The cracklib package contains a library used to enforce strong passwords by comparing user selected passwords to words in a chosen wordlist. Download (HTTP): Download (FTP): Download size: &cracklib-size; Estimated Disk space required (with cracklib wordlist): &cracklib-buildsize; Estimated build time: &cracklib-time; Cracklib BLFS patch: You will also need to download a wordlist for use with cracklib. There are two wordlists to choose from at the following location. Use the cracklib word list for good security, or opt for the allwords word list for lightweight machines short on RAM. You can of course choose any other word list that you have at your disposal. cracklib (&crackdict-size;): allwords (&alldict-size;):