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- EVERETT ENTERPRISES
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- THE PRIVATE LINE(TM)
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- FACT SHEET
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- The Private Line(TM) is a Shareware PC/MS-DOS implementation of the Data
- Encryption Standard (DES) published by the National Bureau of Standards,
- United States Department of Commerce. It will encrypt any MS-DOS file
- (including LOTUS 1-2-3, dBase II/III, WordStar, Word Perfect, Display Write
- and others) and will work on IBM PC/XT/AT, PS/2 and compatibles with MS-DOS
- 2.0 or later, including 3.0 and 4.0 and OS/2.
-
- The Private Line complies with the encryption requirements of the data
- encryption algorithm. Any file encrypted by either hardware or software which
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- meets the requirements of National Bureau of Standards Special Publication
- 500-20, can be decrypted by The Private Line.
-
- The Private Line contains the following features:
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- 1. Choice of DES Mode of Operation
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- a. electronic codebook
- b. cipher block chaining
- c. 64 or 8-bit cipher feedback
- d. 64 or 8-bit output feedback
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- 2. Selection of Short Block Processing Method
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- a. With Padding
- b. Without Padding
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- 3. User-friendly menu-driven and/or command line function
- 4. Single or double file encryption and decryption
- 5. User-selected alphabetic or hexidecimal keys
- 6. File purge capability - file overwrite before name
- deleted from disk directory
- 7. Sorted disk directory display capability
- 8. Binary file conversion to printable ASCII (for telecommunications)
- 9. User set default switches for the following features:
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- a. Automatic purge of input file after encryption and/or decryption
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- b. User-prompt for purge of input file after encryption and/or
- decryption
- c. Number of times a file is overwritten before it is purged
- d. User-prompt before re-use of existing files
- e. Key entry echo
- f. Choice between command line program exiting to MS-DOS or
- The Private Line Master Menu
-
-
- g. Choice of DES Mode of Operation
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- (1) electronic codebook
- (2) cipher block chaining
- (3) 64 or 8-bit cipher feedback
- (4) 64 or 8-bit output feedback
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- h. Selection of Short Block Processing Method
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- 10. Not copy-protected
- 11. Verifies and demonstrates compliance with DES
- 12. Pathnames are fully supported
- 13. File display (binary or ASCII) capability
- 14. Text file print capability
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- The Private Line also contains the capability to change (CHDIR), create
- (MKDIR), and remove (RMDIR) a directory.
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- Only 64K RAM is required. The Private Line will work on either hard or floppy
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- disk systems. The Private Line consists of an executable program and a 46+
- page user's manual which contains easy step-by-step instructions on its use.
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- Evaluation diskettes containing the complete executable Private Line program
- and documentation may be ordered from Everett Enterprises by mail or telephone
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- at a cost of $10 using money orders or checks. Checks must be drawn on U.S.
- banks and require a fifteen day clearance period. Please send all mail orders
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- to EVERETT ENTERPRISES, 7839 Vervain Court, Springfield, VA 22152. Foreign
- orders must add $15.00 and include written assurances in accordance with U.S.
-
- Department of Commerce Export Administration Bulletin Number 240. Orders may
-
- also be submitted via CompuServe (70320,107) using Easyplex.
-
- Evaluation copies of The Private Line and its documentation, contained in
- TPL.ARC (program) and TPLDOC.ARC (documentation), may be downloaded from
- the CompuServe Bulletin Board IBMNET Special Interest Group. TPL.ARC and
- TPLDOC.ARC are contained in Data Library 0 (new uploads) of the Software
- Systems / Utilities Forum for 30 days after being uploaded and thereafter from
-
- Data Library 3 (General Utilities). PKUNPAK may be used to un-archive the
- files contained in TPL.ARC and TPLDOC.ARC.
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- Evaluation copies of The Private Line may also be obtained from the PC-SIG,
- 1030D East Duane Ave., Sunnyvale, CA 94086, (800) 245-6717. The Private Line
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- is contained on Disk 893 of the PC-SIG collection.
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- After evaluation, a $30 registration fee is required for continued use. A
- printed User's Guide is furnished upon registration.
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- Volume discounts, on-site licenses, and dealer inquires are welcome.
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- Telephone orders, marketing and technical questions should be directed to
- Surry Everett: (703) 866-3914 (7 PM - 10 PM, M-F, EST).
-
- Requests for review copies should be submitted on letter-head stationary to
- EVERETT ENTERPRISES, ATTN: Surry Everett, 7839 Vervain Court, Springfield, VA
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- 22152.
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- Enhancements and Bug Fixes
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- Version 7.02 is the most current version of The Private Line.
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- Version 6.01 fixed a bug in the ECB padding routine.
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- Version 6.02 added the capability to disable the speaker. Several users have
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- voiced their dislike of the beeps each time the program is waiting for user
- input. The default is speaker disabled. The user may enable the speaker from
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- the Additional Options Menu and change the default by saving the selected
- options.
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- Version 6.02 also changed the key to return to the previous menu. In previous
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- versions, Control-R was used. Beginning with this version, ESCAPE, will back
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- the user out of each operation, except for the List Directory option while the
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- directory is being input by the user. This change is downward compatible;
- Control-R continues to work.
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- Version 6.03 includes the display of the current directory when the program is
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- waiting for a file name. The hi-light bar may be moved by using the arrow and
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- page up/page down keys. The high-lighted filename may be selected by pressing
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- RETURN. The desired filename may still be entered by typing it and/or the
- associated path. If the user begins typing a file name, the high-light bar
- may still be moved, but when RETURN is pressed, the filename used is the one
- entered by the user, not the one under the high-light bar. If a filename
- entered by the user is erased by using the backspace key, then the filename
- under the high-light bar may once again be selected by pressing RETURN.
-
- Version 6.04 increased the number of filenames from 10 to 50 which are
- displayed when the program is waiting for a filename to be entered by the
- user. Version 6.04 also added the use of hexadecimal keys from the command
- line.
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- Version 6.05 corrected a bug which occurred when the Private Line was used in
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- a non EGA environment.
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- Version 6.06 corrected a bug which occurred when the Private Line is used in a
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- CGA environment.
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- Version 7.0 added screen memory write routines for the master and additional
- option menus, the opening and closing screens, the directory display and for
- the screens from which the filenames contained on the current directory are
- displayed.
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- Version 7.01 corrected an error in the CBC short block decryption routine.
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- Version 7.02 corrected errors in the short block decryption routine.