https://github.com/dschuermann/openpgp-keychain

OpenPGP Keychain is an OpenPGP implementation. The development began as a fork of Android Privacy Guard (APG)

License: Apache License v2

Developer

• Dominik Schürmann (Developer OpenPGP Keychain)
• Oliver Runge
• Markus Doits
• Senecaso (QRCode, sign key, upload key)
• Thialfihar (Main developer APG v1.x)

Libraries

• ActionBarSherlock (Apache License v2)
• ZXing QRCode Integration (Apache License v2)
• SpongyCastle (MIT X11 License)
• HtmlSpanner Fork (Apache License v2)
• Icons from RRZE Icon Set (Creative Commons Attribution Share-Alike licence 3.0)
• Icons from Tango Icon Set (Public Domain)