00660nam a22002051 4500 1/12718 980430s1997 enk 000 0 eng d 007709235X 13161 DLC GR-PeUP 005.82 BE Beckett, Brian. Introduction to Cryptology and pc security/ Brian Beckett. London: McGraw-Hill Companies, 1997. 356: fig., 22 cm. Index. Cryptology (Computer science). Cryptography (Computer science). Data security (Computer science). INST UNIPILB MAIN 20040709 005.82 BE 00128798 00128798 LOAN 0 1