Certificate Installer
Keep
The system tool that installs security certificates for Wi-Fi, VPN and work networks.
Android (AOSP) package
Key Chain
Keep: com.android.keychain Keep Vendor documentation
Android's system credential store that lets apps use certificates and private keys you have approved. Keep it: Key Chain is needed for the phone, its updates or its security.
What it does
Key Chain is the Android service behind the system-wide credential store. Apps ask it for a user certificate and private key, such as for a work VPN, Wi-Fi or a website that requires a client certificate, and it shows the prompt where you choose which credential to allow. It also manages the trusted CA certificates you add.
If you disable it
Apps, VPNs and Wi-Fi networks that use installed certificates fail to connect, and you cannot grant certificate access to apps. Community lists rate removal as unsafe.
How to disable it
On most phones Settings greys out Disable for this package, so ADB is the way to turn it off. The commands below work without root and can be undone.
Disable it (reversible)
adb shell pm disable-user --user 0 com.android.keychainTurn it back on
adb shell pm enable com.android.keychainThe stronger option removes it for your user only; the original copy stays on the phone and a factory reset brings it back. Prefer disabling: it is easier to undo.
Uninstall for the main user
adb shell pm uninstall -k --user 0 com.android.keychainRestore after an uninstall
adb shell cmd package install-existing com.android.keychainNew to ADB? Set it up in about ten minutes.
Data and battery
Holds the certificates and keys you installed, protected by the phone's hardware keystore.
Where it appears
- Made by Android Open Source Project.
Questions people ask
What is com.android.keychain?
com.android.keychain is Key Chain. Android's system credential store that lets apps use certificates and private keys you have approved.
Can I disable Key Chain?
Keep it: Key Chain is needed for the phone, its updates or its security. On most phones it takes ADB.
What happens if I disable Key Chain?
Apps, VPNs and Wi-Fi networks that use installed certificates fail to connect, and you cannot grant certificate access to apps. Community lists rate removal as unsafe.
Sources
- Android source: KeyChain manifestAndroid source
- Android Developers: KeyChainDeveloper documentation
- Universal Android Debloater list entryCommunity list
Each source answered when this page was checked on 25 October 2026.
Confidence: Vendor documentation. Backed by the maker's own documentation, the Android source or the Play listing. How we decide a verdict.
Cite this page: https://mysystemapp.com/packages/com.android.keychain/ (verified 25 October 2026). Something wrong or out of date? Request a correction.