TY  - BOOK
AU  - Shyamala, C K 
AU  - N Harini and TR Padmanabhan
TI  - Cryptography and Security
SN  - 9788126522859
U1  - 005.82 SHY 
PY  - 2011///
CY  - Delhi 
PB  - Wiley 
ER  -