November 1, 2004Introduction to Computer Security ©2004 Matt Bishop Slide #8-55 Example Alice receives 28 16 44 44 42 Alice uses private key, d = 53, to decrypt message: –28 53 mod 77 = 07 –16 53 mod 77 = 04 –44 53 mod 77 = 11 –42 53 mod 77 = 14 Alice translates message to letters to read HELLO –No one else could read it, as only Alice knows her private key and that is needed for decryption
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