1 /*
2 **
3 ** Copyright 2017, The Android Open Source Project
4 **
5 ** Licensed under the Apache License, Version 2.0 (the "License");
6 ** you may not use this file except in compliance with the License.
7 ** You may obtain a copy of the License at
8 **
9 **     http://www.apache.org/licenses/LICENSE-2.0
10 **
11 ** Unless required by applicable law or agreed to in writing, software
12 ** distributed under the License is distributed on an "AS IS" BASIS,
13 ** WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14 ** See the License for the specific language governing permissions and
15 ** limitations under the License.
16 */
17 
18 #ifndef KM_OPENSSL_SOFTWARE_RANDOM_SOURCE_H_
19 #define KM_OPENSSL_SOFTWARE_RANDOM_SOURCE_H_
20 
21 #include <keymaster/random_source.h>
22 
23 namespace keymaster {
24 
25 class SoftwareRandomSource : public RandomSource {
26 public:
27     /**
28      * Generates \p length random bytes, placing them in \p buf.
29      */
30     keymaster_error_t GenerateRandom(uint8_t* buffer, size_t length) const override;
31 
32 };
33 
34 }
35 
36 #endif  // KM_OPENSSL_SOFTWARE_RANDOM_SOURCE_H_
37