SHA


Also found in: Dictionary, Medical, Acronyms, Wikipedia.

SHA

SHA

(Secure Hash Algorithm) A family of popular cryptographic hash algorithms used to create digital signatures. The 160-bit SHA was developed by the National Institute of Standards & Technology (NIST) in 1993, and SHA-1 was the first revision in 1994. SHA-1 is similar to the MD4 and MD5 algorithms developed by Rivest, but is slightly slower and more secure. See MD5.

SHA-2 and SHA-3
Released in 2001, the stronger SHA-2 version superseded SHA-1. Because computers are increasingly more powerful, the stronger algorithm is encouraged by certificate authorities (CAs) to prevent an attacker from impersonating a CA. SHA-256 and SHA-512 are SHA-2 algorithms using hash lengths of 256 and 512 bits respectively, and SHA-224 and SHA-384 are truncated versions.

SHA-3 was released by NIST in 2015, which supports the same hash lengths as SHA-2 but uses a different cryptographic method based on the Keccak algorithm. SHA-3 was the result of a NIST competition for a new hash standard that began in 2006 and ended in 2012. See cryptographic hash function and digital signature.
References in periodicals archive ?
The prevalence of SHA increased from 2015 to 2018, with a significant upward trend in 2018 (2015, 25.2 percent; 2016, 26.5 percent; 2017, 25.6 percent; and 2018, 33.2 percent).
To do gua sha, the area must be oiled or lubricated so that the tool can glide easily.
Having made his case for rehabilitating the imagination in the scientific thought of the period, Sha turns to an analysis of texts conventionally classified as literary.
"The SHA supports HD families through a national network of specialists, a world leading youth support team and its financial wellbeing service."
'District West, which is one of the oldest districts of the city, had the honour of producing a galaxy of Olympians and internationals of the game in the past,' KHA secretary Syed Haider Hussain, said in a rejoinder letter to the SHA official, a copy of which was sent to the PHF president and secretary also.
"The synergies and shared goals between Evoteq and the SHA are self-evident," said H.E.
Inashi kwatha sha molwashoka iikando oyindji ofoloko onda li tandi yi tsu ashike moshiyaha itayi tsu sha.
Al Mahyan added that the SHA's commitment to corporate social responsibility is a core element in helping support the UAE's long-term health strategy.
Most network security professionals would not consider it an overstatement to say that our ability to successfully perform security services, such as confidentiality, integrity authentication, source authentication and authorization, and non-repudiation, are directly dependent on the unfailing cryptographic properties of the employed SHA standard--which in this case is SHA-256.
The 93 suites in Sha are not about four walls, fluffy duvets, sheer curtains and a fancy coffee machine.
f tic tic tic ic ic i tic ick t k t k t k t ket ket ket ket ket ket ket f s f s f s f s f s f s for or or or or or h Sh Sh Sh Sh Sh Sh Sh Sha Sha Sha Sha Sha Sha Sha 6 m 6 m 6 m 6 m 6 m 69 We have a pair of tickets for Sham 69 up for grabs - and for your chance to win all you have to do is answer this stupidly easy question: WHAT WAS THE NAME OF SHAM 69'S FIRST MAJOR-LABEL HIT?