Modes of operation that simply uses the tweak of a tweakable block cipher
Many people want a "seekable cipher", which implies that they can't use chaining modes.(a) (b)
So far I've seen 3 ways to build such a cipher:


XTS: "XEX-based tweaked-codebook mode with ciphertext stealing (XTS)" is used in most modern "full-disk encryption" systems. (c)
CTR: "Counter mode (CTR)" (d)
OCB "Offset Codebook Mode (OCB)" (e)