TY  - BOOK
AU  - Stallings,William
TI  - Cryptography and network security :principles and practice.- 6th ed
SN  - 9789332518773
U1  - 004.056 STA 
PY  - 2014///
CY  - New Delhi
PB  - Pearson
KW  - Cryptography
KW  - Network security
ER  -