block cipher

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block cipher

[′bläk ‚sī·fər]
(communications)
A cipher that transforms a string of input bits of fixed length into a string of output bits of fixed length.

block cipher

An encryption method that processes the input stream as groups of bytes that are fixed in size, typically 64, 128 or 256 bits long. The state of a block cipher is reset before processing each block. The DES and AES algorithms are examples of block ciphers (see DES and AES). Contrast with stream cipher.
References in periodicals archive ?
Here, the pre-trained codebook is trained by using any codebook algorithm (e.
In this paper, codebook algorithm has been used to model backgrounds.
A quantization/clustering technique is adopted to construct a background model in the codebook algorithm.