SHACAL
Block cipher / From Wikipedia, the free encyclopedia
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This article is about the cipher. For the animal, see Jackal. For other uses, see Jackal (disambiguation).
SHACAL-1 (originally simply SHACAL) is a 160-bit block cipher based on SHA-1, and supports keys from 128-bit to 512-bit. SHACAL-2 is a 256-bit block cipher based upon the larger hash function SHA-256.
This article includes a list of references, related reading, or external links, but its sources remain unclear because it lacks inline citations. (September 2017) |
Quick Facts General, Designers ...
General | |
---|---|
Designers | Helena Handschuh, David Naccache |
Derived from | SHA-1, SHA-256 |
Related to | Crab |
Certification | NESSIE (SHACAL-2) |
Cipher detail | |
Key sizes | 128 to 512 bits |
Block sizes | 160 bits (SHACAL-1), 256 bits (SHACAL-2) |
Structure | Cryptographic hash function |
Rounds | 80 |
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Both SHACAL-1 and SHACAL-2 were selected for the second phase of the NESSIE project. However, in 2003, SHACAL-1 was not recommended for the NESSIE portfolio because of concerns about its key schedule, while SHACAL-2 was finally selected as one of the 17 NESSIE finalists.