1. FIPS PUB 140–2 Change Notices (Dec. 3, 2002) Security Requirements for Cryptographic Modules Category: Computer Security Subcategory: Cryptography;Evans;Mar,2002
2. Data Encryption Standard (DES);NIST,1977
3. D. NIST;Modes of Operation FIPS PUB 81,1980
4. FIPS Pub 180–1;Standard;National Institute of Standards and Technology,1995