1 // Copyright 2015 Google Inc. All rights reserved. 2 // 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 // A RAPPOR random implementation using libc's rand(). 16 // 17 // IMPORTANT: This is for demo /simulation purposes only. Use a better random 18 // function in production applications. 19 20 #ifndef LIBC_RAND_IMPL_H_ 21 #define LIBC_RAND_IMPL_H_ 22 23 #include "rappor_deps.h" 24 25 namespace rappor { 26 27 class LibcRand : public IrrRandInterface { 28 public: ~LibcRand()29 virtual ~LibcRand() {} 30 31 virtual bool GetMask(float prob, int num_bits, Bits* mask_out) const; 32 }; 33 34 } // namespace rappor 35 36 #endif // LIBC_RAND_IMPL_H_ 37