3  * AMD Cryptographic Coprocessor (CCP) AES CMAC crypto API support
16 #include <crypto/aes.h>
69 	if (!ctx->u.aes.key_len)  in ccp_do_cmac_update()
153 		cmac_key_sg = (need_pad) ? &ctx->u.aes.k2_sg  in ccp_do_cmac_update()
154 					 : &ctx->u.aes.k1_sg;  in ccp_do_cmac_update()
159 	rctx->cmd.u.aes.type = ctx->u.aes.type;  in ccp_do_cmac_update()
160 	rctx->cmd.u.aes.mode = ctx->u.aes.mode;  in ccp_do_cmac_update()
161 	rctx->cmd.u.aes.action = CCP_AES_ACTION_ENCRYPT;  in ccp_do_cmac_update()
162 	rctx->cmd.u.aes.key = &ctx->u.aes.key_sg;  in ccp_do_cmac_update()
163 	rctx->cmd.u.aes.key_len = ctx->u.aes.key_len;  in ccp_do_cmac_update()
164 	rctx->cmd.u.aes.iv = &rctx->iv_sg;  in ccp_do_cmac_update()
165 	rctx->cmd.u.aes.iv_len = AES_BLOCK_SIZE;  in ccp_do_cmac_update()
166 	rctx->cmd.u.aes.src = sg;  in ccp_do_cmac_update()
167 	rctx->cmd.u.aes.src_len = rctx->hash_cnt;  in ccp_do_cmac_update()
168 	rctx->cmd.u.aes.dst = NULL;  in ccp_do_cmac_update()
169 	rctx->cmd.u.aes.cmac_key = cmac_key_sg;  in ccp_do_cmac_update()
170 	rctx->cmd.u.aes.cmac_key_len = ctx->u.aes.kn_len;  in ccp_do_cmac_update()
171 	rctx->cmd.u.aes.cmac_final = final;  in ccp_do_cmac_update()
264 	struct crypto_aes_ctx aes;  in ccp_aes_cmac_setkey()  local
270 		ctx->u.aes.type = CCP_AES_TYPE_128;  in ccp_aes_cmac_setkey()
273 		ctx->u.aes.type = CCP_AES_TYPE_192;  in ccp_aes_cmac_setkey()
276 		ctx->u.aes.type = CCP_AES_TYPE_256;  in ccp_aes_cmac_setkey()
281 	ctx->u.aes.mode = alg->mode;  in ccp_aes_cmac_setkey()
284 	ctx->u.aes.key_len = 0;  in ccp_aes_cmac_setkey()
286 	/* Set the key for the AES cipher used to generate the keys */  in ccp_aes_cmac_setkey()
287 	ret = aes_expandkey(&aes, key, key_len);  in ccp_aes_cmac_setkey()
292 	memset(ctx->u.aes.key, 0, sizeof(ctx->u.aes.key));  in ccp_aes_cmac_setkey()
293 	aes_encrypt(&aes, ctx->u.aes.key, ctx->u.aes.key);  in ccp_aes_cmac_setkey()
294 	memzero_explicit(&aes, sizeof(aes));  in ccp_aes_cmac_setkey()
297 	k0_hi = be64_to_cpu(*((__be64 *)ctx->u.aes.key));  in ccp_aes_cmac_setkey()
298 	k0_lo = be64_to_cpu(*((__be64 *)ctx->u.aes.key + 1));  in ccp_aes_cmac_setkey()
302 	if (ctx->u.aes.key[0] & 0x80) {  in ccp_aes_cmac_setkey()
306 	gk = (__be64 *)ctx->u.aes.k1;  in ccp_aes_cmac_setkey()
313 	if (ctx->u.aes.k1[0] & 0x80) {  in ccp_aes_cmac_setkey()
317 	gk = (__be64 *)ctx->u.aes.k2;  in ccp_aes_cmac_setkey()
322 	ctx->u.aes.kn_len = sizeof(ctx->u.aes.k1);  in ccp_aes_cmac_setkey()
323 	sg_init_one(&ctx->u.aes.k1_sg, ctx->u.aes.k1, sizeof(ctx->u.aes.k1));  in ccp_aes_cmac_setkey()
324 	sg_init_one(&ctx->u.aes.k2_sg, ctx->u.aes.k2, sizeof(ctx->u.aes.k2));  in ccp_aes_cmac_setkey()
327 	memset(ctx->u.aes.key, 0, sizeof(ctx->u.aes.key));  in ccp_aes_cmac_setkey()
328 	memcpy(ctx->u.aes.key, key, key_len);  in ccp_aes_cmac_setkey()
329 	ctx->u.aes.key_len = key_len;  in ccp_aes_cmac_setkey()
330 	sg_init_one(&ctx->u.aes.key_sg, ctx->u.aes.key, key_len);  in ccp_aes_cmac_setkey()
341 	ctx->u.aes.key_len = 0;  in ccp_aes_cmac_cra_init()
379 	snprintf(base->cra_name, CRYPTO_MAX_ALG_NAME, "cmac(aes)");  in ccp_register_aes_cmac_algs()
380 	snprintf(base->cra_driver_name, CRYPTO_MAX_ALG_NAME, "cmac-aes-ccp");  in ccp_register_aes_cmac_algs()