Mhash Functions

简介

These functions are intended to work with » mhash. Mhash can be used to create checksums, message digests, message authentication codes, and more.

This is an interface to the mhash library. mhash supports a wide variety of hash algorithms such as MD5, SHA1, GOST, and many others. For a complete list of supported hashes, refer to the documentation of mhash. The general rule is that you can access the hash algorithm from PHP with MHASH_HASHNAME. For example, to access TIGER you use the PHP constant MHASH_TIGER.

需求

To use it, download the mhash distribution from » its web site and follow the included installation instructions.

安装

You need to compile PHP with the --with-mhash[=DIR] parameter to enable this extension. DIR is the mhash install directory.

运行时配置

本扩展模块在 php.ini 中未定义任何配置选项。

资源类型

本扩展模块未定义任何资源类型。

预定义常量

以下常量由本扩展模块定义,因此只有在本扩展模块被编译到 PHP 中,或者在运行时被动态加载后才有效。

Here is a list of hashes which are currently supported by mhash. If a hash is not listed here, but is listed by mhash as supported, you can safely assume that this documentation is outdated.

  • MHASH_ADLER32
  • MHASH_CRC32
  • MHASH_CRC32B
  • MHASH_GOST
  • MHASH_HAVAL128
  • MHASH_HAVAL160
  • MHASH_HAVAL192
  • MHASH_HAVAL256
  • MHASH_MD4
  • MHASH_MD5
  • MHASH_RIPEMD160
  • MHASH_SHA1
  • MHASH_SHA256
  • MHASH_TIGER
  • MHASH_TIGER128
  • MHASH_TIGER160

范例

例 1122. Compute the MD5 digest and hmac and print it out as hex

<?php
$input
= "what do ya want for nothing?";
$hash = mhash(MHASH_MD5, $input);
echo
"The hash is " . bin2hex($hash) . "<br />\n";
$hash = mhash(MHASH_MD5, $input, "Jefe");
echo
"The hmac is " . bin2hex($hash) . "<br />\n";
?>

This will produce:

The hash is d03cb659cbf9192dcd066272249f8412
The hmac is 750c783e6ab0b503eaa86e310a5db738

目录

mhash_count - Get the highest available hash id
mhash_get_block_size - Get the block size of the specified hash
mhash_get_hash_name - Get the name of the specified hash
mhash_keygen_s2k - Generates a key
mhash - Compute hash