sodium_crypto_generichash_final

(PHP 7 >= 7.2.0, PHP 8)

sodium_crypto_generichash_final — Complete the hash

说明

sodium_crypto_generichash_final ( string &$state , int $length = SODIUM_CRYPTO_GENERICHASH_BYTES ) : string

The finalization method for the streaming generichash API.

参数

state: Hash state returned from sodium_crypto_generichash_init()
length: Output length.

返回值

Cryptographic hash.

范例

Example #1 sodium_crypto_generichash_final() example


<?php
$messages = [random_bytes(32), random_bytes(32), random_bytes(16)];
$state = sodium_crypto_generichash_init('', 32);
foreach ($messages as $message) {
    sodium_crypto_generichash_update($state, $message);
}

$final = sodium_crypto_generichash_final($state, 32);
var_dump(sodium_bin2hex($final));

$allAtOnce = sodium_crypto_generichash(implode('', $messages));
var_dump(sodium_bin2hex($allAtOnce));
?>

以上例程的输出类似于：

string(64) "a2939a9163cb7c796ec28e01028489e72475c136b2697ea59e3e760ab4a8ab20"
string(64) "a2939a9163cb7c796ec28e01028489e72475c136b2697ea59e3e760ab4a8ab20"

User Contributed Notes

There are no user contributed notes for this page.