1. Nist fips pub;Advanced Encryption Standard,2001
2. Apereo, Central Authentication Service. https://apereo.github.io/cas/6.5.x/index.html.
3. A Symmetric Key Cryptographic Algorithm;Ayushi;International Journal of Computer Applications,2010
4. Kerberos: An Authentication Service for Computer Networks;B. Clifford Neuman;IEEE Communications Magazine,1994
5. Recommendation for the Triple Data Encryption Algorithm (TDEA) Block Cipher;Barker;NIST Spec. Publ.,2012