voku / swiftmailer

    {

        $this->signCertificate = 'file://' . str_replace('\\', '/', realpath($certificate));

        if (null !== $privateKey) {

            if (is_array($privateKey)) {

                $this->signPrivateKey = $privateKey;

                $this->signPrivateKey[0] = 'file://' . str_replace('\\', '/', realpath($privateKey[0]));

            } else {

                $this->signPrivateKey = 'file://' . str_replace('\\', '/', realpath($privateKey));

            }

        }

        $this->signOptions = $signOptions;

        if (null !== $extraCerts) {

     */

    public function setEncryptCertificate($recipientCerts, $cipher = null)

    {

        if (is_array($recipientCerts)) {

            $this->encryptCert = array();

            foreach ($recipientCerts as $cert) {

                $this->encryptCert[] = 'file://' . str_replace('\\', '/', realpath($cert));

            }

        } else {

            $this->encryptCert = 'file://' . str_replace('\\', '/', realpath($recipientCerts));

        }

        if (null !== $cipher) {

            $this->encryptCipher = $cipher;