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paperback. Condizione: New. Paperback. Pub Date: 2006 Pages: 417 in Publisher: Tsinghua University Press universities information and communication engineering textbook series: computer communication information security technology. the author repeatedly taught computer security courses based on the reference to domestic related literature written. The book is divided into 10 chapters. the basic concepts of computer communication information security. computer viruses. password technology. computer systems security. inf.…