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OpenSSL > libsodium, authenticate username, PHP 8.2+

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This commit is contained in:
Miraty 2023-01-18 16:00:17 +01:00
parent 5f22b0ccbb
commit 6b1b3547c3
2 changed files with 14 additions and 16 deletions
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19
fn/auth.php
View file

@ -63,17 +63,16 @@ function logout() {
}
function setupDisplayUsername($display_username) {
$iv = random_bytes(12);
$key = random_bytes(64);
$cyphertext = openssl_encrypt(
$nonce = random_bytes(24);
$key = sodium_crypto_aead_xchacha20poly1305_ietf_keygen();
$cyphertext = sodium_crypto_aead_xchacha20poly1305_ietf_encrypt(
htmlspecialchars($display_username),
'chacha20-poly1305',
$key,
0,
$iv
NULL,
$nonce,
$key
);
$_SESSION['display-username-iv'] = $iv;
$_SESSION['display-username-nonce'] = $nonce;
setcookie(
'display-username-decryption-key',
base64_encode($key),
@ -106,7 +105,7 @@ function rateLimitAccount($requestedTokens) {
$tokens = min(86400, $tokens + (time() - $bucketLastUpdate));
if ($requestedTokens > $tokens)
output(453, 'Limite d\'actions par compte atteinte. Réessayez plus tard.');
output(453, _('Account rate limit reached, try again later.'));
$tokens -= $requestedTokens;
@ -128,7 +127,7 @@ function rateLimitInstance($requestedTokens) {
$tokens = min(86400, $tokens + (time() - $bucketLastUpdate));
if ($requestedTokens > $tokens)
output(453, 'Limite d\'actions globale atteinte. Réessayez plus tard.');
output(453, _('Global rate limit reached, try again later.'));
$tokens -= $requestedTokens;

11
router.php
View file

@ -111,13 +111,12 @@ if ($_POST !== []) {
if (isset($_SESSION['id'])) {
if (!isset($_COOKIE['display-username-decryption-key']))
output(403, 'The display username decryption key has not been sent.');
$decryption_result = openssl_decrypt(
$decryption_result = htmlspecialchars(sodium_crypto_aead_xchacha20poly1305_ietf_decrypt(
$_SESSION['display-username-cyphertext'],
'chacha20-poly1305',
base64_decode($_COOKIE['display-username-decryption-key']),
0,
$_SESSION['display-username-iv']
);
NULL,
$_SESSION['display-username-nonce'],
base64_decode($_COOKIE['display-username-decryption-key'])
));
if ($decryption_result === false)
output(403, 'Unable to decrypt display username.');
define('DISPLAY_USERNAME', $decryption_result);