On Thu, Feb 04, 2021 at 04:43:54PM -0500, Thara Gopinath wrote: > + /* > + * ECB and CBC algorithms require message lengths to be > + * multiples of block size. > + * TODO: The spec says AES CBC mode for certain versions > + * of crypto engine can handle partial blocks as well. > + * Test and enable such messages. > + */ > + if (IS_ECB(rctx->flags) || IS_CBC(rctx->flags)) > + if (!IS_ALIGNED(req->cryptlen, blocksize)) > + return -EINVAL; CBC by definition only operates on full blocks, so the TODO doesn't make sense. Is the partial block support really CTS-CBC? - Eric
