But you've handed them the data. You gave them (or let them take) the hard drive. You've opened the safe. Now they're expecting you to explain its contents and

But you've handed them the data. You gave them (or let them take) the hard drive. You've opened the safe. Now they're expecting you to explain its contents and how they incriminate you. I am required to open my safe for you. I am not required to decode the encryption I perform by hand (or with my graphing calculator).