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40 lines
1.0 KiB
40 lines
1.0 KiB
/*
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* Copyright 2020 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#pragma once
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#include <openssl/rand.h>
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#include <array>
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namespace bluetooth {
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namespace os {
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template <size_t SIZE>
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std::array<uint8_t, SIZE> GenerateRandom() {
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std::array<uint8_t, SIZE> ret;
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ASSERT(RAND_bytes(ret.data(), ret.size()) == 1);
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return ret;
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}
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inline uint32_t GenerateRandom() {
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uint32_t ret{};
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ASSERT(RAND_bytes((uint8_t*)(&ret), sizeof(uint32_t)) == 1);
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return ret;
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}
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} // namespace os
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} // namespace bluetooth
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