This preview shows page 1. Sign up to view the full content.
Unformatted text preview: The ciphertext USAXCYKUSAPNUCOQMHIJESXKYHVS was produced by a Vigenere cipher. What is the likely key length? 6. Vigenere cipher is a polyalphabetic cipher that uses multiple Cesar ciphers. Design a polyalphabetic cipher that uses multiple Playfair ciphers. 7. Do Problem 2.20 on the 5 th edition (or 2.21 on the 4 th edition) of Stallings. This question is about steganography. The key is a sequence of singledigit integers, namely 7, 8, 7, 6, 5, 6, 5, 4, Hint: what do these singledigit integers indicate?...
View
Full
Document
This note was uploaded on 01/22/2011 for the course CSE 651 taught by Professor Tenh.lai during the Spring '10 term at Ohio State.
 Spring '10
 TenH.Lai

Click to edit the document details