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Unformatted text preview: generated and XORed with the ciphertext. Unit 3 - 6 Stream Ciphers, cont. The stream cipher function can be viewed simply as: K is the key, S is the keystream that well use as a one-time pad S is represented as: S = s s 1 s 2 ... The encryption formula is: P = p p 1 p 2 ... is the plaintext, and C = c c 1 c 2 ... is the ciphertext. StreamCipher (K) = S c = p s , c 1 = p 1 s 1 , c 2 = p 2 s 2 , . . ....
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This note was uploaded on 03/17/2011 for the course ECE 4472 taught by Professor Ouda during the Fall '10 term at UWO.
- Fall '10
- Information Security