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The Twofish Algorithm

Another example of the evolution of cryptographic technology is found in the Twofish algorithm, one of the finalists in the AES competition. In summary, Twofish is a symmetric block cipher that operates on 128-bit blocks in 16 rounds that works in all standard modes. It can accept key lengths up to 256 bits. Twofish is a Feistel network in that...
AES is a block cipher that will replace DES, but it is anticipated that Triple DES will remain an approved algorithm for U.S. Government use. Triple DES and DES are specified in FIPS 46-3.The AES initiative was announced in January 1997 by NIST, and candidate encryption algorithm submissions were solicited. On August 29, 1998, a group of 15 AES candidates...