TY  - BOOK
AU  - Stallings, William.
TI  - Cryptography and network security : : principles and practices 
SN  - 8178086050
U1  - 005.8 2
PY  - 2009///
CY  - New Delhi
PB  - Pearson Education
KW  - Conventional encryption
KW  - Network security practice
KW  - System security
ER  -