mirror of https://github.com/qpdf/qpdf.git
67 lines
2.2 KiB
C++
67 lines
2.2 KiB
C++
#include <qpdf/InsecureRandomDataProvider.hh>
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#include <qpdf/QUtil.hh>
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#include <qpdf/SecureRandomDataProvider.hh>
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#include <iostream>
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class BogusRandomDataProvider: public RandomDataProvider
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{
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public:
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~BogusRandomDataProvider() override = default;
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BogusRandomDataProvider() = default;
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void
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provideRandomData(unsigned char* data, size_t len) override
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{
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for (size_t i = 0; i < len; ++i) {
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data[i] = static_cast<unsigned char>(i & 0xff);
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}
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}
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};
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int
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main()
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{
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RandomDataProvider* orig_rdp = QUtil::getRandomDataProvider();
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long r1 = QUtil::random();
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long r2 = QUtil::random();
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if (r1 == r2) {
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std::cout << "fail: two randoms were the same\n";
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}
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InsecureRandomDataProvider irdp;
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irdp.provideRandomData(reinterpret_cast<unsigned char*>(&r1), 4);
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irdp.provideRandomData(reinterpret_cast<unsigned char*>(&r2), 4);
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if (r1 == r2) {
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std::cout << "fail: two insecure randoms were the same\n";
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}
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#ifndef SKIP_OS_SECURE_RANDOM
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SecureRandomDataProvider srdp;
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srdp.provideRandomData(reinterpret_cast<unsigned char*>(&r1), 4);
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srdp.provideRandomData(reinterpret_cast<unsigned char*>(&r2), 4);
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if (r1 == r2) {
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std::cout << "fail: two secure randoms were the same\n";
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}
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#endif
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BogusRandomDataProvider brdp;
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QUtil::setRandomDataProvider(&brdp);
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if (QUtil::getRandomDataProvider() != &brdp) {
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std::cout << "fail: getRandomDataProvider didn't"
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" return our provider\n";
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}
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r1 = QUtil::random();
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r2 = QUtil::random();
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if (r1 != r2) {
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std::cout << "fail: two bogus randoms were different\n";
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}
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unsigned char buf[4];
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QUtil::initializeWithRandomBytes(buf, 4);
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if (!((buf[0] == 0) && (buf[1] == 1) && (buf[2] == 2) && (buf[3] == 3))) {
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std::cout << "fail: bogus random didn't provide correct bytes\n";
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}
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QUtil::setRandomDataProvider(nullptr);
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if (QUtil::getRandomDataProvider() != orig_rdp) {
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std::cout << "fail: passing null to setRandomDataProvider "
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"didn't reset the random data provider\n";
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}
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std::cout << "random: end of tests\n";
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return 0;
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}
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