| Server IP : 153.92.12.183 / Your IP : 216.73.217.26 Web Server : LiteSpeed System : Linux id-dci-web1986.main-hosting.eu 5.14.0-611.26.1.el9_7.x86_64 #1 SMP PREEMPT_DYNAMIC Thu Jan 29 05:24:47 EST 2026 x86_64 User : u686484674 ( 686484674) PHP Version : 8.0.30 Disable Function : system, exec, shell_exec, passthru, mysql_list_dbs, ini_alter, dl, symlink, link, chgrp, leak, popen, apache_child_terminate, virtual, mb_send_mail MySQL : OFF | cURL : ON | WGET : ON | Perl : OFF | Python : OFF | Sudo : OFF | Pkexec : OFF Directory : /opt/golang/1.22.0/src/hash/ |
Upload File : |
// Copyright 2009 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
// Package hash provides interfaces for hash functions.
package hash
import "io"
// Hash is the common interface implemented by all hash functions.
//
// Hash implementations in the standard library (e.g. [hash/crc32] and
// [crypto/sha256]) implement the [encoding.BinaryMarshaler] and
// [encoding.BinaryUnmarshaler] interfaces. Marshaling a hash implementation
// allows its internal state to be saved and used for additional processing
// later, without having to re-write the data previously written to the hash.
// The hash state may contain portions of the input in its original form,
// which users are expected to handle for any possible security implications.
//
// Compatibility: Any future changes to hash or crypto packages will endeavor
// to maintain compatibility with state encoded using previous versions.
// That is, any released versions of the packages should be able to
// decode data written with any previously released version,
// subject to issues such as security fixes.
// See the Go compatibility document for background: https://golang.org/doc/go1compat
type Hash interface {
// Write (via the embedded io.Writer interface) adds more data to the running hash.
// It never returns an error.
io.Writer
// Sum appends the current hash to b and returns the resulting slice.
// It does not change the underlying hash state.
Sum(b []byte) []byte
// Reset resets the Hash to its initial state.
Reset()
// Size returns the number of bytes Sum will return.
Size() int
// BlockSize returns the hash's underlying block size.
// The Write method must be able to accept any amount
// of data, but it may operate more efficiently if all writes
// are a multiple of the block size.
BlockSize() int
}
// Hash32 is the common interface implemented by all 32-bit hash functions.
type Hash32 interface {
Hash
Sum32() uint32
}
// Hash64 is the common interface implemented by all 64-bit hash functions.
type Hash64 interface {
Hash
Sum64() uint64
}