XMLSecurityDSig::calculateDigest PHP Méthode

    public function calculateDigest($digestAlgorithm, $data, $encode = true)
    {
        switch ($digestAlgorithm) {
            case XMLSecurityDSig::SHA1:
                $alg = 'sha1';
                break;
            case XMLSecurityDSig::SHA256:
                $alg = 'sha256';
                break;
            case XMLSecurityDSig::SHA384:
                $alg = 'sha384';
                break;
            case XMLSecurityDSig::SHA512:
                $alg = 'sha512';
                break;
            case XMLSecurityDSig::RIPEMD160:
                $alg = 'ripemd160';
                break;
            default:
                throw new Exception("Cannot validate digest: Unsupported Algorithm <{$digestAlgorithm}>");
        }
        $digest = hash($alg, $data, true);
        if ($encode) {
            $digest = base64_encode($digest);
        }
        return $digest;
    }