Is there any computer/server which would allow me to get "guaranteed read access history" for files?
For example, suppose I made a file with my plaintext passwords and simply wanted to make sure that those bits have not been read by anyone. In principle, a hard disk controller could log every read operation and have the ability to create a "DSA-signed timestamped history report" for any bit. But, to be strict, I also want the hard disk hardware to be configured in such a way that no software or firmware change could fool me. I realize that a harware change could always fool me, and therefore my "guaranteed" definition stops as close to that limit as possible.
I think the above approach results in a TPM with an added "un-resetable logging" feature, but am guessing such a TPM does not exist. If there's an alternative method available now, please let me know...maybe I'm over-engineering this. I basically want to know with high certainty that no one has looked at my passwords, but still have the option to look in case I forget one.