'Left shifts' presentation slideshows

Number Systems Part 2

368 views • 28 slides

254542 Networks Management and Security

254542 Networks Management and Security. Lecture 2 June 25 th & 30 th 2005. Cryptography. E = Encryption, D = Decryption K 1 and K 2 = Encryption and Decryption keys m = message or plaintext E(m, K 1 ) = ciphertext D(E(m, K 1 ), K 2 ) = m. Ciphertext. Plaintext. D. Plaintext. E.

374 views • 27 slides