TY  - BOOK
AU  - Stallings,William
TI  - Cryptography and network security: principles and practice 
SN  - 9780137056323(pbk) :
U1  - 005.82 
PY  - 2011///
CY  - Boston, Mass.
PB  - Prentice Hall
KW  - Computer security
KW  - Cryptography
KW  - Computer networks
KW  - Security measures
N1  - Includes bibl. references and index
ER  -