What this means is that 7-Zip can afford to use the well-understood CTR or CBC block cipher modes. Meanwhile, TrueCrypt has to use XTS, which makes a number of compromises in order to satisfy the additional constraints of full-disk encryption.
What this means is that 7-Zip can afford to use the well-understood CTR or CBC block cipher modes. Meanwhile, TrueCrypt has to use XTS, which makes a number of compromises in order to satisfy the additional constraints of full-disk encryption.