Cryptography Stack Exchange
Cryptography Stack Exchange

Questions tagged [twofish]

A symmetric block-cipher algorithm with a 128-bit block size, and key sizes up to 256 bits.

Twofish is a symmetric block-cipher algorithm with a 128-bit block size, and key sizes up to 256 bits.

The Twofish block-cipher was one of the five finalists of the Advanced Encryption Standard contest, but was not selected. It is related to the earlier Blowfish block-cipher.

See the wikipedia page for more information.

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Twofish fails Dieharder test

I've tested Twofish (256 bit) as follows. A lengthy pseudorandom sequence was generated and used as a key. Plaintext phrases 000000000..00, 00000..01, 0000...FFFFF, were generated and encoded using Twofish with the key. Ciphertexts were split in 32…
Stepan
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Twofish key length

I'm using twofish. Say you have a 120 bit key, is there any difference in using a 128 bit bit keylength or a 256 bit one? Since the most significant digits of the key will be allo zero in both cases, does the keylen parameter really matter?
Remo.D
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