58 lines
1.7 KiB
Python
58 lines
1.7 KiB
Python
"""
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HWID Generator
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==============
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Generates a stable hardware fingerprint for this machine using:
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- Windows MachineGuid (most stable, survives most software changes)
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- CPU Processor ID (hardware-level, very stable)
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Returns a SHA-256 hex digest. Never changes unless hardware changes.
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"""
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import functools
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import hashlib
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import subprocess
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import winreg
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@functools.lru_cache(maxsize=None)
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def get_hwid() -> str:
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"""Return a stable SHA-256 HWID string for the current machine."""
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components = []
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# Windows MachineGuid — set once at OS install, very stable
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try:
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key = winreg.OpenKey(
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winreg.HKEY_LOCAL_MACHINE,
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r"SOFTWARE\Microsoft\Cryptography"
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)
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guid, _ = winreg.QueryValueEx(key, "MachineGuid")
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winreg.CloseKey(key)
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components.append(f"guid:{guid}")
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except Exception:
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pass
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# CPU Processor ID — hardware-level identifier
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try:
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result = subprocess.run(
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["wmic", "cpu", "get", "ProcessorId", "/value"],
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capture_output=True, text=True, timeout=5
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)
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for line in result.stdout.splitlines():
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line = line.strip()
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if line.startswith("ProcessorId=") and "=" in line:
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cpu_id = line.split("=", 1)[1].strip()
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if cpu_id:
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components.append(f"cpu:{cpu_id}")
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break
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except Exception:
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pass
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if not components:
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raise RuntimeError(
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"Could not generate HWID. "
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"This application requires Windows and access to system information."
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)
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raw = "|".join(components)
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return hashlib.sha256(raw.encode("utf-8")).hexdigest()
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