001: 29680
003: Starlibrary PMS 4.5
005: 20180430
020: ^a978-81-203-2213-4
066: ^aCh.n
072: ^aintroduction to cryptography
082: ^a005.8
100: ^aCharlie Kaufman
240: ^anetwork security privat communication in apublic world
245: ^anetwork security privat communication in apublic world
260: ^c2007
650: ^amodes of operation
650: ^asecret key cryptograpty