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Substitution-Permutation Network: Cryptography, Block Cipher, Advanced Encryption Standard, Plaintext, S-Box, Permutation Box, Ciphertext, Exclusive Or, Bitwise Operation, Data Encryption Standard -

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2026-03-20
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Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. 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). Such a network takes a block of the plaintext and the key as inputs, and applies several alternating "rou ... Pilns apraksts

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Aprašymas

Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. 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). Such a network takes a block of the plaintext and the key as inputs, and applies several alternating "rounds" or "layers" of substitution boxes (S-boxes) and permutation boxes (P-boxes) to produce the ciphertext block. The S-boxes and P-boxes transform (sub-)blocks of input bits into output bits. It is common for these transformations to be operations that are efficient to perform in hardware, such as exclusive or (XOR) and bitwise rotation. The key is introduced in each round, usually in the form of "round keys" derived from it. (In some designs, the S-boxes themselves depend on the key.)

Vairāk informācijas

Izdevējs OmniScriptum
Izlaides gads 2026
Vāka tips Mīkstais vāks
EAN 9786130356293
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Jūs vērtējat: Substitution-Permutation Network: Cryptography, Block Cipher, Advanced Encryption Standard, Plaintext, S-Box, Permutation Box, Ciphertext, Exclusive Or, Bitwise Operation, Data Encryption Standard
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137,01 € 195,73 €