src/Leevel/Encryption/Encryption.php
protected function packDataWithIv(string $value, string $iv): string
    {
        return base64_encode(base64_encode($value)."\t".base64_encode($iv));
    }
protected function packDataWithIv(string $value, string $iv): string
    {
        return base64_encode(base64_encode($value)."\t".base64_encode($iv));
    }
数据加入向量并打包.

@param string $value
@param string $iv

@return string