TY  - BOOK
AU  - Gupta Kailash N
AU  -  Agarwala Prateek A
TI  - Digital signature : Network security practices
U1  - D6,8(B),94, P6 
PY  - 2006///
CY  - New Delhi
PB  - Prentice - Hall    
KW  - Computer-Security
ER  -