1 /*
2 * Copyright (c) 2021 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 #include "types_export.h"
17
18 #include <cstring>
19
20 namespace DistributedDB {
21 const size_t CipherPassword::MAX_PASSWORD_SIZE;
22
CipherPassword()23 CipherPassword::CipherPassword()
24 {}
25
~CipherPassword()26 CipherPassword::~CipherPassword()
27 {
28 (void)Clear();
29 }
30
operator ==(const CipherPassword & input) const31 bool CipherPassword::operator==(const CipherPassword &input) const
32 {
33 if (size_ != input.GetSize()) {
34 return false;
35 }
36 return memcmp(data_, input.GetData(), size_) == 0;
37 }
38
operator !=(const CipherPassword & input) const39 bool CipherPassword::operator!=(const CipherPassword &input) const
40 {
41 return !(*this == input);
42 }
43
GetSize() const44 size_t CipherPassword::GetSize() const
45 {
46 return size_;
47 }
48
GetData() const49 const uint8_t* CipherPassword::GetData() const
50 {
51 return data_;
52 }
53
SetValue(const uint8_t * inputData,size_t inputSize)54 int CipherPassword::SetValue(const uint8_t *inputData, size_t inputSize)
55 {
56 if (inputSize > MAX_PASSWORD_SIZE) {
57 return ErrorCode::OVERSIZE;
58 }
59 if (inputSize != 0 && inputData == nullptr) {
60 return ErrorCode::INVALID_INPUT;
61 }
62
63 if (inputSize != 0) {
64 std::copy(inputData, inputData + inputSize, data_);
65 }
66
67 size_t filledSize = std::min(size_, MAX_PASSWORD_SIZE);
68 if (inputSize < filledSize) {
69 std::fill(data_ + inputSize, data_ + filledSize, UCHAR_MAX);
70 }
71
72 size_ = inputSize;
73 return ErrorCode::OK;
74 }
75
Clear()76 int CipherPassword::Clear()
77 {
78 return SetValue(nullptr, 0);
79 }
80 } // namespace DistributedDB