HAIFA construction

Design method for cryptographic hash functions

The HAIFA construction (hash iterative framework) is a cryptographic structure used in the design of hash functions. It is one of the modern alternatives to the Merkle–Damgård construction,^[1] avoiding its weaknesses like length extension attacks. The construction was designed by Eli Biham and Orr Dunkelman in 2007.

Three of the 14 second round candidates in the NIST hash function competition were based on HAIFA constructions (BLAKE, SHAvite-3, ECHO). Other hash functions based on it are LAKE, Sarmal, SWIFFTX and HNF-256. The construction of Skein (Unique Block Iteration) is similar to HAIFA.^[2] Another alternative construction is the sponge construction.

References

^ Biham, Eli; Dunkelman, Orr (24 August 2006). A Framework for Iterative Hash Functions - HAIFA. Second NIST Cryptographic Hash Workshop – via Cryptology ePrint Archive: Report 2007/278.
^ Jean-Philippe Aumasson, Willi Meier, Raphael Phan, Luca Henzen: The Hash Function BLAKE, p. 35

External links

v t e Cryptographic hash functions and message authentication codes
List Comparison Known attacks
Common functions	MD5 (compromised) SHA-1 (compromised) SHA-2 SHA-3 BLAKE2
SHA-3 finalists	BLAKE Grøstl JH Skein Keccak (winner)
Other functions	BLAKE3 CubeHash ECOH FSB Fugue GOST HAS-160 HAVAL Kupyna LSH Lane MASH-1 MASH-2 MD2 MD4 MD6 MDC-2 N-hash RIPEMD RadioGatún SIMD SM3 SWIFFT Shabal Snefru Streebog Tiger VSH Whirlpool
Password hashing/ key stretching functions	Argon2 Balloon bcrypt Catena crypt LM hash Lyra2 Makwa PBKDF2 scrypt yescrypt
General purpose key derivation functions	HKDF KDF1/KDF2
MAC functions	CBC-MAC DAA GMAC HMAC NMAC OMAC/CMAC PMAC Poly1305 SipHash UMAC VMAC
Authenticated encryption modes	CCM ChaCha20-Poly1305 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 Sponge function HAIFA construction
Standardization	CAESAR Competition CRYPTREC NESSIE NIST hash function competition Password Hashing Competition
Utilization	Hash-based cryptography Merkle tree Message authentication Proof of work Salt Pepper

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