Android System Key Verifier icon

Android System Key Verifier

com.google.android.contactkeys
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Merged APKs are re-signed with a debug key. Apps without splits keep their original signature.

⚠ Disclaimer

NOT RECOMMENDED FOR APPS FROM META, UBER, WHATSAPP, ANY GOOGLE APP REQUIRING AN ACCOUNT, OR ANY BANKING APP. RISK OF ACCOUNT BAN WITH CHANGED SIGNATURE.


For these apps, use Install to Device via USB or download as ZIP (uncheck merge) to preserve original signatures.

Use your own judgement to decide if an app is serious enough about security to warrant not merging. We do not take responsibility for any account bans or restrictions resulting from the use of re-signed APKs.

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About this app

The Android System Key Verifier is a system service designed to improve the security of end-to-end encrypted (E2EE) messaging apps. It provides a unified system for public key verification across different apps. It lets developers store end-to-end encryption keys. It lets users verify that their apps are using the correct public keys when communicating, confirming that users are communicating with the person they intended to message.

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