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Test the random number generator

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This commit is contained in:
Alex 2022-12-20 06:56:18 +02:00
parent a43e4f1593
commit 40e53586a3
Signed by untrusted user who does not match committer: enderice2
GPG Key ID: EACC3AD603BAB4DD
1 changed files with 67 additions and 0 deletions
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Tests/RandomNumberGenerator.cpp Normal file
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#ifdef DEBUG
#include <rand.hpp>
#include <debug.h>
#include <cpu.hpp>
__constructor void TestRandom()
{
int RDRANDFlag = 0;
if (strcmp(CPU::Vendor(), x86_CPUID_VENDOR_AMD) == 0)
{
#if defined(__amd64__)
CPU::x64::AMD::CPUID0x1 cpuid1amd;
#elif defined(__i386__)
CPU::x32::AMD::CPUID0x1 cpuid1amd;
#endif
#if defined(__amd64__) || defined(__i386__)
asmv("cpuid"
: "=a"(cpuid1amd.EAX.raw), "=b"(cpuid1amd.EBX.raw), "=c"(cpuid1amd.ECX.raw), "=d"(cpuid1amd.EDX.raw)
: "a"(0x1));
#endif
RDRANDFlag = cpuid1amd.ECX.RDRAND;
}
if (strcmp(CPU::Vendor(), x86_CPUID_VENDOR_INTEL) == 0)
{
#if defined(__amd64__)
CPU::x64::Intel::CPUID0x1 cpuid1intel;
#elif defined(__i386__)
CPU::x32::Intel::CPUID0x1 cpuid1intel;
#endif
#if defined(__amd64__) || defined(__i386__)
asmv("cpuid"
: "=a"(cpuid1intel.EAX.raw), "=b"(cpuid1intel.EBX.raw), "=c"(cpuid1intel.ECX.raw), "=d"(cpuid1intel.EDX.raw)
: "a"(0x1));
#endif
RDRANDFlag = cpuid1intel.ECX.RDRAND;
}
if (strcmp(CPU::Hypervisor(), x86_CPUID_VENDOR_TCG) == 0)
RDRANDFlag = 0;
#if defined(__amd64__) || defined(__i386__)
if (RDRANDFlag)
{
uint64_t RDSEEDValue = 0;
asmv("1: rdseed %0; jnc 1b"
: "=r"(RDSEEDValue));
debug("RDSEED: %ld", RDSEEDValue);
}
#endif
Random::ChangeSeed(0xdeadbeef);
uint16_t Seeds16[16];
uint32_t Seeds32[16];
uint64_t Seeds64[16];
for (uint64_t i = 0; i < 16; i++)
{
Seeds16[i] = Random::rand16();
Seeds32[i] = Random::rand32();
Seeds64[i] = Random::rand64();
}
debug("Random 16: %ld, %ld, %ld, %ld, %ld, %ld, %ld, %ld, %ld, %ld, %ld, %ld, %ld, %ld, %ld, %ld", Seeds16[0], Seeds16[1], Seeds16[2], Seeds16[3], Seeds16[4], Seeds16[5], Seeds16[6], Seeds16[7], Seeds16[8], Seeds16[9], Seeds16[10], Seeds16[11], Seeds16[12], Seeds16[13], Seeds16[14], Seeds16[15]);
debug("Random 32: %ld, %ld, %ld, %ld, %ld, %ld, %ld, %ld, %ld, %ld, %ld, %ld, %ld, %ld, %ld, %ld", Seeds32[0], Seeds32[1], Seeds32[2], Seeds32[3], Seeds32[4], Seeds32[5], Seeds32[6], Seeds32[7], Seeds32[8], Seeds32[9], Seeds32[10], Seeds32[11], Seeds32[12], Seeds32[13], Seeds32[14], Seeds32[15]);
debug("Random 64: %ld, %ld, %ld, %ld, %ld, %ld, %ld, %ld, %ld, %ld, %ld, %ld, %ld, %ld, %ld, %ld", Seeds64[0], Seeds64[1], Seeds64[2], Seeds64[3], Seeds64[4], Seeds64[5], Seeds64[6], Seeds64[7], Seeds64[8], Seeds64[9], Seeds64[10], Seeds64[11], Seeds64[12], Seeds64[13], Seeds64[14], Seeds64[15]);
}
#endif