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Shabal
Shabal is a cryptographic hash function submitted by the France-funded research project Saphir to NIST's international competition on hash functions. Saphir partners The research partners of Saphir (with the exception of LIENS) initiated the conception of Shabal and were later joined by partners of the research project Saphir2 who actively contributed to the final design of Shabal. Saphir (Security and Analysis of Hash Primitives) is an ANR funded project on hash functions. Saphir has started in March 2006 for a duration of three years and brought five partners together: Cryptolog International, DCSSI, France Telecom (leader), Gemalto and LIENS. Partners of Saphir2 come from both industry and academia; in addition to partners of Saphir, 4 new partners: EADS SN, INRIA, Sagem Sécurité and UVSQ joined and contributed to the project. History Shabal was an entry in the NIST hash function competition, where it passed to the second round, but failed to enter the final round. Shabal ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
NIST Hash Function Competition
The NIST hash function competition was an open competition held by the US National Institute of Standards and Technology (NIST) to develop a new hash function called SHA-3 to complement the older SHA-1 and SHA-2. The competition was formally announced in the ''Federal Register'' on November 2, 2007. "NIST is initiating an effort to develop one or more additional hash algorithms through a public competition, similar to the development process for the Advanced Encryption Standard (AES)." The competition ended on October 2, 2012 when NIST announced that Keccak would be the new SHA-3 hash algorithm. The winning hash function has been published as NIST FIPS 202 the "SHA-3 Standard", to complement FIPS 180-4, the '' Secure Hash Standard''. The NIST competition has inspired other competitions such as the Password Hashing Competition. Process Submissions were due October 31, 2008 and the list of candidates accepted for the first round was published on December 9, 2008. NIST held a con ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cryptographic Hash Function
A cryptographic hash function (CHF) is a hash algorithm (a map of an arbitrary binary string to a binary string with fixed size of n bits) that has special properties desirable for cryptography: * the probability of a particular n-bit output result ( hash value) for a random input string ("message") is 2^ (like for any good hash), so the hash value can be used as a representative of the message; * finding an input string that matches a given hash value (a ''pre-image'') is unfeasible, unless the value is selected from a known pre-calculated dictionary ("rainbow table"). The ''resistance'' to such search is quantified as security strength, a cryptographic hash with n bits of hash value is expected to have a ''preimage resistance'' strength of n bits. A ''second preimage'' resistance strength, with the same expectations, refers to a similar problem of finding a second message that matches the given hash value when one message is already known; * finding any pair of different me ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sébastien Chabal
Sébastien Chabal (born 8 December 1977) is a French former rugby union player. He played number eight and lock for Bourgoin (1998–2004), Sale Sharks (2004–2009), Racing Métro 92 Paris (2009 – February 2012), and for the French national team. Chabal played professionally for 16 years and won the English Premiership with Sale, and the 2007 Six Nations Championship with France. He also finished in fourth place at the 2007 Rugby World Cup. He earned his first international cap on 4 March 2000 against Scotland, and represented France in 62 games. He is known for his full beard, long hair and ferocious tackling, leading the French rugby fans to nickname him ''l'Homme des Cavernes'' (Caveman). With this look, he has a number of lucrative commercial contracts. He was one of the most popular sportsmen in France, so much that local journalists wrote about ''Chabalmania''. Personal life Born on 8 December 1977 in Valence, Drôme, Chabal grew up in Beaumont-lès-Valence in t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
