// Copyright 2012 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#ifndef CRYPTO_RANDOM_H_
#define CRYPTO_RANDOM_H_

#include <stddef.h>

#include "base/containers/span.h"
#include "crypto/crypto_export.h"

namespace crypto {

// Fills the given buffer with |length| random bytes of cryptographically
// secure random numbers.
// |length| must be positive.
CRYPTO_EXPORT void RandBytes(void *bytes, size_t length);

// Fills |bytes| with cryptographically-secure random bits.
CRYPTO_EXPORT void RandBytes(base::span<uint8_t> bytes);
}

#endif  // CRYPTO_RANDOM_H_