Block cipher

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Insecure encryption of an image as a result of electronic codebook mode encoding.

In cryptography, a block cipher is a deterministic algorithm operating on fixed-length groups of bits, called blocks, with an unvarying transformation that is specified by a symmetric key. Block ciphers are important elementary components in the design of many cryptographic protocols, and are widely used to implement encryption of bulk data.

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• Related: Block cipher security summary, Topics in cryptography

A list of many symmetric algorithms, the majority ... A list of many symmetric algorithms, the majority of which are block ciphers. www.users.zetnet.co.uk/hopwood/crypto/scan/cs.html - Web

The block cipher lounge The block cipher lounge www.mat.dtu.dk/people/Lars.R.Knudsen/bc.html - Web

What is a block cipher? What is a block cipher? www.rsa.com/rsalabs/node.asp?id=2168 - Web

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