HAS-160

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HAS-160 is a cryptographic hash function designed for use with the Korean KCDSA digital signature algorithm. It is derived from SHA-1, with assorted changes intended to increase its security. It produces a 160-bit output.

HAS-160 is used in the same way as SHA-1. First it divides input in blocks of 512 bits each and pads the final block. A digest function updates the intermediate hash value by processing the input blocks in turn.

The message digest algorithm consists of 80 rounds.

External links

A description of HAS-160, and some test vectors.
RHash, an open source command-line tool capable of calculating HAS-160.

v t e Hash functions & message authentication codes
Security summary
Common functions	MD5 SHA-1 SHA-2 SHA-3/Keccak
SHA-3 finalists	BLAKE Grøstl JH Skein Keccak (winner)
Other functions	FSB ECOH GOST HAS-160 HAVAL Kupyna LM hash MDC-2 MD2 MD4 MD5 MD6 N-Hash RadioGatún RIPEMD SipHash Snefru Streebog SWIFFT Tiger VSH WHIRLPOOL crypt(3) (DES)
MAC algorithms	DAA CBC-MAC HMAC OMAC/CMAC PMAC VMAC UMAC Poly1305
Authenticated encryption modes	CCM CWC EAX GCM IAPM OCB
Attacks	Collision attack Preimage attack Birthday attack Brute force attack Rainbow table Side-channel attack Length extension attack
Design	Avalanche effect Hash collision Merkle–Damgård construction
Standardization	CRYPTREC NESSIE NIST hash function competition
Utilization	Salt Key stretching Message authentication
Key derivation functions	bcrypt PBKDF2 scrypt

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