csrng: Use std::mt19937 engine for random number generation
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@ -3,18 +3,23 @@
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// Refer to the license.txt file included.
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#include <algorithm>
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#include <chrono>
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#include <cstdlib>
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#include <ctime>
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#include <functional>
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#include <vector>
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#include "common/logging/log.h"
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#include "core/hle/ipc_helpers.h"
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#include "core/hle/service/spl/csrng.h"
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#include "core/hle/service/spl/module.h"
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#include "core/hle/service/spl/spl.h"
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#include "core/settings.h"
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namespace Service::SPL {
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Module::Interface::Interface(std::shared_ptr<Module> module, const char* name)
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: ServiceFramework(name), module(std::move(module)) {}
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: ServiceFramework(name), module(std::move(module)),
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rng(Settings::values.rng_seed.value_or(std::time(nullptr))) {}
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Module::Interface::~Interface() = default;
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@ -24,7 +29,7 @@ void Module::Interface::GetRandomBytes(Kernel::HLERequestContext& ctx) {
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std::size_t size = ctx.GetWriteBufferSize();
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std::vector<u8> data(size);
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std::generate(data.begin(), data.end(), std::rand);
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std::generate(data.begin(), data.end(), rng);
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ctx.WriteBuffer(data);
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@ -4,6 +4,7 @@
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#pragma once
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#include <random>
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#include "core/hle/service/service.h"
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namespace Service::SPL {
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@ -19,6 +20,9 @@ public:
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protected:
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std::shared_ptr<Module> module;
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private:
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std::mt19937 rng;
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};
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};
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