Руководство по PHP
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# hash_hmac

(no version information, might be only in CVS)

hash_hmac -- Generate a keyed hash value using the HMAC method

## Описание

string hash_hmac ( string algo, string data, string key [, bool raw_output] )

## Список параметров

algo

  Name of selected hashing algorithm (i.e. "md5", "sha256", "haval160,4", etc..)

data

  Message to be hashed.

key

  Shared secret key used for generating the HMAC variant of the message digest.

raw_output

  When set to `TRUE`, outputs raw binary data. Default value (`FALSE`) outputs lowercase hexits.

## Возвращаемые значения

Returns a string containing the calculated message digest as lowercase hexits unless raw_output is set to true in which case the raw binary representation of the message digest is returned.

## Примеры

Пример 1. hash_hmac() example

`<?php echo hash_hmac('ripemd160', 'The quick brown fox jumped over the lazy dog.', 'secret'); ?>`

Результат выполнения данного примера:

    b8e7ae12510bdfb1812e463a7f086122cf37e4f7

## Смотрите также

hash()
hash_init()
hash_hmac_file()

Пред. | Начало | След.
hash_hmac_file | Уровень выше | hash_init