Cellcrypt Android Mobile Client is a secure multimedia application for Android smartphones. It implements end-to-end encryption and authentication of voice, video, text messages and file attachments between two or more users of Cellcrypt Android Mobile Client and other compatible applications. The Cellcrypt system comprises a handset software application(Cellcrypt Android Mobile Client) and the back-end support infrastructure (Cellcrypt Server).
Cellcrypt Android Mobile Client uses standard wireless packet-based connectivity that can be provided by a cellular network or a Wi-Fi data connection.
Mutually authenticated connection set-up ensures that only integrated mobile phones can participate in secure sessions with the Cellcrypt Server, and that the users can be assured to always connect to a legitimate Cellcrypt server. End-to-end encryption is achieved through the creation and use of session-unique encryption/decryption keys to encrypt and decrypt voice traffic, messages, and attachments. Long-term static keys and other sensitive user data are stored internally in an encrypted database (SQLCipher) with the SQLCipher master key being protected by the operating system.