1. National Institute of Standards and Technology, U.S. Department of Commerce. Advanced Encryption Standard (AES). Federal Information Processing Standard 197 (2001)
2. National Institute of Standards and Technology, U.S. Department of Commerce. Secure hash standard. Federal Information Processing Standard, FIPS-180-1 (1995)
3. National Institute of Standards and Technology, U.S. Department of Commerce. Secure hash standard. Federal Information Processing Standard, FIPS-180 (1993)
4. National Institute of Standards and Technology, U.S. Department of Commerce. The Keyed-Hash Message Authentication Code (HMAC). Federal Information Processing Standard 198 (2002)
5. Lecture Notes in Computer Science;M. Bellare,1996