TY  - BOOK
AU  - Stallings,William
TI  - Cryptography and network security: principles and practice 
SN  - 8120323858 :
AV  - TK5105.59 .S73 2003
PY  - 2003///
CY  - New Delhi
PB  - Prentice Hall
KW  - Computer networks
KW  - Security measures
KW  - Cryptography
ER  -