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Conversations was added to Google Play later in spring 2014, and to the alternative Android software repository F-Droid with version 0.1.3 on April 6, 2014. [ 11 ] Since version 0.2, released on May 12, image messages (file transfers, in plain text or OpenPGP-encrypted) are supported, from version 0.4 (June 30) also OTR-encrypted.
Tox is a peer-to-peer instant-messaging and video-calling protocol that offers end-to-end encryption. The stated goal of the project is to provide secure yet easily accessible communication for everyone. [2] A reference implementation of the protocol is published as free and open-source software under the terms of the GNU GPL-3.0-or-later.
The term "end-to-end encryption" originally only meant that the communication is never decrypted during its transport from the sender to the receiver. [9] For example, around 2003, E2EE has been proposed as an additional layer of encryption for GSM [10] or TETRA, [11] in addition to the existing radio encryption protecting the communication between the mobile device and the network infrastructure.
OpenKeychain is a free and open-source mobile app for the Android operating system that provides strong, user-based encryption which is compatible with the OpenPGP standard. This allows users to encrypt, decrypt, sign, and verify signatures for text, emails, and files. The app allows the user to store the public keys of other users with whom ...
The Android operating system, as of early 2014, includes a customized version of Bouncy Castle. [9] Due to class name conflicts, this prevents Android applications from including and using the official release of Bouncy Castle as-is. A third-party project called Spongy Castle distributes a renamed version of the library to work around this ...
Element (formerly Riot and Vector [13]) is a free and open-source software instant messaging client implementing the Matrix protocol. [14]Element supports end-to-end encryption, [15] private and public groups, sharing of files between users, voice and video calls, and other collaborative features with help of bots and widgets.
Logo of OMEMO. OMEMO is an extension to the Extensible Messaging and Presence Protocol for multi-client end-to-end encryption developed by Andreas Straub.According to Straub, OMEMO uses the Double Ratchet Algorithm "to provide multi-end to multi-end encryption, allowing messages to be synchronized securely across multiple clients, even if some of them are offline". [1]
Off-the-record Messaging (OTR) is a cryptographic protocol that provides encryption for instant messaging conversations. OTR uses a combination of AES symmetric-key algorithm with 128 bits key length, the Diffie–Hellman key exchange with 1536 bits group size, and the SHA-1 hash function.