Introduzione

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.

Requisiti

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

Installazione

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

Configurazione di Runtime

Questa estensione non definisce alcuna direttiva di configurazione in php.ini

Tipi di risorse

Questa estensione non definisce alcun tipo di risorsa.

Costanti predefinite

Queste costanti sono definite da questa estensione e sono disponibili solo se l'estensione è stata compilata nel PHP o se è stata caricata dinamicamente a runtime.

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 If a hash is not listed here, but is listed by mhash as supported, you can safely assume that this documentation is outdated.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_MD5

• MHASH_SHA1

• MHASH_HAVAL256

• MHASH_HAVAL192

• MHASH_HAVAL160

• MHASH_HAVAL128

• MHASH_RIPEMD160

• MHASH_GOST

• MHASH_TIGER

• MHASH_CRC32

• MHASH_CRC32B

Esempi

Esempio 1. 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