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1 /* | 1 /* |
2 * Copyright (c) 1996, David Mazieres <dm@uun.org> | 2 * Copyright (c) 1996, David Mazieres <dm@uun.org> |
3 * Copyright (c) 2008, Damien Miller <djm@openbsd.org> | 3 * Copyright (c) 2008, Damien Miller <djm@openbsd.org> |
4 * | 4 * |
5 * Permission to use, copy, modify, and distribute this software for any | 5 * Permission to use, copy, modify, and distribute this software for any |
6 * purpose with or without fee is hereby granted, provided that the above | 6 * purpose with or without fee is hereby granted, provided that the above |
7 * copyright notice and this permission notice appear in all copies. | 7 * copyright notice and this permission notice appear in all copies. |
8 * | 8 * |
9 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES | 9 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES |
10 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF | 10 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF |
11 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR | 11 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR |
12 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES | 12 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES |
13 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN | 13 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN |
14 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF | 14 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF |
15 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. | 15 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. |
16 */ | 16 */ |
17 | 17 |
18 #include "wtf/CryptographicallyRandomNumber.h" | 18 #include "wtf/CryptographicallyRandomNumber.h" |
19 | 19 |
| 20 #include <string.h> |
20 #include "base/rand_util.h" | 21 #include "base/rand_util.h" |
21 #include <string.h> | |
22 | 22 |
23 namespace WTF { | 23 namespace WTF { |
24 | 24 |
25 static bool s_shouldUseAlwaysZeroRandomSourceForTesting = false; | 25 static bool s_shouldUseAlwaysZeroRandomSourceForTesting = false; |
26 | 26 |
27 void setAlwaysZeroRandomSourceForTesting() { | 27 void setAlwaysZeroRandomSourceForTesting() { |
28 s_shouldUseAlwaysZeroRandomSourceForTesting = true; | 28 s_shouldUseAlwaysZeroRandomSourceForTesting = true; |
29 } | 29 } |
30 | 30 |
31 uint32_t cryptographicallyRandomNumber() { | 31 uint32_t cryptographicallyRandomNumber() { |
32 uint32_t result; | 32 uint32_t result; |
33 cryptographicallyRandomValues(&result, sizeof(result)); | 33 cryptographicallyRandomValues(&result, sizeof(result)); |
34 return result; | 34 return result; |
35 } | 35 } |
36 | 36 |
37 void cryptographicallyRandomValues(void* buffer, size_t length) { | 37 void cryptographicallyRandomValues(void* buffer, size_t length) { |
38 if (s_shouldUseAlwaysZeroRandomSourceForTesting) { | 38 if (s_shouldUseAlwaysZeroRandomSourceForTesting) { |
39 memset(buffer, '\0', length); | 39 memset(buffer, '\0', length); |
40 return; | 40 return; |
41 } | 41 } |
42 | 42 |
43 // This should really be crypto::RandBytes(), but WTF can't depend on crypto. | 43 // This should really be crypto::RandBytes(), but WTF can't depend on crypto. |
44 // The implementation of crypto::RandBytes() is just calling | 44 // The implementation of crypto::RandBytes() is just calling |
45 // base::RandBytes(), so both are actually same. | 45 // base::RandBytes(), so both are actually same. |
46 base::RandBytes(buffer, length); | 46 base::RandBytes(buffer, length); |
47 } | 47 } |
48 | 48 |
49 } // namespace WTF | 49 } // namespace WTF |
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