Spectr-H64
Block cipher / From Wikipedia, the free encyclopedia
In cryptography, Spectr-H64 is a block cipher designed in 2001 by N. D. Goots, A. A. Moldovyan and N. A. Moldovyan. It relies heavily on the permutation of individual bits, so is much better suited to implementation in hardware than in software.
Quick Facts General, Designers ...
General | |
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Designers | N.D. Goots, A.A. Moldovyan and N.A. Moldovyan |
First published | 2001 |
Successors | CIKS-1 |
Cipher detail | |
Key sizes | 256 bits |
Block sizes | 64 bits |
Structure | Feistel-like network |
Rounds | 12 |
Best public cryptanalysis | |
Slide attack using 217 chosen plaintexts |
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The algorithm has a block size of 64 bits and key size of 256 bits. It uses a 12-round structure in which half of the block determines the transformation of the other half in each round, similar to a Feistel cipher or RC5. This same basic design was repeated in its successor, CIKS-1.