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78 lines
2.1 KiB
C++
78 lines
2.1 KiB
C++
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/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* vim: set ts=2 et sw=2 tw=80: */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this file,
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* You can obtain one at http://mozilla.org/MPL/2.0/. */
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#include <memory>
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#include "blapi.h"
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#include "pk11pub.h"
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#include "gtest/gtest.h"
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namespace nss_test {
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class PK11PrngTest : public ::testing::Test {};
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#ifdef UNSAFE_FUZZER_MODE
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// Test that two consecutive calls to the RNG return two distinct values.
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TEST_F(PK11PrngTest, Fuzz_DetPRNG) {
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std::vector<uint8_t> rnd1(2048, 0);
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std::vector<uint8_t> rnd2(2048, 0);
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SECStatus rv = PK11_GenerateRandom(rnd1.data(), rnd1.size());
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EXPECT_EQ(rv, SECSuccess);
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rv = PK11_GenerateRandom(rnd2.data(), rnd2.size());
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EXPECT_EQ(rv, SECSuccess);
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EXPECT_NE(rnd1, rnd2);
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}
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// Test that two consecutive calls to the RNG return two equal values
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// when the RNG's internal state is reset before each call.
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TEST_F(PK11PrngTest, Fuzz_DetPRNG_Reset) {
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std::vector<uint8_t> rnd1(2048, 0);
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std::vector<uint8_t> rnd2(2048, 0);
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RNG_ResetForFuzzing();
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SECStatus rv = PK11_GenerateRandom(rnd1.data(), rnd1.size());
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EXPECT_EQ(rv, SECSuccess);
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RNG_ResetForFuzzing();
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rv = PK11_GenerateRandom(rnd2.data(), rnd2.size());
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EXPECT_EQ(rv, SECSuccess);
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EXPECT_EQ(rnd1, rnd2);
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}
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// Test that the RNG's internal state progresses in a consistent manner.
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TEST_F(PK11PrngTest, Fuzz_DetPRNG_StatefulReset) {
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std::vector<uint8_t> rnd1(2048, 0);
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std::vector<uint8_t> rnd2(2048, 0);
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RNG_ResetForFuzzing();
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SECStatus rv = PK11_GenerateRandom(rnd1.data(), rnd1.size() - 1024);
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EXPECT_EQ(rv, SECSuccess);
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rv = PK11_GenerateRandom(rnd1.data() + 1024, rnd1.size() - 1024);
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EXPECT_EQ(rv, SECSuccess);
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RNG_ResetForFuzzing();
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rv = PK11_GenerateRandom(rnd2.data(), rnd2.size() - 1024);
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EXPECT_EQ(rv, SECSuccess);
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rv = PK11_GenerateRandom(rnd2.data() + 1024, rnd2.size() - 1024);
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EXPECT_EQ(rv, SECSuccess);
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EXPECT_EQ(rnd1, rnd2);
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}
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#endif
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} // namespace nss_test
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