keyacid app for iPhone and iPad
keyacid, secure and easy crypto for everyone!
keyacid is an open-source software aiming at providing security to information communication. It employs state-of-the-art AEAD cipher, XSalsa20-Poly1305 with Curve25519, and digital signature algorithm, EdDSA.
Visit GitHub for the source of this project: https://github.com/keyacid/keyacid-iOS
and the source of the encryption library, libsodium: https://github.com/zhuhaow/Sodium-framework and https://github.com/jedisct1/libsodium