Hamsi
Hamsi is a SHA-3 competition submission by Küçük, a sponge hash based on a simple permutation with a lightweight structure.
Purpose
A SHA-3 competition candidate whose simple structure suits hardware implementation, though with a smaller security margin.
Mechanism
Sponge construction with a 256/512-bit state. Each round applies SubBytes (a message-dependent S-box), ShiftRows, MixColumns, and constant addition to the state. The round count is small.
Use cases
- SHA-3 competition submission
- Lightweight hashing
- Hardware implementation