The Full Wiki

More info on Permutation box

Permutation box: Wikis

Advertisements

Note: Many of our articles have direct quotes from sources you can cite, within the Wikipedia article! This article doesn't yet, but we're working on it! See more info or our list of citable articles.

Encyclopedia

From Wikipedia, the free encyclopedia

In cryptography, a permutation box (or P-box) is a method of bit-shuffling used to permute or transpose bits across S-boxes inputs, retaining diffusion while transposing.[1]

In block ciphers, the S-boxes and P-Boxes are used to make the relation between the plaintext and the ciphertext difficult to understand (see Shannon's property of confusion).

See also

References

  1. ^ Computer Science and Engineering (PDF). Cryptography 2007. Chalmers University of Technology. http://www.cs.chalmers.se/Cs/Grundutb/Kurser/krypto/lect03-2x2.pdf.  
Advertisements

Simple English

In cryptography, a permutation box (or P-box) is a method of bit-shuffling used to permute or transpose bits (rearrange or swap the order of bits) across S-boxes inputs, maintaining diffusion while transposing.[1]

In block ciphers, the S-boxes and P-Boxes are used to make the relation between the plaintext and the ciphertext difficult to understand (see Shannon's property of confusion).

Other pages

References

  1. Computer Science and Engineering. "Cryptography 2007" (PDF). Chalmers University of Technology.


Advertisements






Got something to say? Make a comment.
Your name
Your email address
Message