| // Copyright (c) 2012 The Chromium Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| #ifndef QUICHE_QUIC_CORE_CRYPTO_QUIC_RANDOM_H_ |
| #define QUICHE_QUIC_CORE_CRYPTO_QUIC_RANDOM_H_ |
| |
| #include <cstddef> |
| #include <cstdint> |
| |
| #include "quic/platform/api/quic_export.h" |
| |
| namespace quic { |
| |
| // The interface for a random number generator. |
| class QUIC_EXPORT_PRIVATE QuicRandom { |
| public: |
| virtual ~QuicRandom() {} |
| |
| // Returns the default random number generator, which is cryptographically |
| // secure and thread-safe. |
| static QuicRandom* GetInstance(); |
| |
| // Generates |len| random bytes in the |data| buffer. |
| virtual void RandBytes(void* data, size_t len) = 0; |
| |
| // Returns a random number in the range [0, kuint64max]. |
| virtual uint64_t RandUint64() = 0; |
| }; |
| |
| } // namespace quic |
| |
| #endif // QUICHE_QUIC_CORE_CRYPTO_QUIC_RANDOM_H_ |