Trustworthy encryption systems - PowerPoint PPT Presentation

Lecture 2 Overview

Lecture 2 Overview. Cryptography. Secret writing Disguised data cannot be read, modified, or fabricated easily Feasibility of complexity for communicating parties Encryption : encoding (encipher) plaintext  cipher text C = E(c) (E = encryption rule) Decryption : decoding (decipher)

★ ★ ★ ★ ★

393 views • 29 slides

Making “Good” Encryption Algorithms

Making “Good” Encryption Algorithms. Substitution algorithms “hide” the plaintext and dissipate high letter frequencies Transposition algorithms scramble text Many “good” algorithms combine both techniques. Shannon’s Characteristics of “Good” Ciphers.

★ ★ ★ ★ ★

1.05k views • 7 slides

View Trustworthy encryption systems PowerPoint (PPT) presentations online in SlideServe. SlideServe has a very huge collection of Trustworthy encryption systems PowerPoint presentations. You can view or download Trustworthy encryption systems presentations for your school assignment or business presentation. Browse for the presentations on every topic that you want.