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- This directory contains source code for the MD5 message-digest algorithm.
-
- MD5.tar.Z is a compressed tar file of all the other files in this directory.
-
- "md5-announcement.txt" is the announcement from RSA Data Security that
- MD5 is being placed in the public domain for free general use.
-
- "rfc1321.txt" is the RFC that describes in detail the MD2, MD4, and MD5
- message-digest algorithms.
-
- The *.[ch] files were taken exactly from RFC 1321.
- I wrote a simple Makefile to build an md5 executable by default,
- with targets for "test" (which implements the test in Appendix A.5 in the RFC)
- and "clean". Running Makefile with no targets will build the "md5" binary.
-
- There is a typo in the RFC Appendix A.4 (mddriver.c).
- Line 20 sets MD to "MD5" by default, but the code wants
- MD to be set to one of "2", "4", or "5".
- I put a -DMD=5 in the Makefile to mask this problem so that the
- code itself remains unchanged from what is in RFC 1321.
-
- Ric Anderson, ric@Artisoft.COM, provided a bug fix to the timing test
- code that caused a divide by zero aborts on a Sun sparc station-10
- running soalris 2.3. This fix to mddriver.c is the only change to the
- code in RFC 1321 and corrects only a problem with the timing tests.
- No change to the code that implements the actual checksum has been made.
-
- Ric has also provided a man page - "md5.1". A postscript version
- of this man page is in "md5.1.ps" and a text version in "md5.1.txt".
-
- -- Jim Ellis (jte@cert.org)
-