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OpenKeychain is an OpenPGP implementation for Android. It serves as a key management tool for encryption, decryption, signature generation, and signature verification.

== K-9 Mail Support is Coming! ==
K-9 Mail RC1 supports OpenKeychain:

• OpenKeychain is Open Source and Free Software (GPLv3+) (-> verifiable cryptography)
• All basic OpenPGP operations: encrypt/decrypt/sign/verify
• NFC/QR code key exchange
• Key management (import/export/sign/upload)
• Import/export of GPG key rings and exported keys from/to the SD card
• Basic keyserver support
• Easy API

Help translating OpenKeychain! Everybody can participate at


• Full network access: Internet access is ONLY used for key server queries
• Control Near Field Communication: To exchange keys via NFC
• Modify or delete the contents of your USB storage: To export keys to the sd card
• Read the contents of your USB storage: To import keys from the sd card

openkeychain, open keychain, openpgp keychain, openpgp, gpg, pgp, keychain

Tags: openpgp keychain beta, openpgp open source, openkeychain k-9, openpgp keychain s3 crash, rich amies gpg.

Recently changed in this version

* Fix keys broken in 2.9.1
* Yubikey decryption now working via API

* Split encrypt screen into two
* Fix key flags handling (now supporting Mailvelope 0.7 keys)
* Improved passphrase handling
* Key sharing via SafeSlinger
* Yubikey: preference to allow other PINs, currently only signing via the OpenPGP API works, not inside of OpenKeychain
* Fix usage of stripped keys
* SHA256 as default for compatibility
* Intent API has changed

Comments and ratings for OpenKeychain
  • (72 stars)

    by Justin Batchelor on 16/09/2014

    Keeps giving me integrity check failed data has been modified.. can anyone help.

  • (72 stars)

    by Michael Ilg on 12/09/2014

    Didn't fix the broken key problem, either, it still says no suitable key found when I try to decrypt something. Any ideas?

  • (72 stars)

    by CJ Laing on 10/09/2014

    I had to generate a brand new key after it updated to 2.9.2, for some reason, my main key was no longer mine and I don't have any backups of the key for some reason (thought I had but must've deleted accidentally..). Other than this, it's a great frontend for using OpenPGP/GPG Keys on Android.

  • (72 stars)

    by Kb Sriram on 30/08/2014

    And works nicely with k-9 alpha.

  • (72 stars)

    by Jan Winter on 27/08/2014

    Integrates fine with K-9 mail

  • (72 stars)

    by Don Takahashi on 02/08/2014

    But it already looks great. It generates keys, it lets you share them. What more could you want?

  • (72 stars)

    by Alif Mubarak Ahmad on 02/07/2014

    Having problem with the guardian project version. Installing this to provide alternative for gpg encryption. Now what? Just exchange gpg keys and start a super secret message.