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SHA-3 (Secure Hash Algorithm 3) is the latest [4] member of the Secure Hash Algorithm family of standards, released by NIST on August 5, 2015. [5] [6] [7] Although part of the same series of standards, SHA-3 is internally different from the MD5-like structure of SHA-1 and SHA-2.
The Secure Hash Algorithms are a family of cryptographic hash functions published by the National Institute of Standards and Technology (NIST) as a U.S. Federal Information Processing Standard (FIPS), including: SHA-0: A retronym applied to the original version of the 160-bit hash function published in 1993 under the name "SHA". It was ...
Comparison of SHA functions . Algorithm and variant Output size (bits) Internal state size ... SHA3-224 SHA3-256 SHA3-384 SHA3-512: 224 256 384 512: 1600 (5 × 5 × ...
The following tables compare general and technical information for a number of cryptographic hash functions. See the individual functions' articles for further information. This article is not all-inclusive or necessarily up-to-date. An overview of hash function security/cryptanalysis can be found at hash function security summary.
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. [1] "
A function meeting these criteria may still have undesirable properties. Currently, popular cryptographic hash functions are vulnerable to length-extension attacks: given hash(m) and len(m) but not m, by choosing a suitable m ′ an attacker can calculate hash(m ∥ m ′), where ∥ denotes concatenation. [6]
This is a list of hash functions, including cyclic redundancy checks, checksum functions, and cryptographic hash functions. This list is incomplete ; you can help by adding missing items . ( February 2024 )
Function Compress Input: h Persistent state vector chunk 128-byte (16 double word) chunk of message to compress t: Number, 0..2 128 Count of bytes that have been fed into the Compression IsLastBlock: Boolean Indicates if this is the final round of compression Output: h Updated persistent state vector Setup local work vector V V 0..7 ← h 0..7 ...