CO487 Study Guide - Midterm Guide: Stream Cipher, Block Cipher, Substitution Cipher

• School: University of Waterloo
• Department: Combinatorics and Optimization
• Course: CO487
• Professor: David Jao

Document Summary

R t s r t s r s s r s s t r t t r t r r t r rt t. R t s r t s s t r t r s t r s r t r t r s st . T s tr r t s s sts t t t s m t r t t s c t s k r t t s ek : m c, k k . R t t s dk : c m, k k s t t. Dk(ek(m)) = m k k ek(m) = c c. R s r t k k t r s r . T s c = ek(m) s s t rt t c r t s r . S st t t r s s s ss s s t ss s r t t s t s .