keccak

Keccak-256 cryptographic hash function implementation.

Main Functions

• keccak_u256s_le_inputs - Hash multiple u256 values in little-endian format
• keccak_u256s_be_inputs - Hash multiple u256 values in big-endian format
• cairo_keccak - Hash u64 words with a final partial word. Closest to the syscall input.
• compute_keccak_byte_array - Hash a ByteArray directly

Examples

use core::keccak::*;

// Hash u256 values
let input = array![1_u256, 2_u256].span();
assert!(keccak_u256s_le_inputs(input) ==
0x234a9e12e9b063b60f7e3289ee9b86a731de8e7e41bd4987f10982d6a753444d);
assert!(keccak_u256s_be_inputs(input) ==
0xe0c2a7d2cc99d544061ac0ccbb083ac8976e54eed878fb1854dfe7b6ce7b0be9);

// Hash a `Bytearray`
let text: ByteArray = "Hello, Keccak!";
assert!(compute_keccak_byte_array(@text) ==
0x85c9aab73219c1e95c5b5966a4ecc8db4418c3500072a830cfb5a2d13d2c2249);

Fully qualified path: core::keccak

Free functions