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In addition to providing encryption and authentication — features also provided by typical public-key cryptography suites, such as PGP, GnuPG, and X.509 — OTR also offers some less common features: Forward secrecy Messages are only encrypted with temporary per-message AES keys, negotiated using the Diffie–Hellman key exchange protocol.
Silence is a free, open-source messaging encryption software, based on a fork from TextSecure software. It allows the secure exchange of SMS and MMS-type messages with other Silence or TextSecure users. The program allows message encryption and identity verification between correspondents by comparing the fingerprint of the encryption keys. [1] [2]
Send instant text and voice messages in 1:1 or group chat conversations over mobile data and Wi-Fi, via Android, Wear OS or the web. End-to-end encryption for RCS chats. [22] Typing, sent, delivered and read status; Reply and react to specific messages; Share files and high-resolution photos; Voice message transcriptions; Schedule messages
TextSecure allowed the user to set a passphrase that encrypted the local message database and the user's encryption keys. [125] This did not encrypt the user's contact database or message timestamps. [125] The Signal applications on Android and iOS can be locked with the phone's pin, passphrase, or biometric authentication. [126]
Several closed-source applications have implemented the protocol, such as WhatsApp, which is said to encrypt the conversations of "more than a billion people worldwide" [3] or Google who provides end-to-end encryption by default to all RCS-based conversations between users of their Google Messages app for one-to-one conversations. [4]
Wickr is an American software company based in New York City. [1] It is known for its instant messaging application of the same name. The Wickr instant messaging apps allow users to exchange end-to-end encrypted and content-expiring messages, and are designed for iOS, Android, Mac, Windows, and Linux operating systems.
SecureIM does not authenticate its messages, and therefore it is susceptible to active attacks including simple forms of man-in-the-middle attacks. According to Cerulean Studios, the makers of Trillian, SecureIM enciphers messages with 128-bit Blowfish encryption. It only works with the OSCAR protocol and if both chat partners use Trillian.
Examples of such messaging services include: Skype, Facebook Messenger, Google Hangouts (subsequently Google Chat), Telegram, ICQ, Element, Slack, Discord, etc. Users have more options as usernames or email addresses can be used as user identifiers, besides phone numbers. Unlike the phone-based model, user accounts on a multi-device model are ...