|
Streebog
Streebog () is a cryptographic hash function defined in the Russian national standard GOST R 34.11-2012 ''Information Technology – Cryptographic Information Security – Hash Function''. It was created to replace an obsolete GOST hash function defined in the old standard GOST R 34.11-94, and as an asymmetric reply to SHA-3 competition by the US National Institute of Standards and Technology. The function is also described in RFC 6986 and one out of hash functions in ISO/IEC 10118-3:2018. Description Streebog operates on 512-bit blocks of the input, using the Merkle–Damgård construction to handle inputs of arbitrary size. The high-level structure of the new hash function resembles the one from GOST R 34.11-94, however, the compression function was changed significantly. The compression function operates in Miyaguchi–Preneel mode and employs a 12-round AES-like cipher with a 512-bit block and 512-bit key. (It uses an 8×8 matrix of bytes rather than AES's 4×4 matrix.) S ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
GOST (hash Function)
The GOST hash function, defined in the standards GOST R 34.11-94 and GOST 34.311-95 is a 256-bit cryptographic hash function. It was initially defined in the Russian national standard GOST R 34.11-94 ''Information Technology – Cryptographic Information Security – Hash Function''. The equivalent standard used by other member-states of the Commonwealth of Independent States, CIS is GOST 34.311-95. This function must not be confused with a different Streebog hash function, which is defined in the new revision of the standard GOST R 34.11-2012. The GOST hash function is based on the GOST (block cipher), GOST block cipher. Algorithm GOST processes a variable-length message into a fixed-length output of 256 bits. The input message is broken up into chunks of 256-bit blocks (eight 32-bit endianness, little endian integers); the message is padding (cryptography), padded by appending as many zeros to it as are required to bring the length of the message up to 256 bits. The remaining ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |