sodium_crypto_generichash_update

(PHP 7 >= 7.2.0, PHP 8)

sodium_crypto_generichash_update — Add message to a hash

Descrição

sodium_crypto_generichash_update(string &$state, string $message): true

Appends a message to the internal hash state.

Parâmetros

state

The return value of sodium_crypto_generichash_init().

message

Data to append to the hashing state.

Valor Retornado

Sempre retorna true.

Exemplos

Example #1 sodium_crypto_generichash_update() example

<?php
$messages = [random_bytes(32), random_bytes(32), random_bytes(16)];
$state = sodium_crypto_generichash_init();
foreach ($messages as $message) {
    sodium_crypto_generichash_update($state, $message);
}
$final = sodium_crypto_generichash_final($state);
var_dump(sodium_bin2hex($final));

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

O exemplo acima produzirá algo semelhante a:

string(64) "e16e28bbbbcc39d9f5b1cbc33c41f1d217808640103e57a41f24870f79831e04"
string(64) "e16e28bbbbcc39d9f5b1cbc33c41f1d217808640103e57a41f24870f79831e04"