TY  - RPRT
TI  - The Keyed-Hash Message Authentication Code (HMAC) 
PY  - 2008
PB  - National Institute of Standards and Technology
CY  - Gaithersburg, MD
SN  - NIST FIPS 198-1
DO  - 10.6028/NIST.FIPS.198-1
ER  -