keymsg

一个使用des加密传输的unix下的login程序的服务器端和客户端

You must select a default encryption key for the userFile.
This allows you to place "deslogind -c" in /etc/inetd.config.
Pick a secure passphase, longer than 8 characters, that you can 
remember.  You will need it every time you must edit the 
userFile (to add users, or to change pass phrases).  The most 
secure way to run deslogind is with no arguments and type the
userFile passphrase in response to its query.  You need never use
the -c option, and when you do, it never exposes the contents of 
the userFile.  If you use a different key to encrypt the userfile,
the -c option will not work, but otherwise the deslogind will
work fine.  The compiled-in key is not stored as a text 
string, nor is it a simple 8-byte DES key.

*** Do not run deslogind where its virtual-memory data segment
*** can be examined by sufficiently determined hostile users.

*** Do not use the -c option if the executable file can be
*** can be examined by sufficiently determined hostile users.