The keyed-hash message authentication code (HMAC).

Bibliographic Details
Corporate Author:	Information Technology Laboratory (National Institute of Standards and Technology)
Format:	Government Document eBook
Language:	English
Published:	Gaithersburg, MD : Information Technology Laboratory, U.S. Dept. of Commerce, National Institute of Standards and Technology, [2008]
Series:	Federal information processing standards publication ; 198-1.
Subjects:	Hashing (Computer science) Data encryption (Computer science) Computer security > Government policy > United States.
Online Access:	https://purl.fdlp.gov/GPO/LPS115529