122         if (empty($header->alg)) {
125         if (empty(static::$supported_algs[$header->alg])) {
132         if (!self::constantTimeEquals($key->getAlgorithm(), $header->alg)) {
136         if ($header->alg === 'ES256' || $header->alg === 'ES384') {
140         if (!self::verify("$headb64.$bodyb64", $sig, $key->getKeyMaterial(), $header->alg)) {
174 …* @param string                $alg     Supported algorithms are 'ES384','ES256', 'HS256', 'HS384',
187         string $alg,  argument
191         $header = ['typ' => 'JWT', 'alg' => $alg];
203         $signature = static::sign($signing_input, $key, $alg);
214      * @param string $alg  Supported algorithms are 'ES384','ES256', 'HS256', 'HS384',
224         string $alg  argument
226         if (empty(static::$supported_algs[$alg])) {
229         list($function, $algorithm) = static::$supported_algs[$alg];
242                 if ($alg === 'ES256') {
244                 } elseif ($alg === 'ES384') {
275      * @param string $alg         The algorithm
285         string $alg  argument
287         if (empty(static::$supported_algs[$alg])) {
291         list($function, $algorithm) = static::$supported_algs[$alg];