Hash

hash_algos

<?php

var_dump(hash_algos());

hash_copy

<?php

$context = hash_init('md5');
var_dump(hash_copy($context));

hash_equals

<?php

var_dump(hash_equals(hash('md5', 'password'), hash('md5', 'password')));       // bool(true)
var_dump(hash_equals(hash('sha256', 'password'), hash('sha256', 'password'))); // bool(true)
var_dump(hash_equals(hash('sha256', 'password'), hash('sha256', 'test')));     // bool(false)

hash_file

<?php

var_dump(hash_file('md5', __DIR__ . '/example.txt'));
var_dump(hash_file('sha256', __DIR__ . '/example.txt'));

hash_final

<?php

$context = hash_init('md5');
hash_update($context, 'foo');
var_dump(hash_final($context)); // string(32) "acbd18db4cc2f85cedef654fccc4a4d8"

hash_hkdf

<?php

var_dump(hash_hkdf('sha256', random_bytes(32), 32, 'aes-256-encryption', random_bytes(16)));

hash_hmac_algos

<?php

var_dump(hash_hmac_algos());

hash_hmac_file

<?php

var_dump(hash_hmac_file('sha256', __DIR__ . '/example.txt', '._._._'));

hash_hmac

<?php

var_dump(hash_hmac('sha256', 'foo', '._._._')); // string(64) "60436878fe4a16fa3a3cd9f14f3c21971011f5f3cefaac64fe2a3f47ff82a6e8"

hash_init

<?php

var_dump(hash_init('md5'));
var_dump(hash_init('sha256'));

hash_pbkdf2

<?php

$algo = 'sha256';
$password = 'password';
$salt = openssl_random_pseudo_bytes(16);
$iterations = 1000;
var_dump(hash_pbkdf2($algo, $password, $salt, $iterations));
var_dump(hash_pbkdf2($algo, $password, $salt, $iterations, 0));
var_dump(hash_pbkdf2($algo, $password, $salt, $iterations, 20));

hash_update_file

<?php

$context = hash_init('md5');
hash_update_file($context, __DIR__ . '/example.txt');
var_dump(hash_final($context));

hash_update_stream

<?php

$context = hash_init('md5');
$handle = fopen(__DIR__ . '/example.txt', 'r');
hash_update_stream($context, $handle);
var_dump(hash_final($context));

hash_update

<?php

$context = hash_init('md5');
hash_update($context, 'foo');
var_dump(hash_final($context)); // string(32) "acbd18db4cc2f85cedef654fccc4a4d8"

hash

<?php

var_dump(hash('md5', 'password'));    // string(32) "5f4dcc3b5aa765d61d8327deb882cf99"
var_dump(hash('sha256', 'password')); // string(64) "5e884898da28047151d0e56f8dc6292773603d0d6aabbdd62a11ef721d1542d8"

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