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# Permutation box

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]

## Block cipher

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.

## Gyula Vikidál

Gyula Vikidál is a Hungarian singer.

## Lai-Massey scheme

The Lai-Massey scheme is a cryptographic structure used in the design of block ciphers.

## List of permutation topics

This is a list of topics on mathematical permutations.

## P-box

P-box may refer to.

## Product cipher

In cryptography, a product cipher combines two or more transformations in a manner intending that the resulting cipher is more secure than the individual components to make it resistant to cryptanalysis.

## S-box

In cryptography, an S-box (substitution-box) is a basic component of symmetric key algorithms which performs substitution.

## Substitution-permutation network

In cryptography, an SP-network, or substitution-permutation network (SPN), is a series of linked mathematical operations used in block cipher algorithms such as AES (Rijndael).

## References

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