Function keccak_hash::keccak256_range

pub fn keccak256_range(data: &mut [u8], range: Range<usize>)

Computes in-place keccak256 hash of data[range].

The range argument specifies a subslice of data in bytes to be hashed. The resulting hash will be written back to data.

Panics

If range is out of bounds.

Example

let mut data = [1u8; 32];
// Hash the first 8 bytes of `data` and write the result, 32 bytes, to `data`.
keccak_hash::keccak256_range(&mut data, 0..8);
let expected = [
    0x54, 0x84, 0x4f, 0x69, 0xb4, 0xda, 0x4b, 0xb4, 0xa9, 0x9f, 0x24, 0x59, 0xb5, 0x11, 0xd4, 0x42,
    0xcc, 0x5b, 0xd2, 0xfd, 0xf4, 0xc3, 0x54, 0xd2, 0x07, 0xbb, 0x13, 0x08, 0x94, 0x43, 0xaf, 0x68,
];
assert_eq!(&data, &expected);