mirror of https://github.com/ARMmbed/mbed-os.git
167 lines
5.1 KiB
C
167 lines
5.1 KiB
C
/****************************************************************************
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*
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* Copyright 2020 Samsung Electronics All Rights Reserved.
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* SPDX-License-Identifier: Apache-2.0
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing,
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* software distributed under the License is distributed on an
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* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND,
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* either express or implied. See the License for the specific
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* language governing permissions and limitations under the License.
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*
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****************************************************************************/
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/*************** Include Files ********************************************/
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/* Driver Common */
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#include "sss_common.h"
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#include "sss_driver_util.h"
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#include "sss_map.h"
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#include "sss_driver_error.h"
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#include "mb_cmd_system.h"
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/* Driver Algorithm */
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#include "mb_cmd_hash.h"
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/*************** Assertions ***********************************************/
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/*************** Definitions / Macros *************************************/
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/*************** New Data Types (Basic Data Types) ***********************/
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/*************** New Data Types *******************************************/
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/*************** Constants ************************************************/
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/*************** Variable declarations ************************************/
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const unsigned char pu08hash_wlen[8] = { 0, 5, 7, 8, 12, 16, 0, 0 };
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/*************** Functions ***********************************************/
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/*! @fn mb_hash_init(unsigned int object_id, unsigned int msg_byte_len)
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* @ingroup SECURITY_SSS_MAILBOX
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* @brief mailbox api for hash to init. hash setting
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* @version v0.50 : 2016.8.13 Init. release version
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* @param[in] object_id : algorithm selection
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* @param[in] msg_byte_len : length of message with byte unit
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* @retval SUCCESS : Success
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* @retval Others(!=0) : fail - error from sub-function
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*/
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unsigned int mb_hash_init(
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const stOCTET_STRING *pstMessage,
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unsigned int object_id)
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{
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unsigned int ret;
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//! step 0 : check the status of mailbox
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if (SSS_MB_STATUS) {
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return ERROR_SYSTEM_MAILBOX_BUSY;
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}
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//! step 1-1 : set data field
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SSS_DATA_FIELD_SET(0U, pstMessage->u32DataByteLen);
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//! step 1-2 : set control field
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SSS_SET_MB_OID(object_id);
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//! step 2 : run mb_cmd
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ret = sss_mb_command(FUNC_HASH_INIT);
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return ret;
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}
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/*! @fn mb_hash_update(unsigned int block_byte_len, unsigned char * msg_block)
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* @ingroup SECURITY_SSS_MAILBOX
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* @brief mailbox api for hash to update partial block of message
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* @version v0.50 : 2016.8.13 Init. release version
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* @param[in] block_byte_len: length of partial block message. It differ from hash algorithm spec.
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* @param[in] msg_block : partial message block with block_byte_len
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* @retval SUCCESS : Success
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* @retval Others(!=0) : fail - error from sub-function
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*/
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unsigned int mb_hash_update(
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stOCTET_STRING *pstMessage,
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unsigned int block_byte_len)
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{
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int ret = SSSR_SUCCESS;
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//! step 1 : digest
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while (pstMessage->u32DataByteLen > MAX_MB_HASH_BLOCK_BLEN) {
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//! - check the status of mailbox
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if (SSS_MB_STATUS) {
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return ERROR_SYSTEM_MAILBOX_BUSY;
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}
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//! Set data field : message
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ret = _sss_OS_to_MB(pstMessage, (unsigned int *)(SSS_DATA_FIELD_BASE), MAX_MB_HASH_BLOCK_BLEN);
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if (ret != SSSR_SUCCESS) {
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return ret;
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}
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//! Run mb_cmd
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ret = sss_mb_command(FUNC_HASH_UPDATE);
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pstMessage->pu08Data += MAX_MB_HASH_BLOCK_BLEN;
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pstMessage->u32DataByteLen -= MAX_MB_HASH_BLOCK_BLEN;
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}
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return ret;
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}
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/*!
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* @ingroup SECURITY_SSS_MAILBOX
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* @brief mailbox api for hash to update partial block of message
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* @version v0.50 : 2016.8.13 Init. release version
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* @param[out] hash : hash output
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* @param[in] block_byte_len: length of last block message.
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* @param[in] msg_block : last message block with block_byte_len
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* @retval SUCCESS : Success
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* @retval Others(!=0) : fail - error from sub-function
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*/
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unsigned int mb_hash_final(
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stOCTET_STRING *pstMessage,
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stOCTET_STRING *pstDigest)
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{
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unsigned int ret;
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//! step 0 : check the status of mailbox
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if (SSS_MB_STATUS) {
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return ERROR_SYSTEM_MAILBOX_BUSY;
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}
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//! set data field
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// Check boudary of msg_block
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if (pstMessage->u32DataByteLen > MAX_MB_HASH_BLOCK_BLEN) {
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return ERROR_HASH_INVALID_LEN_BLOCK;
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}
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ret = _sss_OS_to_MB(pstMessage, (unsigned int *)(SSS_DATA_FIELD_BASE), pstMessage->u32DataByteLen);
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if (ret != SSSR_SUCCESS) {
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return ret;
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}
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//! step 2 : run mb_cmd
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ret = sss_mb_command(FUNC_HASH_FINAL);
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if (ret == SSSR_SUCCESS) {
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ret = sss_mb_get_response(pstDigest);
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}
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return ret;
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}
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