TY  - BOOK
AU  - Stallings, William
TI  - Cryptography and network security:principles and practice
SN  - 13;978 0 13 705632 3
AV  - SBL TK 5105.59 S713 2011
PY  - 2011///
CY  - Boston
PB  - Prentice Hall
ER  -