LXXVIII. Mhash Functions

Εισαγωγή

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.

Απαιτήσεις

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

Εγκατάσταση

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

Ρυθμίσεις κατά την εκτέλεση

Αυτή η επέκταση δεν έχει directives ρύθμισης ορισμένα στο php.ini.

Τύποι Πόρων

Αυτή η επέκταση δεν έχει resource τύπους ορισμένους.

Προκαθορισμένες Σταθερές

Οι σταθερές παρακάτω ορίζονται από αυτή την επέκταση, και θα είναι διαθέσιμες μόνο αν η επέκταση έχει γίνει compile μέσα στην PHP ή έχει φορτωθεί δυναμικά κατά την εκτέλεση.

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 If a hash is not listed here, but is listed by mhash as supported, you can safely assume that this documentation is outdated.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

Παραδείγματα

ÐáñÜäåéãìá 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

Ðßíáêáò Ðåñéå÷ïìÝíùí
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