I am looking for a Linux based encryption system (like Truecrypt) that has the ability to do the following:
Encrypt a partition or external drive that it can only be read from the same computer where it was encrypted. If the partition or external drive is brought to another computer it will not read the drive. Basically it depends on the hardware.
If used on the same computer where it was encrypted it will load without asking for a password or anything else.
I have been reading the truecrypt manual but have not yet found an option or feature that shows me if this is possible.