TY - BOOK AU - WILLIAM STALLINGS TI - CRYPTOGRAPHY AND NETWORK SECURITY PRINCIPLES AND PRACTICE SN - 9789332518773 U1 - 005.8 Q4 STA PY - 2014/// PB - PEARSON EDUCATION KW - DATA SECURITY [ Ciphers, Computer Viruses, Trojan Horses, Worms, Data Backup and Recovery, Computer Security, Network Security] ER -