OLD | NEW |
| (Empty) |
1 // Copyright 2014 The Chromium Authors. All rights reserved. | |
2 // Use of this source code is governed by a BSD-style license that can be | |
3 // found in the LICENSE file. | |
4 | |
5 #include "components/encryptor/encryptor.h" | |
6 | |
7 #include <windows.h> | |
8 #include <wincrypt.h> | |
9 #include "base/strings/utf_string_conversions.h" | |
10 | |
11 #pragma comment(lib, "crypt32.lib") | |
12 | |
13 bool Encryptor::EncryptString16(const base::string16& plaintext, | |
14 std::string* ciphertext) { | |
15 return EncryptString(base::UTF16ToUTF8(plaintext), ciphertext); | |
16 } | |
17 | |
18 bool Encryptor::DecryptString16(const std::string& ciphertext, | |
19 base::string16* plaintext) { | |
20 std::string utf8; | |
21 if (!DecryptString(ciphertext, &utf8)) | |
22 return false; | |
23 | |
24 *plaintext = base::UTF8ToUTF16(utf8); | |
25 return true; | |
26 } | |
27 | |
28 bool Encryptor::EncryptString(const std::string& plaintext, | |
29 std::string* ciphertext) { | |
30 DATA_BLOB input; | |
31 input.pbData = const_cast<BYTE*>( | |
32 reinterpret_cast<const BYTE*>(plaintext.data())); | |
33 input.cbData = static_cast<DWORD>(plaintext.length()); | |
34 | |
35 DATA_BLOB output; | |
36 BOOL result = CryptProtectData(&input, L"", NULL, NULL, NULL, | |
37 0, &output); | |
38 if (!result) | |
39 return false; | |
40 | |
41 // this does a copy | |
42 ciphertext->assign(reinterpret_cast<std::string::value_type*>(output.pbData), | |
43 output.cbData); | |
44 | |
45 LocalFree(output.pbData); | |
46 return true; | |
47 } | |
48 | |
49 bool Encryptor::DecryptString(const std::string& ciphertext, | |
50 std::string* plaintext) { | |
51 DATA_BLOB input; | |
52 input.pbData = const_cast<BYTE*>( | |
53 reinterpret_cast<const BYTE*>(ciphertext.data())); | |
54 input.cbData = static_cast<DWORD>(ciphertext.length()); | |
55 | |
56 DATA_BLOB output; | |
57 BOOL result = CryptUnprotectData(&input, NULL, NULL, NULL, NULL, | |
58 0, &output); | |
59 if (!result) | |
60 return false; | |
61 | |
62 plaintext->assign(reinterpret_cast<char*>(output.pbData), output.cbData); | |
63 LocalFree(output.pbData); | |
64 return true; | |
65 } | |
OLD | NEW |