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File Name : crypto_auth.phpt

--TEST--
Check for libsodium auth
--SKIPIF--
<?php if (!extension_loaded("sodium")) print "skip"; ?>
--FILE--
<?php
$msg = random_bytes(1000);
$key = sodium_crypto_auth_keygen();
$mac = sodium_crypto_auth($msg, $key);

// This should validate
var_dump(sodium_crypto_auth_verify($mac, $msg, $key));

$bad_key = random_bytes(SODIUM_CRYPTO_AUTH_KEYBYTES - 1);
try {
    $mac = sodium_crypto_auth($msg, $bad_key);
    echo 'Fail!', PHP_EOL;
} catch (SodiumException $ex) {
  echo $ex->getMessage(), PHP_EOL;
}

// Flip the first bit
$badmsg = $msg;
$badmsg[0] = \chr(\ord($badmsg[0]) ^ 0x80);
var_dump(sodium_crypto_auth_verify($mac, $badmsg, $key));

// Let's flip a bit pseudo-randomly
$badmsg = $msg;
$badmsg[$i=mt_rand(0, 999)] = \chr(
    \ord($msg[$i]) ^ (
        1 << mt_rand(0, 7)
    )
);

var_dump(sodium_crypto_auth_verify($mac, $badmsg, $key));

// Now let's change a bit in the MAC
$badmac = $mac;
$badmac[0] = \chr(\ord($badmac[0]) ^ 0x80);
var_dump(sodium_crypto_auth_verify($badmac, $msg, $key));
?>
--EXPECT--
bool(true)
key must be SODIUM_CRYPTO_AUTH_KEYBYTES bytes
bool(false)
bool(false)
bool(false)

Name	Type	Size	Owner/Group	Permission	Last Modified	Actions
.	dir	-	root/root	0755	2026-01-21 04:55:51
..	dir	-	root/root	0755	2026-01-21 04:55:51
crypto_aead.phpt	text/plain	6.66 KB	root/root	0644	2025-05-29 02:48:16
crypto_auth.phpt	text/plain	1.09 KB	root/root	0644	2025-05-29 02:48:16
crypto_box.phpt	text/plain	5.09 KB	root/root	0644	2025-05-29 02:48:16
crypto_generichash.phpt	text/plain	2.86 KB	root/root	0644	2025-05-29 02:48:16
crypto_hex.phpt	text/plain	426 B	root/root	0644	2025-05-29 02:48:16
crypto_kdf.phpt	text/plain	1.48 KB	root/root	0644	2025-05-29 02:48:16
crypto_kx.phpt	text/plain	1.58 KB	root/root	0644	2025-05-29 02:48:16
crypto_scalarmult.phpt	text/plain	582 B	root/root	0644	2025-05-29 02:48:16
crypto_secretbox.phpt	text/plain	613 B	root/root	0644	2025-05-29 02:48:16
crypto_secretstream.phpt	text/plain	1.98 KB	root/root	0644	2025-05-29 02:48:16
crypto_shorthash.phpt	text/plain	607 B	root/root	0644	2025-05-29 02:48:16
crypto_sign.phpt	text/plain	2.88 KB	root/root	0644	2025-05-29 02:48:16
crypto_stream.phpt	text/plain	1.16 KB	root/root	0644	2025-05-29 02:48:16
exception_trace_without_args.phpt	text/plain	421 B	root/root	0644	2025-05-29 02:48:16
inc_add.phpt	text/plain	909 B	root/root	0644	2025-05-29 02:48:16
installed.phpt	text/plain	554 B	root/root	0644	2025-05-29 02:48:16
pwhash_argon2i.phpt	text/plain	1.52 KB	root/root	0644	2025-05-29 02:48:16
utils.phpt	text/plain	3.45 KB	root/root	0644	2025-05-29 02:48:16
version.phpt	text/plain	284 B	root/root	0644	2025-05-29 02:48:16

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