00849nam a2200229Ia 4500 CTU_88939 210402s9999 xx 000 0 und d 270000 005.8 N616 Nichols, Randall K. Defending your digital assets : against hackers, crackers, spies and thieves Randall K. Nichols, Daniel J. Ryan, Julie J. C. H. Ryan New York McGraw-Hill 2000 This book offers a guide to defending digital assets against all manner of threats, whatever their motivation or source. Computer security,Computer crimes,Data encryption (Computer science),Cryptography United States,United States Năm, H.Mai Trung tâm Học liệu Trường Đại học Cần Thơ