/* * Copyright 2004 The WebRTC Project Authors. All rights reserved. * * Use of this source code is governed by a BSD-style license * that can be found in the LICENSE file in the root of the source * tree. An additional intellectual property rights grant can be found * in the file PATENTS. All contributing project authors may * be found in the AUTHORS file in the root of the source tree.
*/
// Sets the default random generator as the source of randomness. The default // source uses the OpenSSL RNG and provides cryptographically secure randomness. void SetDefaultRandomGenerator();
// Set a custom random generator. Results produced by CreateRandomXyz // are cryptographically random iff the output of the supplied generator is // cryptographically random. void SetRandomGenerator(std::unique_ptr<RandomGenerator> generator);
// For testing, we can return predictable data. void SetRandomTestMode(bool test);
// Initializes the RNG, and seeds it with the specified entropy. bool InitRandom(int seed); bool InitRandom(constchar* seed, size_t len);
// Generates a (cryptographically) random string of the given length. // We generate base64 values so that they will be printable.
RTC_EXPORT std::string CreateRandomString(size_t length);
// Generates a (cryptographically) random string of the given length. // We generate base64 values so that they will be printable. // Return false if the random number generator failed.
RTC_EXPORT bool CreateRandomString(size_t length, std::string* str);
// Generates a (cryptographically) random string of the given length, // with characters from the given table. Return false if the random // number generator failed. // For ease of implementation, the function requires that the table // size evenly divide 256; otherwise, it returns false.
RTC_EXPORT bool CreateRandomString(size_t length,
absl::string_view table,
std::string* str);
// Generates (cryptographically) random data of the given length. // Return false if the random number generator failed. bool CreateRandomData(size_t length, std::string* data);
// Generates a (cryptographically) random UUID version 4 string.
std::string CreateRandomUuid();
// Generates a random id.
uint32_t CreateRandomId();
// Generates a 64 bit random id.
RTC_EXPORT uint64_t CreateRandomId64();
// Generates a random id > 0.
uint32_t CreateRandomNonZeroId();
// Generates a random double between 0.0 (inclusive) and 1.0 (exclusive). double CreateRandomDouble();
} // namespace rtc
#endif// RTC_BASE_CRYPTO_RANDOM_H_
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