// Copyright (c) 2019 Alexander Medvednikov. All rights reserved.
// Use of this source code is governed by an MIT license
// that can be found in the LICENSE file.

module hash

interface Hash {
	// Sum appends the current hash to b and returns the resulting array.
	// It does not change the underlying hash state.
	sum(b []byte) []byte
	size() int
	block_size() int
}

interface Hash32 {
	sum32() uint32
}

interface Hash64 {
	sum64() uint64
}