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lawnchair/VERIFICATION.md
2026-01-10 20:48:30 +07:00

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# Lawnchair verification
Lawnchair apk are cryptographically signed and can be verified using two verification systems
1. GitHub or SLSA attestations
2. SHA256 of android app certificate
## SLSA Attestation
> [!NOTE]
> It is possible to verify without GitHub CLI by cross-referencing check
> [GitHub Attestation][github-attestation] with [Sigstore Rekor][sigstore-rekor]
Lawnchair repository is SLSA-Level 2 compliance
1. Install GitHub CLI
2. Download the APK and attestation from [GitHub Attestation][github-attestation]
3. Run `gh attestation verify {APK} -R LawnchairLauncher/lawnchair`, replace {APK} with the
actual APK file
4. Done
## Android App Certificate
Lawnchair have two app certificates, usually:
* Google Play:
`47:AC:92:63:1C:60:35:13:CC:8D:26:DD:9C:FF:E0:71:9A:8B:36:55:44:DC:CE:C2:09:58:24:EC:25:61:20:A7`
* Elsewhere:
`74:7C:36:45:B3:57:25:8B:2E:23:E8:51:E5:3C:96:74:7F:E0:AD:D0:07:E5:BA:2C:D9:7E:8C:85:57:2E:4D:C5`
Using a verification app like [AppVerifier][3p-appverifier] can ease up the verifying process.
[github-attestation]: https://github.com/LawnchairLauncher/lawnchair/attestations
[sigstore-rekor]: https://search.sigstore.dev/
[3p-appverifier]: https://github.com/soupslurpr/AppVerifier