This copy of CrackLib is based on the 2.7 release by Alec Muffett.  The
following modifications have been made:

 * Require more different characters in the password.
 * Strengthen the prefix and suffix rules for longer passwords.
 * Increased the minimum password length to 8 characters.
 * Modified the adjacent character check to depend on the password length.
 * Remove checks against the user's GECOS entry.
 * Don't exit on failure to open the database.
 * Improve the search algorithm in FindPW somewhat.
 * Don't segfault on corrupt dictionaries.
 * Fixed the data format output by packer to properly pad the end.
 * Add ANSI C prototypes for all functions and mark const variables.
 * Remove unused functions.
 * Various compilation warning and portability fixes.
 * Use Autoconf and portable/system.h to find types of specific lengths.
 * Increase MINLENGTH.
 * Add a check for a duplicated dictionary word.
 * Changed error for very short passwords to match current CrackLib.
 * Remove last block optimization in GetPW and start fresh each time.
 * Close the dictionary after each password lookup.
 * Set hidden visibility on all CrackLib symbols.
 * Close the wfp file handle on PWClose if it's open.

Below is the original changelog for CrackLib:

v2.7    mkdict/tr problem eliminated;
	misc fixes suggested by Andrey Savochkin <saw@msu.ru> (with thanks)
v2.6    buffer overflow problems addressed - 1st attempt
	permutations of fascist deconstructors fixed/enhanced
v2.5    added decent info to the "shadow" directory patches.
v2.4    forwarded to ch & jfh3 for beta testing/comments
v2.3-   internal beta test versions