|000049d0| 6e 74 66 20 28 22 43 46 | 42 3b 22 29 3b 0a 20 20 |ntf ("CF|B;");.  |
|000049e0| 20 20 20 20 70 72 69 6e | 74 66 20 28 22 20 51 75 |    prin|tf (" Qu|
|000049f0| 61 6e 74 75 6d 20 69 73 | 20 25 64 3b 22 2c 20 71 |antum is| %d;", q|
|00004a00| 75 61 6e 74 29 3b 0a 20 | 20 20 20 20 20 62 72 65 |uant);. |     bre|
|00004a10| 61 6b 3b 0a 20 20 20 20 | 64 65 66 61 75 6c 74 3a |ak;.    |default:|
|00004a20| 0a 20 20 20 20 20 20 70 | 72 69 6e 74 66 20 28 22 |.      p|rintf ("|
|00004a30| 55 6e 6b 6e 6f 77 6e 3b | 22 29 3b 0a 20 20 20 20 |Unknown;|");.    |
|00004a40| 20 20 62 72 65 61 6b 3b | 0a 20 20 7d 0a 20 20 70 |  break;|.  }.  p|
|00004a50| 72 69 6e 74 66 20 28 22 | 20 4b 65 79 20 69 73 20 |rintf ("| Key is |
|00004a60| 25 6c 78 20 25 6c 78 3b | 22 2c 20 6b 65 79 6c 20 |%lx %lx;|", keyl |
|00004a70| 5b 30 5d 2c 20 6b 65 79 | 6c 20 5b 31 5d 29 3b 0a |[0], key|l [1]);.|
|00004a80| 20 20 69 66 20 28 64 6d | 6f 64 65 20 21 3d 20 45 |  if (dm|ode != E|
|00004a90| 43 42 29 20 70 72 69 6e | 74 66 20 28 22 20 49 56 |CB) prin|tf (" IV|
|00004aa0| 20 69 73 20 25 6c 78 20 | 25 6c 78 3b 22 2c 20 69 | is %lx |%lx;", i|
|00004ab0| 76 20 5b 30 5d 2c 20 69 | 76 20 5b 31 5d 29 3b 0a |v [0], i|v [1]);.|
|00004ac0| 20 20 70 72 69 6e 74 66 | 20 28 22 5c 6e 22 29 3b |  printf| ("\n");|
|00004ad0| 0a 0a 20 20 66 6c 77 69 | 64 20 3d 20 28 38 20 2a |..  flwi|d = (8 *|
|00004ae0| 20 32 29 20 2b 20 31 3b | 20 20 20 20 20 20 2f 2a | 2) + 1;|      /*|
|00004af0| 20 38 20 62 79 74 65 73 | 2c 20 32 20 63 68 61 72 | 8 bytes|, 2 char|
|00004b00| 73 2f 62 79 74 65 2c 20 | 61 6e 64 20 61 20 64 65 |s/byte, |and a de|
|00004b10| 6c 69 6d 69 74 65 72 20 | 2a 2f 0a 0a 20 20 77 68 |limiter |*/..  wh|
|00004b20| 69 6c 65 20 28 65 6f 66 | 79 65 74 20 3d 3d 20 46 |ile (eof|yet == F|
|00004b30| 41 4c 53 45 29 20 20 20 | 20 20 20 20 2f 2a 20 75 |ALSE)   |    /* u|
|00004b40| 6e 74 69 6c 20 45 4f 46 | 20 64 65 74 65 63 74 65 |ntil EOF| detecte|
|00004b50| 64 20 6f 6e 20 69 6e 70 | 75 74 20 2a 2f 0a 20 20 |d on inp|ut */.  |
|00004b60| 7b 0a 20 20 20 20 69 66 | 20 28 64 6d 6f 64 65 20 |{.    if| (dmode |
|00004b70| 3d 3d 20 45 43 42 29 0a | 20 20 20 20 7b 0a 20 20 |== ECB).|    {.  |
|00004b80| 20 20 20 20 66 6f 72 20 | 28 69 20 3d 20 30 3b 20 |    for |(i = 0; |
|00004b90| 69 20 3c 20 34 3b 20 69 | 2b 2b 29 20 20 20 20 20 |i < 4; i|++)     |
|00004ba0| 2f 2a 20 34 20 67 72 6f | 75 70 73 20 6f 6e 20 61 |/* 4 gro|ups on a|
|00004bb0| 20 70 72 69 6e 74 61 62 | 6c 65 20 6c 69 6e 65 20 | printab|le line |
|00004bc0| 2a 2f 0a 20 20 20 20 20 | 20 7b 0a 20 20 20 20 20 |*/.     | {.     |
|00004bd0| 20 20 20 69 66 20 28 54 | 52 55 45 20 3d 3d 20 67 |   if (T|RUE == g|
|00004be0| 5f 69 6e 62 79 74 65 73 | 20 28 38 2c 20 69 6e 62 |_inbytes| (8, inb|
|00004bf0| 62 75 66 29 29 20 65 6f | 66 79 65 74 20 3d 20 54 |buf)) eo|fyet = T|
|00004c00| 52 55 45 3b 0a 20 20 20 | 20 20 20 20 20 64 69 5f |RUE;.   |     di_|
|00004c10| 62 79 74 65 73 20 28 38 | 2c 20 69 6e 62 62 75 66 |bytes (8|, inbbuf|
|00004c20| 2c 20 26 69 70 72 6c 69 | 6e 65 20 5b 66 6c 77 69 |, &iprli|ne [flwi|
|00004c30| 64 2a 69 5d 2c 20 26 69 | 68 78 6c 69 6e 65 20 5b |d*i], &i|hxline [|
|00004c40| 66 6c 77 69 64 2a 69 5d | 29 3b 0a 20 20 20 20 20 |flwid*i]|);.     |
|00004c50| 20 20 20 70 61 63 6b 62 | 74 6f 6c 20 28 26 69 6e |   packb|tol (&in|
|00004c60| 62 62 75 66 5b 30 5d 2c | 20 26 70 6c 61 69 6e 5b |bbuf[0],| &plain[|
|00004c70| 30 5d 29 3b 0a 20 20 20 | 20 20 20 20 20 70 61 63 |0]);.   |     pac|
|00004c80| 6b 62 74 6f 6c 20 28 26 | 69 6e 62 62 75 66 5b 34 |kbtol (&|inbbuf[4|
|00004c90| 5d 2c 20 26 70 6c 61 69 | 6e 5b 31 5d 29 3b 0a 20 |], &plai|n[1]);. |
|00004ca0| 20 20 20 20 20 20 20 64 | 6f 64 65 73 20 28 70 6c |       d|odes (pl|
|00004cb0| 61 69 6e 2c 20 63 72 79 | 70 74 2c 20 45 4e 43 52 |ain, cry|pt, ENCR|
|00004cc0| 59 50 54 2c 20 6b 73 29 | 3b 0a 20 20 20 20 20 20 |YPT, ks)|;.      |
|00004cd0| 20 20 73 70 72 64 6c 74 | 6f 62 20 28 63 72 79 70 |  sprdlt|ob (cryp|
|00004ce0| 74 5b 30 5d 2c 20 26 6f | 74 62 62 75 66 5b 30 5d |t[0], &o|tbbuf[0]|
|00004cf0| 29 3b 0a 20 20 20 20 20 | 20 20 20 73 70 72 64 6c |);.     |   sprdl|
|00004d00| 74 6f 62 20 28 63 72 79 | 70 74 5b 31 5d 2c 20 26 |tob (cry|pt[1], &|
|00004d10| 6f 74 62 62 75 66 5b 34 | 5d 29 3b 0a 20 20 20 20 |otbbuf[4|]);.    |
|00004d20| 20 20 20 20 64 69 5f 62 | 79 74 65 73 20 28 38 2c |    di_b|ytes (8,|
|00004d30| 20 6f 74 62 62 75 66 2c | 20 4e 55 4c 4c 2c 20 26 | otbbuf,| NULL, &|
|00004d40| 6f 68 78 6c 69 6e 65 20 | 5b 66 6c 77 69 64 2a 69 |ohxline |[flwid*i|
|00004d50| 5d 29 3b 0a 09 69 66 20 | 28 54 52 55 45 20 3d 3d |]);..if |(TRUE ==|
|00004d60| 20 65 6f 66 79 65 74 29 | 20 62 72 65 61 6b 3b 0a | eofyet)| break;.|
|00004d70| 20 20 20 20 20 20 7d 0a | 20 20 20 20 7d 0a 20 20 |      }.|    }.  |
|00004d80| 20 20 65 6c 73 65 20 69 | 66 20 28 64 6d 6f 64 65 |  else i|f (dmode|
|00004d90| 20 3d 3d 20 43 42 43 29 | 0a 20 20 20 20 7b 0a 20 | == CBC)|.    {. |
|00004da0| 20 20 20 20 20 66 6f 72 | 20 28 69 20 3d 20 30 3b |     for| (i = 0;|
|00004db0| 20 69 20 3c 20 34 3b 20 | 69 2b 2b 29 20 20 20 20 | i < 4; |i++)    |
|00004dc0| 20 2f 2a 20 34 20 67 72 | 6f 75 70 73 20 6f 6e 20 | /* 4 gr|oups on |
|00004dd0| 61 20 70 72 69 6e 74 61 | 62 6c 65 20 6c 69 6e 65 |a printa|ble line|
|00004de0| 20 2a 2f 0a 20 20 20 20 | 20 20 7b 0a 20 20 20 20 | */.    |  {.    |
|00004df0| 20 20 20 20 69 66 20 28 | 54 52 55 45 20 3d 3d 20 |    if (|TRUE == |
|00004e00| 67 5f 69 6e 62 79 74 65 | 73 20 28 38 2c 20 69 6e |g_inbyte|s (8, in|
|00004e10| 62 62 75 66 29 29 20 65 | 6f 66 79 65 74 20 3d 20 |bbuf)) e|ofyet = |
|00004e20| 54 52 55 45 3b 0a 20 20 | 20 20 20 20 20 20 64 69 |TRUE;.  |      di|
|00004e30| 5f 62 79 74 65 73 20 28 | 38 2c 20 69 6e 62 62 75 |_bytes (|8, inbbu|
|00004e40| 66 2c 20 26 69 70 72 6c | 69 6e 65 20 5b 66 6c 77 |f, &iprl|ine [flw|
|00004e50| 69 64 2a 69 5d 2c 20 26 | 69 68 78 6c 69 6e 65 20 |id*i], &|ihxline |
|00004e60| 5b 66 6c 77 69 64 2a 69 | 5d 29 3b 0a 20 20 20 20 |[flwid*i|]);.    |
|00004e70| 20 20 20 20 70 61 63 6b | 62 74 6f 6c 20 28 26 69 |    pack|btol (&i|
|00004e80| 6e 62 62 75 66 5b 30 5d | 2c 20 26 70 6c 61 69 6e |nbbuf[0]|, &plain|
|00004e90| 5b 30 5d 29 3b 0a 20 20 | 20 20 20 20 20 20 70 61 |[0]);.  |      pa|
|00004ea0| 63 6b 62 74 6f 6c 20 28 | 26 69 6e 62 62 75 66 5b |ckbtol (|&inbbuf[|
|00004eb0| 34 5d 2c 20 26 70 6c 61 | 69 6e 5b 31 5d 29 3b 0a |4], &pla|in[1]);.|
|00004ec0| 09 70 6c 61 69 6e 20 5b | 30 5d 20 5e 3d 20 69 76 |.plain [|0] ^= iv|
|00004ed0| 20 5b 30 5d 3b 20 20 20 | 20 2f 2a 20 58 4f 52 20 | [0];   | /* XOR |
|00004ee0| 49 56 20 77 69 74 68 20 | 69 6e 70 75 74 20 70 6c |IV with |input pl|
|00004ef0| 61 69 6e 74 65 78 74 20 | 2a 2f 0a 20 20 20 20 20 |aintext |*/.     |
|00004f00| 20 20 20 70 6c 61 69 6e | 20 5b 31 5d 20 5e 3d 20 |   plain| [1] ^= |
|00004f10| 69 76 20 5b 31 5d 3b 0a | 20 20 20 20 20 20 20 20 |iv [1];.|        |
|00004f20| 64 6f 64 65 73 20 28 70 | 6c 61 69 6e 2c 20 63 72 |dodes (p|lain, cr|
|00004f30| 79 70 74 2c 20 45 4e 43 | 52 59 50 54 2c 20 6b 73 |ypt, ENC|RYPT, ks|
|00004f40| 29 3b 0a 20 20 20 20 20 | 20 20 20 73 70 72 64 6c |);.     |   sprdl|
|00004f50| 74 6f 62 20 28 63 72 79 | 70 74 5b 30 5d 2c 20 26 |tob (cry|pt[0], &|
|00004f60| 6f 74 62 62 75 66 5b 30 | 5d 29 3b 0a 20 20 20 20 |otbbuf[0|]);.    |
|00004f70| 20 20 20 20 73 70 72 64 | 6c 74 6f 62 20 28 63 72 |    sprd|ltob (cr|
|00004f80| 79 70 74 5b 31 5d 2c 20 | 26 6f 74 62 62 75 66 5b |ypt[1], |&otbbuf[|
|00004f90| 34 5d 29 3b 0a 20 20 20 | 20 20 20 20 20 64 69 5f |4]);.   |     di_|
|00004fa0| 62 79 74 65 73 20 28 38 | 2c 20 6f 74 62 62 75 66 |bytes (8|, otbbuf|
|00004fb0| 2c 20 4e 55 4c 4c 2c 20 | 26 6f 68 78 6c 69 6e 65 |, NULL, |&ohxline|
|00004fc0| 20 5b 66 6c 77 69 64 2a | 69 5d 29 3b 0a 09 69 76 | [flwid*|i]);..iv|
|00004fd0| 20 5b 30 5d 20 3d 20 63 | 72 79 70 74 20 5b 30 5d | [0] = c|rypt [0]|
|00004fe0| 3b 20 20 20 20 20 2f 2a | 20 75 73 65 20 63 69 70 |;     /*| use cip|
|00004ff0| 68 65 72 74 65 78 74 20 | 6f 75 74 70 75 74 20 61 |hertext |output a|
|00005000| 73 20 6e 65 78 74 20 49 | 56 20 2a 2f 0a 20 20 20 |s next I|V */.   |
|00005010| 20 20 20 20 20 69 76 20 | 5b 31 5d 20 3d 20 63 72 |     iv |[1] = cr|
|00005020| 79 70 74 20 5b 31 5d 3b | 0a 09 69 66 20 28 54 52 |ypt [1];|..if (TR|
|00005030| 55 45 20 3d 3d 20 65 6f | 66 79 65 74 29 20 62 72 |UE == eo|fyet) br|
|00005040| 65 61 6b 3b 0a 20 20 20 | 20 20 20 7d 0a 20 20 20 |eak;.   |   }.   |
|00005050| 20 7d 0a 20 20 20 20 65 | 6c 73 65 20 69 66 20 28 | }.    e|lse if (|
|00005060| 64 6d 6f 64 65 20 3d 3d | 20 43 46 42 29 0a 20 20 |dmode ==| CFB).  |
|00005070| 20 20 7b 0a 20 20 20 20 | 20 20 66 6f 72 20 28 69 |  {.    |  for (i|
|00005080| 20 3d 20 30 3b 20 69 20 | 3c 20 34 3b 20 69 2b 2b | = 0; i |< 4; i++|
|00005090| 29 20 20 20 20 20 2f 2a | 20 34 20 67 72 6f 75 70 |)     /*| 4 group|
|000050a0| 73 20 6f 6e 20 61 20 70 | 72 69 6e 74 61 62 6c 65 |s on a p|rintable|
|000050b0| 20 6c 69 6e 65 20 2a 2f | 0a 20 20 20 20 20 20 2f | line */|.      /|
|000050c0| 2a 20 64 6f 65 73 20 66 | 69 6c 65 20 72 65 61 64 |* does f|ile read|
|000050d0| 20 61 6e 64 20 64 69 73 | 70 6c 61 79 20 69 6e 20 | and dis|play in |
|000050e0| 36 34 2d 62 69 74 20 75 | 6e 69 74 73 20 72 65 67 |64-bit u|nits reg|
|000050f0| 61 72 64 6c 65 73 73 20 | 6f 66 20 71 75 61 6e 74 |ardless |of quant|
|00005100| 75 6d 20 2a 2f 0a 20 20 | 20 20 20 20 7b 0a 20 20 |um */.  |    {.  |
|00005110| 20 20 20 20 20 20 69 66 | 20 28 54 52 55 45 20 3d |      if| (TRUE =|
|00005120| 3d 20 67 5f 69 6e 62 79 | 74 65 73 20 28 38 2c 20 |= g_inby|tes (8, |
|00005130| 69 6e 62 62 75 66 29 29 | 20 65 6f 66 79 65 74 20 |inbbuf))| eofyet |
|00005140| 3d 20 54 52 55 45 3b 0a | 20 20 20 20 20 20 20 20 |= TRUE;.|        |
|00005150| 64 69 5f 62 79 74 65 73 | 20 28 38 2c 20 69 6e 62 |di_bytes| (8, inb|
|00005160| 62 75 66 2c 20 26 69 70 | 72 6c 69 6e 65 20 5b 66 |buf, &ip|rline [f|
|00005170| 6c 77 69 64 2a 69 5d 2c | 20 26 69 68 78 6c 69 6e |lwid*i],| &ihxlin|
|00005180| 65 20 5b 66 6c 77 69 64 | 2a 69 5d 29 3b 0a 20 20 |e [flwid|*i]);.  |
|00005190| 20 20 20 20 20 20 70 61 | 63 6b 62 74 6f 6c 20 28 |      pa|ckbtol (|
|000051a0| 26 69 6e 62 62 75 66 5b | 30 5d 2c 20 26 70 6c 61 |&inbbuf[|0], &pla|
|000051b0| 69 6e 5b 30 5d 29 3b 0a | 20 20 20 20 20 20 20 20 |in[0]);.|        |
|000051c0| 70 61 63 6b 62 74 6f 6c | 20 28 26 69 6e 62 62 75 |packbtol| (&inbbu|
|000051d0| 66 5b 34 5d 2c 20 26 70 | 6c 61 69 6e 5b 31 5d 29 |f[4], &p|lain[1])|
|000051e0| 3b 0a 09 66 6f 72 20 28 | 6a 20 3d 20 30 3b 20 6a |;..for (|j = 0; j|
|000051f0| 20 3c 20 36 34 3b 20 6a | 2b 3d 71 75 61 6e 74 29 | < 64; j|+=quant)|
|00005200| 0a 09 7b 0a 20 20 20 20 | 20 20 20 20 20 20 64 6f |..{.    |      do|
|00005210| 64 65 73 20 28 69 76 2c | 20 63 72 79 70 74 2c 20 |des (iv,| crypt, |
|00005220| 45 4e 43 52 59 50 54 2c | 20 6b 73 29 3b 0a 09 20 |ENCRYPT,| ks);.. |
|00005230| 20 72 73 68 36 34 20 28 | 63 72 79 70 74 2c 20 36 | rsh64 (|crypt, 6|
|00005240| 34 2d 71 75 61 6e 74 29 | 3b 20 20 20 20 20 20 2f |4-quant)|;      /|
|00005250| 2a 20 72 69 67 68 74 2d | 61 6c 69 67 6e 20 61 63 |* right-|align ac|
|00005260| 74 69 76 65 20 44 45 53 | 20 6f 75 74 70 75 74 20 |tive DES| output |
|00005270| 62 69 74 73 20 2a 2f 0a | 09 20 20 63 70 79 36 34 |bits */.|.  cpy64|
|00005280| 20 28 70 6c 61 69 6e 2c | 20 63 70 72 62 75 66 29 | (plain,| cprbuf)|
|00005290| 3b 20 20 20 20 20 20 20 | 20 2f 2a 20 63 6f 70 79 |;       | /* copy|
|000052a0| 20 70 6c 61 69 6e 74 65 | 78 74 20 74 6f 20 73 63 | plainte|xt to sc|
|000052b0| 72 61 74 63 68 20 2a 2f | 0a 09 20 20 72 73 68 36 |ratch */|..  rsh6|
|000052c0| 34 20 28 63 70 72 62 75 | 66 2c 20 36 34 2d 28 71 |4 (cprbu|f, 64-(q|
|000052d0| 75 61 6e 74 2b 6a 29 29 | 3b 20 2f 2a 20 72 69 67 |uant+j))|; /* rig|
|000052e0| 68 74 2d 61 6c 69 67 6e | 20 61 63 74 69 76 65 20 |ht-align| active |
|000052f0| 70 6c 61 69 6e 74 65 78 | 74 20 62 69 74 73 20 2a |plaintex|t bits *|
|00005300| 2f 0a 09 20 20 2f 2a 20 | 58 4f 52 20 74 68 65 6d |/..  /* |XOR them|
|00005310| 20 69 6e 74 6f 20 44 45 | 53 20 6f 75 74 70 75 74 | into DE|S output|
|00005320| 20 2a 2f 0a 09 20 20 63 | 72 79 70 74 20 5b 30 5d | */..  c|rypt [0]|
|00005330| 20 5e 3d 20 63 70 72 62 | 75 66 20 5b 30 5d 3b 20 | ^= cprb|uf [0]; |
|00005340| 20 63 72 79 70 74 20 5b | 31 5d 20 5e 3d 20 63 70 | crypt [|1] ^= cp|
|00005350| 72 62 75 66 20 5b 31 5d | 3b 0a 09 20 20 6c 73 68 |rbuf [1]|;..  lsh|
|00005360| 36 34 20 28 69 76 2c 20 | 71 75 61 6e 74 29 3b 20 |64 (iv, |quant); |
|00005370| 20 20 20 20 20 20 20 20 | 20 20 20 2f 2a 20 73 68 |        |   /* sh|
|00005380| 69 66 74 20 65 78 69 73 | 74 69 6e 67 20 49 56 20 |ift exis|ting IV |
|00005390| 6f 76 65 72 20 2a 2f 0a | 09 20 20 72 70 6c 72 36 |over */.|.  rplr6|
|000053a0| 34 20 28 69 76 2c 20 63 | 72 79 70 74 2c 20 71 75 |4 (iv, c|rypt, qu|
|000053b0| 61 6e 74 29 3b 20 20 20 | 20 2f 2a 20 72 65 70 6c |ant);   | /* repl|
|000053c0| 61 63 65 20 4c 53 20 49 | 56 20 62 69 74 73 20 77 |ace LS I|V bits w|
|000053d0| 69 74 68 20 44 45 53 20 | 6f 75 74 70 75 74 20 2a |ith DES |output *|
|000053e0| 2f 0a 09 20 20 6c 73 68 | 36 34 20 28 63 69 70 68 |/..  lsh|64 (ciph|
|000053f0| 65 72 2c 20 71 75 61 6e | 74 29 3b 20 20 20 20 20 |er, quan|t);     |
|00005400| 20 20 20 2f 2a 20 6d 61 | 6b 65 20 73 70 61 63 65 |   /* ma|ke space|
|00005410| 20 69 6e 20 63 69 70 68 | 65 72 20 6f 75 74 20 61 | in ciph|er out a|
|00005420| 72 72 61 79 20 2a 2f 0a | 09 20 20 72 70 6c 72 36 |rray */.|.  rplr6|
|00005430| 34 20 28 63 69 70 68 65 | 72 2c 20 63 72 79 70 74 |4 (ciphe|r, crypt|
|00005440| 2c 20 71 75 61 6e 74 29 | 3b 20 2f 2a 20 69 6e 73 |, quant)|; /* ins|
|00005450| 65 72 74 20 6e 65 77 20 | 6f 75 74 70 75 74 20 62 |ert new |output b|
|00005460| 69 74 73 20 2a 2f 0a 09 | 7d 0a 20 20 20 20 20 20 |its */..|}.      |
|00005470| 20 20 73 70 72 64 6c 74 | 6f 62 20 28 63 69 70 68 |  sprdlt|ob (ciph|
|00005480| 65 72 5b 30 5d 2c 20 26 | 6f 74 62 62 75 66 5b 30 |er[0], &|otbbuf[0|
|00005490| 5d 29 3b 0a 20 20 20 20 | 20 20 20 20 73 70 72 64 |]);.    |    sprd|
|000054a0| 6c 74 6f 62 20 28 63 69 | 70 68 65 72 5b 31 5d 2c |ltob (ci|pher[1],|
|000054b0| 20 26 6f 74 62 62 75 66 | 5b 34 5d 29 3b 0a 20 20 | &otbbuf|[4]);.  |
|000054c0| 20 20 20 20 20 20 64 69 | 5f 62 79 74 65 73 20 28 |      di|_bytes (|
|000054d0| 38 2c 20 6f 74 62 62 75 | 66 2c 20 4e 55 4c 4c 2c |8, otbbu|f, NULL,|
|000054e0| 20 26 6f 68 78 6c 69 6e | 65 20 5b 66 6c 77 69 64 | &ohxlin|e [flwid|
|000054f0| 2a 69 5d 29 3b 0a 09 69 | 66 20 28 54 52 55 45 20 |*i]);..i|f (TRUE |
|00005500| 3d 3d 20 65 6f 66 79 65 | 74 29 20 62 72 65 61 6b |== eofye|t) break|
|00005510| 3b 0a 20 20 20 20 20 20 | 7d 0a 20 20 20 20 7d 0a |;.      |}.    }.|
|00005520| 20 20 20 20 65 6c 73 65 | 20 69 66 20 28 64 6d 6f |    else| if (dmo|
|00005530| 64 65 20 3d 3d 20 4f 46 | 42 29 0a 20 20 20 20 7b |de == OF|B).    {|
|00005540| 0a 20 20 20 20 20 20 66 | 6f 72 20 28 69 20 3d 20 |.      f|or (i = |
|00005550| 30 3b 20 69 20 3c 20 34 | 3b 20 69 2b 2b 29 20 20 |0; i < 4|; i++)  |
|00005560| 20 20 20 2f 2a 20 34 20 | 67 72 6f 75 70 73 20 6f |   /* 4 |groups o|
|00005570| 6e 20 61 20 70 72 69 6e | 74 61 62 6c 65 20 6c 69 |n a prin|table li|
|00005580| 6e 65 20 2a 2f 0a 20 20 | 20 20 20 20 7b 0a 20 20 |ne */.  |    {.  |
|00005590| 20 20 20 20 20 20 69 66 | 20 28 54 52 55 45 20 3d |      if| (TRUE =|
|000055a0| 3d 20 67 5f 69 6e 62 79 | 74 65 73 20 28 38 2c 20 |= g_inby|tes (8, |
|000055b0| 69 6e 62 62 75 66 29 29 | 20 65 6f 66 79 65 74 20 |inbbuf))| eofyet |
|000055c0| 3d 20 54 52 55 45 3b 0a | 20 20 20 20 20 20 20 20 |= TRUE;.|        |
|000055d0| 64 69 5f 62 79 74 65 73 | 20 28 38 2c 20 69 6e 62 |di_bytes| (8, inb|
|000055e0| 62 75 66 2c 20 26 69 70 | 72 6c 69 6e 65 20 5b 66 |buf, &ip|rline [f|
|000055f0| 6c 77 69 64 2a 69 5d 2c | 20 26 69 68 78 6c 69 6e |lwid*i],| &ihxlin|
|00005600| 65 20 5b 66 6c 77 69 64 | 2a 69 5d 29 3b 0a 20 20 |e [flwid|*i]);.  |
|00005610| 20 20 20 20 20 20 70 61 | 63 6b 62 74 6f 6c 20 28 |      pa|ckbtol (|
|00005620| 26 69 6e 62 62 75 66 5b | 30 5d 2c 20 26 70 6c 61 |&inbbuf[|0], &pla|
|00005630| 69 6e 5b 30 5d 29 3b 0a | 20 20 20 20 20 20 20 20 |in[0]);.|        |
|00005640| 70 61 63 6b 62 74 6f 6c | 20 28 26 69 6e 62 62 75 |packbtol| (&inbbu|
|00005650| 66 5b 34 5d 2c 20 26 70 | 6c 61 69 6e 5b 31 5d 29 |f[4], &p|lain[1])|
|00005660| 3b 0a 09 66 6f 72 20 28 | 6a 20 3d 20 30 3b 20 6a |;..for (|j = 0; j|
|00005670| 20 3c 20 36 34 3b 20 6a | 2b 3d 71 75 61 6e 74 29 | < 64; j|+=quant)|
|00005680| 0a 09 7b 0a 20 20 20 20 | 20 20 20 20 20 20 64 6f |..{.    |      do|
|00005690| 64 65 73 20 28 69 76 2c | 20 63 72 79 70 74 2c 20 |des (iv,| crypt, |
|000056a0| 45 4e 43 52 59 50 54 2c | 20 6b 73 29 3b 0a 09 20 |ENCRYPT,| ks);.. |
|000056b0| 20 72 73 68 36 34 20 28 | 63 72 79 70 74 2c 20 36 | rsh64 (|crypt, 6|
|000056c0| 34 2d 71 75 61 6e 74 29 | 3b 20 20 20 20 20 20 2f |4-quant)|;      /|
|000056d0| 2a 20 72 69 67 68 74 2d | 61 6c 69 67 6e 20 61 63 |* right-|align ac|
|000056e0| 74 69 76 65 20 44 45 53 | 20 6f 75 74 70 75 74 20 |tive DES| output |
|000056f0| 62 69 74 73 20 2a 2f 0a | 09 20 20 6c 73 68 36 34 |bits */.|.  lsh64|
|00005700| 20 28 69 76 2c 20 71 75 | 61 6e 74 29 3b 20 20 20 | (iv, qu|ant);   |
|00005710| 20 20 20 20 20 20 20 20 | 20 2f 2a 20 73 68 69 66 |        | /* shif|
|00005720| 74 20 65 78 69 73 74 69 | 6e 67 20 49 56 20 6f 76 |t existi|ng IV ov|
|00005730| 65 72 20 2a 2f 0a 09 20 | 20 72 70 6c 72 36 34 20 |er */.. | rplr64 |
|00005740| 28 69 76 2c 20 63 72 79 | 70 74 2c 20 71 75 61 6e |(iv, cry|pt, quan|
|00005750| 74 29 3b 20 20 20 20 2f | 2a 20 72 65 70 6c 61 63 |t);    /|* replac|
|00005760| 65 20 4c 53 20 49 56 20 | 62 69 74 73 20 77 69 74 |e LS IV |bits wit|
|00005770| 68 20 44 45 53 20 6f 75 | 74 70 75 74 20 2a 2f 0a |h DES ou|tput */.|
|00005780| 09 20 20 63 70 79 36 34 | 20 28 70 6c 61 69 6e 2c |.  cpy64| (plain,|
|00005790| 20 63 70 72 62 75 66 29 | 3b 20 20 20 20 20 20 20 | cprbuf)|;       |
|000057a0| 20 2f 2a 20 63 6f 70 79 | 20 70 6c 61 69 6e 74 65 | /* copy| plainte|
|000057b0| 78 74 20 74 6f 20 73 63 | 72 61 74 63 68 20 2a 2f |xt to sc|ratch */|
|000057c0| 0a 09 20 20 72 73 68 36 | 34 20 28 63 70 72 62 75 |..  rsh6|4 (cprbu|
|000057d0| 66 2c 20 36 34 2d 28 71 | 75 61 6e 74 2b 6a 29 29 |f, 64-(q|uant+j))|
|000057e0| 3b 20 2f 2a 20 72 69 67 | 68 74 2d 61 6c 69 67 6e |; /* rig|ht-align|
|000057f0| 20 61 63 74 69 76 65 20 | 70 6c 61 69 6e 74 65 78 | active |plaintex|
|00005800| 74 20 62 69 74 73 20 2a | 2f 0a 09 20 20 2f 2a 20 |t bits *|/..  /* |
|00005810| 58 4f 52 20 74 68 65 6d | 20 69 6e 74 6f 20 44 45 |XOR them| into DE|
|00005820| 53 20 6f 75 74 70 75 74 | 20 2a 2f 0a 09 20 20 63 |S output| */..  c|
|00005830| 72 79 70 74 20 5b 30 5d | 20 5e 3d 20 63 70 72 62 |rypt [0]| ^= cprb|
|00005840| 75 66 20 5b 30 5d 3b 20 | 20 63 72 79 70 74 20 5b |uf [0]; | crypt [|
|00005850| 31 5d 20 5e 3d 20 63 70 | 72 62 75 66 20 5b 31 5d |1] ^= cp|rbuf [1]|
|00005860| 3b 0a 09 20 20 6c 73 68 | 36 34 20 28 63 69 70 68 |;..  lsh|64 (ciph|
|00005870| 65 72 2c 20 71 75 61 6e | 74 29 3b 20 20 20 20 20 |er, quan|t);     |
|00005880| 20 20 20 2f 2a 20 6d 61 | 6b 65 20 73 70 61 63 65 |   /* ma|ke space|
|00005890| 20 69 6e 20 63 69 70 68 | 65 72 20 6f 75 74 20 61 | in ciph|er out a|
|000058a0| 72 72 61 79 20 2a 2f 0a | 09 20 20 72 70 6c 72 36 |rray */.|.  rplr6|
|000058b0| 34 20 28 63 69 70 68 65 | 72 2c 20 63 72 79 70 74 |4 (ciphe|r, crypt|
|000058c0| 2c 20 71 75 61 6e 74 29 | 3b 20 2f 2a 20 69 6e 73 |, quant)|; /* ins|
|000058d0| 65 72 74 20 6e 65 77 20 | 6f 75 74 70 75 74 20 62 |ert new |output b|
|000058e0| 69 74 73 20 2a 2f 0a 09 | 7d 0a 20 20 20 20 20 20 |its */..|}.      |
|000058f0| 20 20 73 70 72 64 6c 74 | 6f 62 20 28 63 69 70 68 |  sprdlt|ob (ciph|
|00005900| 65 72 5b 30 5d 2c 20 26 | 6f 74 62 62 75 66 5b 30 |er[0], &|otbbuf[0|
|00005910| 5d 29 3b 0a 20 20 20 20 | 20 20 20 20 73 70 72 64 |]);.    |    sprd|
|00005920| 6c 74 6f 62 20 28 63 69 | 70 68 65 72 5b 31 5d 2c |ltob (ci|pher[1],|
|00005930| 20 26 6f 74 62 62 75 66 | 5b 34 5d 29 3b 0a 09 64 | &otbbuf|[4]);..d|
|00005940| 69 5f 62 79 74 65 73 20 | 28 38 2c 20 6f 74 62 62 |i_bytes |(8, otbb|
|00005950| 75 66 2c 20 4e 55 4c 4c | 2c 20 26 6f 68 78 6c 69 |uf, NULL|, &ohxli|
|00005960| 6e 65 20 5b 66 6c 77 69 | 64 2a 69 5d 29 3b 0a 20 |ne [flwi|d*i]);. |
|00005970| 20 20 20 20 20 20 20 69 | 66 20 28 54 52 55 45 20 |       i|f (TRUE |
|00005980| 3d 3d 20 65 6f 66 79 65 | 74 29 20 62 72 65 61 6b |== eofye|t) break|
|00005990| 3b 0a 20 20 20 20 20 20 | 7d 20 20 20 20 20 20 20 |;.      |}       |
|000059a0| 20 20 20 20 20 20 20 20 | 20 20 20 20 20 20 20 0a |        |       .|
|000059b0| 20 20 20 20 7d 0a 20 20 | 20 20 70 72 69 6e 74 66 |    }.  |  printf|
|000059c0| 20 28 22 25 73 5c 6e 25 | 73 5c 6e 25 73 5c 6e 22 | ("%s\n%|s\n%s\n"|
|000059d0| 2c 20 69 70 72 6c 69 6e | 65 2c 20 69 68 78 6c 69 |, iprlin|e, ihxli|
|000059e0| 6e 65 2c 20 6f 68 78 6c | 69 6e 65 29 3b 0a 20 20 |ne, ohxl|ine);.  |
|000059f0| 7d 0a 20 20 70 72 69 6e | 74 66 20 28 22 5c 6e 22 |}.  prin|tf ("\n"|
|00005a00| 29 3b 0a 7d 0a 0a 2f 2a | 20 2d 2d 2d 2d 2d 2d 2d |);.}../*| -------|
|00005a10| 2d 2d 2d 2d 2d 2d 2d 2d | 2d 2d 2d 2d 2d 2d 2d 2d |--------|--------|
|00005a20| 2d 2d 2d 2d 2d 2d 2d 2d | 2d 2d 2d 2d 2d 2d 2d 2d |--------|--------|
|00005a30| 2d 2d 2d 2d 2d 2d 2d 2d | 2d 2d 2d 2d 2d 2d 2d 20 |--------|------- |
|00005a40| 2a 2f 0a 2f 2a 20 54 68 | 69 73 20 44 45 53 20 73 |*/./* Th|is DES s|
|00005a50| 6f 66 74 77 61 72 65 20 | 77 61 73 20 64 65 76 65 |oftware |was deve|
|00005a60| 6c 6f 70 65 64 20 62 79 | 20 53 74 65 76 65 20 4b |loped by| Steve K|
|00005a70| 65 6e 74 20 61 6e 64 20 | 4a 6f 68 6e 20 4c 69 6e |ent and |John Lin|
|00005a80| 6e 20 2a 2f 0a 2f 2a 20 | 61 74 20 42 42 4e 20 43 |n */./* |at BBN C|
|00005a90| 6f 6d 6d 75 6e 69 63 61 | 74 69 6f 6e 73 20 43 6f |ommunica|tions Co|
|00005aa0| 72 70 6f 72 61 74 69 6f | 6e 2c 20 43 61 6d 62 72 |rporatio|n, Cambr|
|00005ab0| 69 64 67 65 2c 20 4d 41 | 20 2a 2f 0a 2f 2a 20 44 |idge, MA| */./* D|
|00005ac0| 6f 20 6e 6f 74 20 72 65 | 64 69 73 74 72 69 62 75 |o not re|distribu|
|00005ad0| 74 65 20 74 68 69 73 20 | 73 6f 66 74 77 61 72 65 |te this |software|
|00005ae0| 2c 20 6f 72 20 69 6e 74 | 65 67 72 61 74 65 20 77 |, or int|egrate w|
|00005af0| 69 74 68 20 6f 74 68 65 | 72 20 2a 2f 0a 2f 2a 20 |ith othe|r */./* |
|00005b00| 73 6f 66 74 77 61 72 65 | 2c 20 77 69 74 68 6f 75 |software|, withou|
|00005b10| 74 20 70 72 65 73 65 72 | 76 69 6e 67 20 74 68 69 |t preser|ving thi|
|00005b20| 73 20 6e 6f 74 69 63 65 | 20 2a 2f 0a 2f 2a 20 2d |s notice| */./* -|
|00005b30| 2d 2d 2d 2d 2d 2d 2d 2d | 2d 2d 2d 2d 2d 2d 2d 2d |--------|--------|
|00005b40| 2d 2d 2d 2d 2d 2d 2d 2d | 2d 2d 2d 2d 2d 2d 2d 2d |--------|--------|
|00005b50| 2d 2d 2d 2d 2d 2d 2d 2d | 2d 2d 2d 2d 2d 2d 2d 2d |--------|--------|
|00005b60| 2d 2d 2d 2d 2d 20 2a 2f | 0a 0a 2f 2f 67 6f 2e 73 |----- */|..//go.s|
|00005b70| 79 73 69 6e 20 64 64 20 | 64 65 6d 6f 64 65 73 2e |ysin dd |demodes.|
|00005b80| 63 0a 0a 65 63 68 6f 20 | 78 20 2d 20 64 65 73 2e |c..echo |x - des.|
|00005b90| 63 0a 63 61 74 20 3e 20 | 22 64 65 73 2e 63 22 20 |c.cat > |"des.c" |
|00005ba0| 3c 3c 20 27 2f 2f 67 6f | 2e 73 79 73 69 6e 20 64 |<< '//go|.sysin d|
|00005bb0| 64 20 64 65 73 2e 63 27 | 0a 2f 2a 20 64 65 73 2e |d des.c'|./* des.|
|00005bc0| 63 20 2d 2d 20 74 68 69 | 73 20 66 69 6c 65 20 63 |c -- thi|s file c|
|00005bd0| 6f 6e 74 61 69 6e 73 20 | 61 6e 20 6f 70 74 69 6d |ontains |an optim|
|00005be0| 69 7a 65 64 20 43 2d 62 | 61 73 65 64 20 44 45 53 |ized C-b|ased DES|
|00005bf0| 20 61 6c 67 6f 72 69 74 | 68 6d 20 20 20 20 20 20 | algorit|hm      |
|00005c00| 20 2a 2f 0a 2f 2a 20 69 | 6d 70 6c 65 6d 65 6e 74 | */./* i|mplement|
|00005c10| 61 74 69 6f 6e 2e 20 20 | 4d 61 6e 79 20 6c 6f 6f |ation.  |Many loo|
|00005c20| 70 73 20 61 72 65 20 73 | 74 72 65 74 63 68 65 64 |ps are s|tretched|
|00005c30| 20 6f 75 74 20 69 6e 74 | 6f 20 73 74 72 61 69 67 | out int|o straig|
|00005c40| 68 74 2d 6c 69 6e 65 20 | 63 6f 64 65 2c 20 2a 2f |ht-line |code, */|
|00005c50| 0a 2f 2a 20 73 6f 20 74 | 68 69 73 20 76 65 72 73 |./* so t|his vers|
|00005c60| 69 6f 6e 20 69 73 20 6e | 6f 74 20 70 61 72 74 69 |ion is n|ot parti|
|00005c70| 63 75 6c 61 72 6c 79 20 | 73 68 6f 72 74 2c 20 6d |cularly |short, m|
|00005c80| 6f 64 75 6c 61 72 2c 20 | 6f 72 20 72 65 61 64 61 |odular, |or reada|
|00005c90| 62 6c 65 2e 20 20 28 73 | 69 7a 65 20 2a 2f 0a 2f |ble.  (s|ize */./|
|00005ca0| 2a 20 61 73 20 6f 66 20 | 33 31 20 41 75 67 20 38 |* as of |31 Aug 8|
|00005cb0| 33 3a 20 20 37 33 33 38 | 2b 31 34 32 36 2b 36 33 |3:  7338|+1426+63|
|00005cc0| 37 32 20 3d 20 31 35 31 | 33 36 62 20 3d 20 30 33 |72 = 151|36b = 03|
|00005cd0| 35 34 34 30 62 29 20 48 | 6f 77 65 76 65 72 2c 20 |5440b) H|owever, |
|00005ce0| 69 74 20 69 73 20 2a 2f | 0a 2f 2a 20 71 75 69 63 |it is */|./* quic|
|00005cf0| 6b 2e 20 20 28 41 20 44 | 45 53 20 65 6e 63 72 79 |k.  (A D|ES encry|
|00005d00| 70 74 69 6f 6e 20 74 69 | 6d 65 73 20 61 74 20 61 |ption ti|mes at a|
|00005d10| 70 70 72 6f 78 69 6d 61 | 74 65 6c 79 20 37 20 75 |pproxima|tely 7 u|
|00005d20| 73 65 72 20 6d 73 20 6f | 6e 20 61 20 43 2f 37 30 |ser ms o|n a C/70|
|00005d30| 29 20 49 74 20 2a 2f 0a | 2f 2a 20 72 65 61 64 73 |) It */.|/* reads|
|00005d40| 20 69 74 73 20 6b 65 79 | 20 73 63 68 65 64 75 6c | its key| schedul|
|00005d50| 65 20 61 6e 64 20 63 65 | 72 74 61 69 6e 20 74 61 |e and ce|rtain ta|
|00005d60| 62 6c 65 73 20 66 72 6f | 6d 20 66 69 6c 65 73 20 |bles fro|m files |
|00005d70| 67 65 6e 65 72 61 74 65 | 64 20 62 79 20 2a 2f 0a |generate|d by */.|
|00005d80| 2f 2a 20 61 73 73 6f 63 | 69 61 74 65 64 20 70 72 |/* assoc|iated pr|
|00005d90| 6f 67 72 61 6d 73 20 6b | 73 62 2e 63 20 61 6e 64 |ograms k|sb.c and|
|00005da0| 20 74 62 6c 62 6c 64 2e | 63 2e 20 20 4a 6f 68 6e | tblbld.|c.  John|
|00005db0| 20 4c 69 6e 6e 20 2d 2d | 20 38 20 41 70 72 69 6c | Linn --| 8 April|
|00005dc0| 20 31 39 38 33 20 2a 2f | 0a 2f 2a 20 22 42 75 67 | 1983 */|./* "Bug|
|00005dd0| 22 20 66 69 78 20 31 37 | 20 46 65 62 20 31 39 38 |" fix 17| Feb 198|
|00005de0| 34 20 2d 20 69 6e 73 65 | 72 74 20 6d 61 73 6b 69 |4 - inse|rt maski|
|00005df0| 6e 67 20 73 6f 20 61 73 | 20 74 6f 20 68 61 76 65 |ng so as| to have|
|00005e00| 20 45 20 77 6f 72 6b 20 | 6f 6e 0a 20 20 20 33 32 | E work |on.   32|
|00005e10| 20 62 69 74 20 6d 61 63 | 68 69 6e 65 73 20 77 69 | bit mac|hines wi|
|00005e20| 74 68 20 73 69 67 6e 20 | 65 78 74 65 6e 73 69 6f |th sign |extensio|
|00005e30| 6e 20 6f 6e 20 72 69 67 | 68 74 20 73 68 69 66 74 |n on rig|ht shift|
|00005e40| 73 20 28 6c 69 6b 65 20 | 56 61 78 2c 20 36 38 6b |s (like |Vax, 68k|
|00005e50| 20 28 3f 29 29 20 2a 2f | 0a 2f 2a 20 6f 62 73 65 | (?)) */|./* obse|
|00005e60| 72 76 61 74 69 6f 6e 3a | 20 77 68 65 6e 20 63 6f |rvation:| when co|
|00005e70| 6d 70 69 6c 65 64 20 6f | 6e 74 6f 20 76 61 78 2c |mpiled o|nto vax,|
|00005e80| 20 74 61 6b 65 73 20 6f | 6e 6c 79 20 7e 20 32 2e | takes o|nly ~ 2.|
|00005e90| 36 20 6d 73 20 74 6f 20 | 65 6e 63 72 79 70 74 20 |6 ms to |encrypt |
|00005ea0| 2a 2f 0a 0a 23 69 6e 63 | 6c 75 64 65 20 3c 73 74 |*/..#inc|lude <st|
|00005eb0| 64 69 6f 2e 68 3e 0a 23 | 64 65 66 69 6e 65 20 4c |dio.h>.#|define L|
|00005ec0| 4d 41 53 4b 20 20 20 20 | 30 58 46 43 46 43 46 43 |MASK    |0XFCFCFC|
|00005ed0| 46 43 4c 3b 0a 0a 2f 2a | 20 64 61 74 61 20 73 74 |FCL;../*| data st|
|00005ee0| 72 75 63 74 75 72 65 73 | 20 74 6f 20 62 65 20 72 |ructures| to be r|
|00005ef0| 65 61 64 20 66 72 6f 6d | 20 66 69 6c 65 73 20 2a |ead from| files *|
|00005f00| 2f 0a 73 74 61 74 69 63 | 20 6c 6f 6e 67 20 69 70 |/.static| long ip|
|00005f10| 20 5b 32 5d 20 5b 32 35 | 36 5d 3b 20 20 20 20 20 | [2] [25|6];     |
|00005f20| 0a 73 74 61 74 69 63 20 | 6c 6f 6e 67 20 69 70 69 |.static |long ipi|
|00005f30| 20 5b 32 5d 20 5b 32 35 | 36 5d 3b 0a 73 74 61 74 | [2] [25|6];.stat|
|00005f40| 69 63 20 6c 6f 6e 67 20 | 73 6e 6f 70 20 5b 38 5d |ic long |snop [8]|
|00005f50| 20 5b 36 34 5d 3b 0a 75 | 6e 73 69 67 6e 65 64 20 | [64];.u|nsigned |
|00005f60| 6b 73 20 5b 31 36 5d 20 | 5b 34 5d 3b 0a 0c 0a 2f |ks [16] |[4];.../|
|00005f70| 2a 20 72 64 66 69 6c 65 | 73 20 2d 2d 20 72 65 61 |* rdfile|s -- rea|
|00005f80| 64 73 20 66 69 6c 65 64 | 20 69 6e 66 6f 2c 20 72 |ds filed| info, r|
|00005f90| 65 74 75 72 6e 73 20 31 | 20 69 66 66 20 73 75 63 |eturns 1| iff suc|
|00005fa0| 63 65 73 73 2c 20 30 20 | 6f 74 68 65 72 77 69 73 |cess, 0 |otherwis|
|00005fb0| 65 20 2a 2f 0a 69 6e 74 | 20 72 64 66 69 6c 65 73 |e */.int| rdfiles|
|00005fc0| 20 28 29 0a 7b 0a 20 20 | 69 6e 74 20 69 2c 20 6a | ().{.  |int i, j|
|00005fd0| 3b 0a 20 20 46 49 4c 45 | 20 2a 66 70 2c 20 2a 66 |;.  FILE| *fp, *f|
|00005fe0| 6f 70 65 6e 20 28 29 3b | 0a 0a 20 20 69 66 20 28 |open ();|..  if (|
|00005ff0| 4e 55 4c 4c 20 3d 3d 20 | 28 66 70 20 3d 20 66 6f |NULL == |(fp = fo|
|00006000| 70 65 6e 20 28 22 69 70 | 22 2c 20 22 72 22 29 29 |pen ("ip|", "r"))|
|00006010| 29 0a 20 20 7b 0a 20 20 | 20 20 70 72 69 6e 74 66 |).  {.  |  printf|
|00006020| 20 28 22 64 65 73 20 2d | 2d 20 63 61 6e 27 74 20 | ("des -|- can't |
|00006030| 72 65 61 64 20 66 69 6c | 65 20 27 69 70 27 5c 6e |read fil|e 'ip'\n|
|00006040| 22 29 3b 0a 20 20 20 20 | 72 65 74 75 72 6e 20 28 |");.    |return (|
|00006050| 30 29 3b 0a 20 20 7d 0a | 20 20 66 6f 72 20 28 69 |0);.  }.|  for (i|
|00006060| 20 3d 20 30 3b 20 69 20 | 3c 20 32 3b 20 69 2b 2b | = 0; i |< 2; i++|
|00006070| 29 0a 20 20 20 20 66 6f | 72 20 28 6a 20 3d 20 30 |).    fo|r (j = 0|
|00006080| 3b 20 6a 20 3c 20 32 35 | 36 3b 20 6a 2b 2b 29 20 |; j < 25|6; j++) |
|00006090| 0a 20 20 20 20 20 20 69 | 66 20 28 45 4f 46 20 3d |.      i|f (EOF =|
|000060a0| 3d 20 66 73 63 61 6e 66 | 20 28 66 70 2c 20 22 25 |= fscanf| (fp, "%|
|000060b0| 6c 78 22 2c 20 26 69 70 | 20 5b 69 5d 20 5b 6a 5d |lx", &ip| [i] [j]|
|000060c0| 29 29 0a 20 20 20 20 20 | 20 7b 0a 20 20 20 20 20 |)).     | {.     |
|000060d0| 20 20 20 70 72 69 6e 74 | 66 20 28 22 64 65 73 20 |   print|f ("des |
|000060e0| 2d 2d 20 27 69 70 27 20 | 72 65 61 64 20 66 61 69 |-- 'ip' |read fai|
|000060f0| 6c 65 64 20 61 74 20 69 | 3d 25 64 2c 20 6a 3d 25 |led at i|=%d, j=%|
|00006100| 64 5c 6e 22 2c 20 69 2c | 20 6a 29 3b 0a 09 72 65 |d\n", i,| j);..re|
|00006110| 74 75 72 6e 20 28 30 29 | 3b 0a 20 20 20 20 20 20 |turn (0)|;.      |
|00006120| 7d 0a 20 20 66 63 6c 6f | 73 65 20 28 66 70 29 3b |}.  fclo|se (fp);|
|00006130| 0a 20 20 0a 20 20 69 66 | 20 28 4e 55 4c 4c 20 3d |.  .  if| (NULL =|
|00006140| 3d 20 28 66 70 20 3d 20 | 66 6f 70 65 6e 20 28 22 |= (fp = |fopen ("|
|00006150| 69 70 69 22 2c 20 22 72 | 22 29 29 29 0a 20 20 7b |ipi", "r|"))).  {|
|00006160| 0a 20 20 20 20 70 72 69 | 6e 74 66 20 28 22 64 65 |.    pri|ntf ("de|
|00006170| 73 20 2d 2d 20 63 61 6e | 27 74 20 72 65 61 64 20 |s -- can|'t read |
|00006180| 66 69 6c 65 20 27 69 70 | 69 27 5c 6e 22 29 3b 0a |file 'ip|i'\n");.|
|00006190| 20 20 20 20 72 65 74 75 | 72 6e 20 28 30 29 3b 0a |    retu|rn (0);.|
|000061a0| 20 20 7d 0a 20 20 66 6f | 72 20 28 69 20 3d 20 30 |  }.  fo|r (i = 0|
|000061b0| 3b 20 69 20 3c 20 32 3b | 20 69 2b 2b 29 0a 20 20 |; i < 2;| i++).  |
|000061c0| 20 20 66 6f 72 20 28 6a | 20 3d 20 30 3b 20 6a 20 |  for (j| = 0; j |
|000061d0| 3c 20 32 35 36 3b 20 6a | 2b 2b 29 20 0a 20 20 20 |< 256; j|++) .   |
|000061e0| 20 20 20 69 66 20 28 45 | 4f 46 20 3d 3d 20 66 73 |   if (E|OF == fs|
|000061f0| 63 61 6e 66 20 28 66 70 | 2c 20 22 25 6c 78 22 2c |canf (fp|, "%lx",|
|00006200| 20 26 69 70 69 20 5b 69 | 5d 20 5b 6a 5d 29 29 0a | &ipi [i|] [j])).|
|00006210| 20 20 20 20 20 20 7b 0a | 09 70 72 69 6e 74 66 20 |      {.|.printf |
|00006220| 28 22 64 65 73 20 2d 2d | 20 27 69 70 69 27 20 72 |("des --| 'ipi' r|
|00006230| 65 61 64 20 66 61 69 6c | 65 64 20 61 74 20 69 3d |ead fail|ed at i=|
|00006240| 25 64 2c 20 6a 3d 25 64 | 5c 6e 22 2c 20 69 2c 20 |%d, j=%d|\n", i, |
|00006250| 6a 29 3b 0a 09 72 65 74 | 75 72 6e 20 28 30 29 3b |j);..ret|urn (0);|
|00006260| 0a 20 20 20 20 20 20 7d | 0a 20 20 66 63 6c 6f 73 |.      }|.  fclos|
|00006270| 65 20 28 66 70 29 3b 0a | 20 20 0a 20 20 69 66 20 |e (fp);.|  .  if |
|00006280| 28 4e 55 4c 4c 20 3d 3d | 20 28 66 70 20 3d 20 66 |(NULL ==| (fp = f|
|00006290| 6f 70 65 6e 20 28 22 73 | 6e 6f 70 22 2c 20 22 72 |open ("s|nop", "r|
|000062a0| 22 29 29 29 0a 20 20 7b | 0a 20 20 20 20 70 72 69 |"))).  {|.    pri|
|000062b0| 6e 74 66 20 28 22 64 65 | 73 20 2d 2d 20 63 61 6e |ntf ("de|s -- can|
|000062c0| 27 74 20 72 65 61 64 20 | 66 69 6c 65 20 27 73 6e |'t read |file 'sn|
|000062d0| 6f 70 27 5c 6e 22 29 3b | 0a 20 20 20 20 72 65 74 |op'\n");|.    ret|
|000062e0| 75 72 6e 20 28 30 29 3b | 0a 20 20 7d 0a 20 20 66 |urn (0);|.  }.  f|
|000062f0| 6f 72 20 28 69 20 3d 20 | 30 3b 20 69 20 3c 20 38 |or (i = |0; i < 8|
|00006300| 3b 20 69 2b 2b 29 0a 20 | 20 20 20 66 6f 72 20 28 |; i++). |   for (|
|00006310| 6a 20 3d 20 30 3b 20 6a | 20 3c 20 36 34 3b 20 6a |j = 0; j| < 64; j|
|00006320| 2b 2b 29 20 0a 20 20 20 | 20 20 20 69 66 20 28 45 |++) .   |   if (E|
|00006330| 4f 46 20 3d 3d 20 66 73 | 63 61 6e 66 20 28 66 70 |OF == fs|canf (fp|
|00006340| 2c 20 22 25 6c 78 22 2c | 20 26 73 6e 6f 70 20 5b |, "%lx",| &snop [|
|00006350| 69 5d 20 5b 6a 5d 29 29 | 0a 20 20 20 20 20 20 7b |i] [j]))|.      {|
|00006360| 0a 20 20 20 20 20 20 20 | 20 70 72 69 6e 74 66 20 |.       | printf |
|00006370| 28 22 64 65 73 20 2d 2d | 20 27 73 6e 6f 70 27 20 |("des --| 'snop' |
|00006380| 72 65 61 64 20 66 61 69 | 6c 65 64 20 61 74 20 69 |read fai|led at i|
|00006390| 3d 25 64 2c 20 6a 3d 25 | 64 5c 6e 22 2c 20 69 2c |=%d, j=%|d\n", i,|
|000063a0| 20 6a 29 3b 0a 09 72 65 | 74 75 72 6e 20 28 30 29 | j);..re|turn (0)|
|000063b0| 3b 0a 20 20 20 20 20 20 | 7d 0a 20 20 66 63 6c 6f |;.      |}.  fclo|
|000063c0| 73 65 20 28 66 70 29 3b | 0a 0a 20 20 69 66 20 28 |se (fp);|..  if (|
|000063d0| 4e 55 4c 4c 20 3d 3d 20 | 28 66 70 20 3d 20 66 6f |NULL == |(fp = fo|
|000063e0| 70 65 6e 20 28 22 6b 73 | 22 2c 20 22 72 22 29 29 |pen ("ks|", "r"))|
|000063f0| 29 0a 20 20 7b 0a 20 20 | 20 20 70 72 69 6e 74 66 |).  {.  |  printf|
+--------+-------------------------+-------------------------+--------+--------+