https://f-droid.org/packages/org.sufficientlysecure.keychain/
Encrypt your Files and Communications. Compatible with the OpenPGP Standard.
open sourceopenkeychaineasypgpf
https://www.openkeychain.org/
Donations:PayPal / Flattr / Bitcoin# OpenKeychainOpenKeychain helps you communicate more privately and securely...
openkeychain