My question relates to the hardware encryption of samsungs 840 Evo SSD (maybe also other models):
The theory: Samsung specifies that their SSD encrypts each data with AES by default. So if I choose a HDD password in my bios, I can protect my whole disk (instead of encrypting e.g. my personal data folder later). If I understood it correctly, then using this hdd password, does not change the performance of the ssd, because the encryption happens anyway (with or without the hdd password). The only difference is that I have to enter my password when the BIOS starts.
This seems a pretty good security feature, because all data are protected (protecting e.g. against thiefs) and there is no perfomance gap.
Unfortunately, I do not find any information or tests confirming samsung's claim. Is it really so simple to use? Are there disadvantages?
And by the way? What is the relation to trusted computing? To be honest, I only heard bad things about this topic.