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<?php |
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/** |
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* This file is part of the O2System Framework package. |
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* |
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* For the full copyright and license information, please view the LICENSE |
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* file that was distributed with this source code. |
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* |
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* @author Steeve Andrian Salim |
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* @copyright Copyright (c) Steeve Andrian Salim |
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*/ |
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// ------------------------------------------------------------------------ |
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namespace O2System\Security\Generators; |
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// ------------------------------------------------------------------------ |
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use O2System\Security\Encryptions\Algorithm; |
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use O2System\Security\Encryptions\Hmac; |
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/** |
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* Class Signature |
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* @package O2System\Security\Generators |
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*/ |
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class Signature |
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{ |
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/** |
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* Signature::generate |
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* |
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* @param array $segments |
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* @param string $key |
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* @param string $algorithm |
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* |
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* @return bool|string |
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* @throws \O2System\Spl\Exceptions\Logic\DomainException |
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*/ |
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public static function generate(array $segments, $key, $algorithm = 'HS256') |
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{ |
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if (count($segments) == 2) { |
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$data = implode('.', $segments); |
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if (Algorithm::validate($algorithm)) { |
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list($function, $algorithm) = Algorithm::map($algorithm); |
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switch ($function) { |
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case 'HMAC': |
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return Hmac::hash($algorithm, $data, $key, true); |
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case 'hash_hmac': |
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return hash_hmac($algorithm, $data, $key, true); |
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case 'openssl': |
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return openssl_sign($data, $signature, $key, $algorithm); |
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} |
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} |
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} |
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return false; |
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} |
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// ------------------------------------------------------------------------ |
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/** |
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* Signature::verify |
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* |
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* Verify token with signature. |
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* |
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* @param string $token |
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* @param string $signature |
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* @param string $key |
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* @param string $algorithm |
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* |
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* @return bool |
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*/ |
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public static function verify($token, $signature, $key, $algorithm = 'HS256') |
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{ |
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$segments = explode('.', $token); |
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$segments = array_map('trim', $segments); |
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if (count($segments) == 3) { |
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array_pop($segments); |
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$data = implode('.', $segments); |
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if (Algorithm::validate($algorithm)) { |
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list($function, $algorithm) = Algorithm::map($algorithm); |
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switch ($function) { |
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case 'HMAC': |
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return Hmac::hash($algorithm, $data, $key, true) === $signature; |
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case 'hash_hmac': |
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return hash_hmac($algorithm, $data, $key, true) === $signature; |
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case 'openssl': |
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switch ($algorithm) { |
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case 'RS256': |
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return (bool)openssl_verify($data, $signature, $key, OPENSSL_ALGO_SHA1); |
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case 'RS256': |
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return (bool)openssl_verify($data, $signature, $key, OPENSSL_ALGO_SHA256); |
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case 'RS384': |
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return (bool)openssl_verify($data, $signature, $key, OPENSSL_ALGO_SHA384); |
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case 'RS512': |
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return (bool)openssl_verify($data, $signature, $key, OPENSSL_ALGO_SHA512); |
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} |
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} |
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} |
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} |
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return false; |
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} |
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} |
o2system /
security
