TY  - BOOK
AU  - Stallings,William
TI  - Cryptography and network security: principles and practice 
SN  - 01292158587
AV  - TK5105.59 .S73 2017 c. 1
PY  - 2017///
CY  - Boston
PB  - Pearson
KW  - Computer networks
KW  - Security measures
KW  - Cryptography
ER  -