Files
SilverMetal/shared/signing/README.md
SysAdmin 7d5f9cc246 chore(scaffold): initial SilverMetal program scaffold
Cross-platform privacy-hardening program. Two-layer product:
- SilverLABS Application Stack (cross-platform spine)
- Platform Hardening Profiles (per-OS, tier-honest)

Platforms: Linux (Debian/Kicksecure), Android (Pixel/Samsung/Moto/generic),
Windows (LTSC IoT), macOS (profile), iOS (MDM profile). Each flavour has
both a preflashed hardware SKU path and a self-apply "harden your existing
device" path.

Includes umbrella docs (README + threat-model, design-principles,
platform-matrix, roadmap, trust-model), per-platform and per-stack-
component README stubs, .gitignore, LICENSE.

Linux v1 ships first; Stack v1 = Browser + VPN + Sync.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
2026-04-25 03:11:48 +01:00

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Signing

Real signing keys never live in this repository. This directory holds:

  • KEYS.md (to be created) — public key fingerprints, key purposes, key ceremony summaries
  • Public keys.asc / .pem exports of public halves
  • Verification documentation — how a third party reproduces our build and verifies our signatures

Key inventory

See ../../docs/trust-model.md for the complete trust model.

Key Purpose
SilverMetal Release Signs ISO/ROM/installer artefacts
SilverMetal Update Channel Signs OTA / apt updates
SilverMetal MOK (Linux Secure Boot) Our Machine Owner Key
SilverMetal AVB (Android verified boot) Android verified-boot key
SilverMetal Code Signing — per-platform OS-specific code-signing certs

First key ceremony

To occur at milestone 1.9 (update server + signing ceremony) per the roadmap. Procedure documented in advance and reviewed by SilverLABS leadership before execution.