linux-master/crypto/keywrap.c

92 #define SEMIBSIZE 8
98  * Fast forward the SGL to the "end" length minus SEMIBSIZE.
109 	BUG_ON(end < SEMIBSIZE);
111 	skip = end - SEMIBSIZE;
138 	if (req->cryptlen < (2 * SEMIBSIZE) || req->cryptlen % SEMIBSIZE)
142 	memcpy(&block.A, req->iv, SEMIBSIZE);
160 			scatterwalk_copychunks(&block.R, &src_walk, SEMIBSIZE,
173 			scatterwalk_copychunks(&block.R, &dst_walk, SEMIBSIZE,
176 			nbytes -= SEMIBSIZE;
208 	if (req->cryptlen < (2 * SEMIBSIZE) || req->cryptlen % SEMIBSIZE)
234 			scatterwalk_copychunks(&block.R, &src_walk, SEMIBSIZE,
245 			scatterwalk_copychunks(&block.R, &dst_walk, SEMIBSIZE,
248 			nbytes -= SEMIBSIZE;
257 	memcpy(req->iv, &block.A, SEMIBSIZE);
281 	inst->alg.base.cra_blocksize = SEMIBSIZE;
283 	inst->alg.ivsize = SEMIBSIZE;