TY  - RPRT
TI  - Technical specifications of a proposed Federal Information Processing Standard on the modes of operation for the Data Encryption Standard 
AU  - O'Brien, Michael J
PY  - 1980
PB  - National Bureau of Standards
CY  - Gaithersburg, MD
SN  - NBS IR 80-2019
DO  - 10.6028/NBS.IR.80-2019
ER  -