1 /*
2  * Copyright (C) 2022 Huawei Device Co., Ltd.
3  * Licensed under the Apache License, Version 2.0 (the "License");
4  * you may not use this file except in compliance with the License.
5  * You may obtain a copy of the License at
6  *
7  *     http://www.apache.org/licenses/LICENSE-2.0
8  *
9  * Unless required by applicable law or agreed to in writing, software
10  * distributed under the License is distributed on an "AS IS" BASIS,
11  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12  * See the License for the specific language governing permissions and
13  * limitations under the License.
14  */
15 
16 #ifndef FILLP_SHA256_H
17 #define FILLP_SHA256_H
18 
19 #include "fillptypes.h"
20 
21 #ifdef __cplusplus
22 extern "C" {
23 #endif
24 
25 #define FILLP_SHA256_DIGEST_SIZE  32 /* hash size in bytes 8 * sizeof(FILLP_UINT32) */
26 #define FILLP_SHA256_BLOCK_SIZE   64 /* wbuf size in bytes 16 * sizeof(FILLP_UINT32) */
27 
28 typedef struct {
29     FILLP_UINT32 count[2];
30     FILLP_UINT32 hash[8];
31     FILLP_UINT32 wbuf[16];
32 } FillpSha256Ctx;
33 
34 /*******************************************************************************
35     Function     : FillpSha256Set
36     Description : init sha256 context
37 
38     Input         :
39                     ctx[1] : Partition number
40     Output       :None
41  *******************************************************************************/
42 void FillpSha256Set(FillpSha256Ctx ctx[1]);
43 
44 /*******************************************************************************
45     Function     : FillpSha256Upd
46     Description : update sha256 context with data in an array of bytes
47 
48     Input         :
49                     ctx[1] : sha256 context
50                     data[] : data to calculate
51                     len : size in byte of data array
52     Output       :None
53  *******************************************************************************/
54 void FillpSha256Upd(FillpSha256Ctx ctx[1], const FILLP_UINT8 data[], size_t len);
55 
56 /*******************************************************************************
57     Function     : FillpSha256Set
58     Description : Final padding and digest calculation
59 
60     Input         :
61                     ctx[1] : sha256 context
62     Output       :
63                     hashVal[]: hash value
64  *******************************************************************************/
65 void FillpSha256Fin(FillpSha256Ctx ctx[1], FILLP_UINT8 hashVal[], FILLP_UINT32 hashValLen);
66 
67 
68 #ifdef __cplusplus
69 }
70 #endif
71 
72 
73 #endif /* FILLP_SHA256_H */
74 
75