https://docs.oracle.com/cd/E88353_01/html/E37853/crypt-bsdbf-7.html
crypt_bsdbf - man pages section 7: Standards, Environments, Macros, Character Sets, and Miscellany
crypt_bsdbf - password hashing module using Blowfish cryptographic algorithm The crypt_bsdbf module is a one-way password hashing module for use with crypt...