crypto: ccp - AES CFB mode is a stream cipher (499df967) · Commits · 戴 / test

CFB mode should be treated as a stream cipher, not block. Fixes: ('crypto: ccp - CCP device driver and interface support') Signed-off-by:

drivers/crypto/ccp/ccp-ops.c

+3 −3

Original line number	Diff line number	Diff line
		// SPDX-License-Identifier: GPL-2.0
		/*
		* AMD Cryptographic Coprocessor (CCP) driver
		*
		* Copyright (C) 2013,2018 Advanced Micro Devices, Inc.
		* Copyright (C) 2013-2019 Advanced Micro Devices, Inc.
		*
		* Author: Tom Lendacky <thomas.lendacky@amd.com>
		* Author: Gary R Hook <gary.hook@amd.com>
		@@ -893,8 +894,7 @@ static int ccp_run_aes_cmd(struct ccp_cmd_queue cmd_q, struct ccp_cmd cmd)
		return -EINVAL;

		if (((aes->mode == CCP_AES_MODE_ECB) \|\|
		(aes->mode == CCP_AES_MODE_CBC) \|\|
		(aes->mode == CCP_AES_MODE_CFB)) &&
		(aes->mode == CCP_AES_MODE_CBC)) &&
		(aes->src_len & (AES_BLOCK_SIZE - 1)))
		return -EINVAL;