README
上传用户:zslianheng
上传日期:2013-04-03
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- Late breaking news:
- Versions of uuencode and uudecode now included, which are helpful
- for using this package to send/receive encrypted mail.
- Phil asked me to clean this up slightly and package it for distribution.
- I've got it running on my Symmetric 4.2bsd system, Phil reports it runs fine
- on a variety of systems at Bellcore. Note that getopt is required but not
- provided, as there is already a getopt package in the mod.sources archives.
- Bdale Garbee, N3EUA 870401
- winfree!bdale aka bdale%winfree.uucp@flash.bellcore.com
- - - - - -
- This package contains a DES subroutine library based on the original public
- domain code by James Gillogly, but made faster and more flexible. Commands
- using this library have been added for testing and for encrypting and
- decrypting files (compatible with the DES command under Sun UNIX), among
- other things.
- Run make. That will compile everything and run test data (from the NBS
- certification suite) through it. It runs as-is under UNIX. It will run
- under MS-DOS with a few minor changes: make sure you define LITTLE_ENDIAN
- when compiling des.c, and change the name of the console in getpass.c. If
- you have the byte order flag set wrong, you will get ENCRYPT FAIL messages
- when the descert test is run.
- radlogin.c is an experimental program for secure UNIX login via insecure
- channels (like amateur packet radio). Make it and set it up as the login
- shell for a special, password-free login (e.g., "radio"). When it starts the
- user will be asked his REAL login name, which is then looked up in
- /etc/rkeys. (This file must be read protected since it contains DES keys).
- The time of day is then printed in hex as a challenge. The user must encrypt
- it using DES and his key and type the answer back. The user may use the
- program "descalc" to perform his local calculation. All this is very clumsy;
- it works, but after all it's only experimental.
- Phil Karn, KA9Q
- bellcore!karn aka karn@flash.bellcore.com
- - - - - -
- Subject: Re: rkeys file
- rkeys:
- karn 0123456789abcdef
- uid des_key_in_hex
- - - - - -