解密程序的以下代码对我有用：
public function decrypt($data, $key) { $salt = substr($data, 0, 128); $enc = substr($data, 128, -64); $mac = substr($data, -64); list ($cipherKey, $macKey, $iv) = $this->getKeys($salt, $key); if ($mac !== hash_hmac('sha512', $enc, $macKey, true)) { return false; } $dec = openssl_decrypt($enc, $this->cipher, $cipherKey, OPENSSL_RAW_DATA, $iv); return $dec;}测试：
$keys = [ 'this is a secret key.', 'G906m70p(IhzA5T&5x7(w0%a631)u)%D6E79cIYJQ!iP2U(xT13q6)tJ6gZ3D2wi&0")7cP5', chr(6) . chr(200) . chr(16) . 'my key ' . chr(3) . chr(4) . chr(192) . chr(254) . ' zyx0987!!', 'and finally one more key to test with here:',];$data = [ 'A', 'This is a test', 'now test encrypting something a little bit longer with 1234567890.', '$length = mcrypt_get_block_size(MCRYPT_BLOWFISH, MCRYPT_MODE_CBC); $last = ord($data[strlen($data) - 1]);', 'Lorem ipsum dolor sit amet, consectetur adipiscing elit. Donec sit amet pharetra urna. Vestibulum ante ipsum primis in faucibus orci luctus et ultrices posuere cubilia Curae; Ut fringilla, quam sed eleifend eleifend, justo turpis consectetur tellus, quis tristique eros erat at nibh. Nunc dictum neque vel diam molestie fermentum. Pellentesque dignissim dui quis tortor eleifend, ut maximus elit egestas. Donec posuere odio et auctor porta. Quisque placerat condimentum maximus. Curabitur luctus dolor eget sem luctus, in dignissim tortor venenatis. Mauris eget nulla nisl.',];$failures = 0;foreach ($data as $datum) { foreach ($keys as $key) { $enc = new Encryption(MCRYPT_BLOWFISH, MCRYPT_MODE_CBC); $encrypted = $enc->encrypt($datum, $key); $dec = new EncryptionOpenSsl('bf-cbc'); $decrypted = $dec->decrypt($encrypted, $key); if (strcmp($datum, $decrypted) !== 0) { echo "Encryption with key '$key' of '$datum' failed. '$decrypted' != '$datum'<br><br>nn"; $failures++; } }}if ($failures) { echo "$failures tests failed.<br>n";} else { echo "ALL OKAY<br>n";}如果您可以确定它也适用，那么我可以整理答案并添加最终的工作代码。
