src/MiniProgram/Encryption/Encryptor.php
public function decryptData($sessionKey, $iv, $encrypted)
    {
        try {
            $decrypted = openssl_decrypt(
                base64_decode($encrypted, true), 'aes-128-cbc', base64_decode($sessionKey, true),
                OPENSSL_RAW_DATA | OPENSSL_NO_PADDING, base64_decode($iv, true)
            );
        } catch (Exception $e) {
            throw new EncryptionException($e->getMessage(), EncryptionException::ERROR_DECRYPT_AES);
        }

        if (is_null($result = json_decode($this->decode($decrypted), true))) {
            throw new EncryptionException('ILLEGAL_BUFFER', EncryptionException::ILLEGAL_BUFFER);
        }

        return $result;
    }
public function decryptData($sessionKey, $iv, $encrypted)
    {
        try {
            $decrypted = openssl_decrypt(
                base64_decode($encrypted, true), 'aes-128-cbc', base64_decode($sessionKey, true),
                OPENSSL_RAW_DATA | OPENSSL_NO_PADDING, base64_decode($iv, true)
            );
        } catch (Exception $e) {
            throw new EncryptionException($e->getMessage(), EncryptionException::ERROR_DECRYPT_AES);
        }

        if (is_null($result = json_decode($this->decode($decrypted), true))) {
            throw new EncryptionException('ILLEGAL_BUFFER', EncryptionException::ILLEGAL_BUFFER);
        }

        return $result;
    }
Decrypt data.

@param string $sessionKey
@param string $iv
@param string $encrypted

@return array