bool isDrngSupported()

in fbpcf/system/CpuUtil.cpp [31:48]

• 15 lines of code
• 5 McCabe index (conditional complexity)

bool isDrngSupported() {
  bool rdrandSupported = false;
  bool rdseedSupported = false;

  if (isIntelCpu()) {
    auto info = getCpuId(1);
    if ((info.ecx & 0x40000000) == 0x40000000) {
      rdrandSupported = true;
    }

    info = getCpuId(7);
    if ((info.ebx & 0x40000) == 0x40000) {
      rdseedSupported = true;
    }
  }

  return rdrandSupported && rdseedSupported;
}