1 // Copyright 2023 Google LLC 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 //////////////////////////////////////////////////////////////////////////////// 16 17 //! BoringSSL-based implementation of random number generation. 18 use authgraph_core::traits::Rng; 19 20 /// [`Rng`] implementation based on BoringSSL. 21 #[derive(Clone, Default)] 22 pub struct BoringRng; 23 24 impl Rng for BoringRng { fill_bytes(&self, nonce: &mut [u8])25 fn fill_bytes(&self, nonce: &mut [u8]) { 26 openssl::rand::rand_bytes(nonce).unwrap(); // safe: BoringSSL's RAND_bytes() never fails 27 } box_clone(&self) -> Box<dyn Rng>28 fn box_clone(&self) -> Box<dyn Rng> { 29 Box::new(self.clone()) 30 } 31 } 32