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
