FIPS 112, Password Usage May 1985.
FIPS 112 identifies factors and acceptable basic criteria for managing passwords used for personal and data access authentication.
FIPS 181, Automated Password Generator October 1993
FIPS 181 specifies an algorithm for generating random numbers that are used to select the characters forming random, pronounceable passwords. The algorithm is based on DES.
Testing is not available for pasword generation.
NIST is developing new password and PIN guidance.