From: "Hook, Gary" Gary.Hook@amd.com
[ Upstream commit c3b359d6567c0b8f413e924feb37cf025067d55a ]
Updated testmgr will exhibit this error message when loading the ccp-crypto module:
alg: skcipher: cfb-aes-ccp encryption failed with err -22 on test vector 3, cfg="in-place"
Update the CCP crypto driver to correctly treat CFB as a streaming mode cipher (instead of block mode). Update the configuration for CFB to specify the block size as a single byte;
Fixes: 2b789435d7f3 ('crypto: ccp - CCP AES crypto API support')
Signed-off-by: Gary R Hook gary.hook@amd.com Signed-off-by: Herbert Xu herbert@gondor.apana.org.au Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/crypto/ccp/ccp-crypto-aes.c | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-)
diff --git a/drivers/crypto/ccp/ccp-crypto-aes.c b/drivers/crypto/ccp/ccp-crypto-aes.c index 89291c15015c..3f768699332b 100644 --- a/drivers/crypto/ccp/ccp-crypto-aes.c +++ b/drivers/crypto/ccp/ccp-crypto-aes.c @@ -1,7 +1,8 @@ +// SPDX-License-Identifier: GPL-2.0 /* * AMD Cryptographic Coprocessor (CCP) AES crypto API support * - * Copyright (C) 2013,2016 Advanced Micro Devices, Inc. + * Copyright (C) 2013-2019 Advanced Micro Devices, Inc. * * Author: Tom Lendacky thomas.lendacky@amd.com * @@ -79,8 +80,7 @@ static int ccp_aes_crypt(struct ablkcipher_request *req, bool encrypt) return -EINVAL;
if (((ctx->u.aes.mode == CCP_AES_MODE_ECB) || - (ctx->u.aes.mode == CCP_AES_MODE_CBC) || - (ctx->u.aes.mode == CCP_AES_MODE_CFB)) && + (ctx->u.aes.mode == CCP_AES_MODE_CBC)) && (req->nbytes & (AES_BLOCK_SIZE - 1))) return -EINVAL;
@@ -291,7 +291,7 @@ static struct ccp_aes_def aes_algs[] = { .version = CCP_VERSION(3, 0), .name = "cfb(aes)", .driver_name = "cfb-aes-ccp", - .blocksize = AES_BLOCK_SIZE, + .blocksize = 1, .ivsize = AES_BLOCK_SIZE, .alg_defaults = &ccp_aes_defaults, },