sodium_crypto_auth()

(PHP 7 >= 7.2.0)

Compute a tag for the message

说明

sodium_crypto_auth(string $msg,string $key): string

Warning

本函数还未编写文档，仅有参数列表。

参数

$msg

$key

返回值

Here's a quick example on how to use sodium_crypto_auth(); where you have a message that you want to sign, so anyone who can access the *shared* key can confirm that the message hasn't been tampered with.
This is similar to sodium_crypto_sign_detached(), but both signer and verifier have access to the same key.
<?php
$key = sodium_crypto_auth_keygen();
//--------------------------------------------------
// Person 1, signing
$message = 'Hello';
$signature = sodium_crypto_auth($message, $key);
//--------------------------------------------------
// Person 2, verifying
$message_valid = sodium_crypto_auth_verify($signature, $message, $key);
if (!$message_valid) {
  exit('Message has been changed.');
}
?>