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csrng: Use std::mt19937 engine for random number generation

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This commit is contained in:
Zach Hilman 2018-11-11 22:33:31 -05:00
parent 2c6efda235
commit 4b4f883aef
2 changed files with 11 additions and 2 deletions
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9
src/core/hle/service/spl/module.cpp
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@ -3,18 +3,23 @@
// Refer to the license.txt file included.
#include <algorithm>
#include <chrono>
#include <cstdlib>
#include <ctime>
#include <functional>
#include <vector>
#include "common/logging/log.h"
#include "core/hle/ipc_helpers.h"
#include "core/hle/service/spl/csrng.h"
#include "core/hle/service/spl/module.h"
#include "core/hle/service/spl/spl.h"
#include "core/settings.h"
namespace Service::SPL {
Module::Interface::Interface(std::shared_ptr<Module> module, const char* name)
: ServiceFramework(name), module(std::move(module)) {}
: ServiceFramework(name), module(std::move(module)),
rng(Settings::values.rng_seed.value_or(std::time(nullptr))) {}
Module::Interface::~Interface() = default;
@ -24,7 +29,7 @@ void Module::Interface::GetRandomBytes(Kernel::HLERequestContext& ctx) {
std::size_t size = ctx.GetWriteBufferSize();
std::vector<u8> data(size);
std::generate(data.begin(), data.end(), std::rand);
std::generate(data.begin(), data.end(), rng);
ctx.WriteBuffer(data);

4
src/core/hle/service/spl/module.h
View file

@ -4,6 +4,7 @@
#pragma once
#include <random>
#include "core/hle/service/service.h"
namespace Service::SPL {
@ -19,6 +20,9 @@ public:
protected:
std::shared_ptr<Module> module;
private:
std::mt19937 rng;
};
};