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WhatsApp (officially WhatsApp Messenger) is an instant messaging (IM) and voice-over-IP (VoIP) service owned by technology conglomerate Meta. [14] It allows users to send text, voice messages and video messages, [15] make voice and video calls, and share images, documents, user locations, and other content.
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. In addition to authentication and encryption, OTR ...
Online chat is any kind of communication over the Internet that offers a real-time transmission of text messages from sender to receiver. Chat messages are generally short in order to enable other participants to respond quickly. Thereby, a feeling similar to a spoken conversation is created, which distinguishes chatting from other text-based ...
In the meantime, WhatsApp is adding an extra layer of privacy on iOS with support for Touch ID and Face ID. The update (version 2.19.20) allows users to lock their messages behind their iPhone's ...
WhatsApp will finally let people edit messages after they are sent. The feature is now rolling out to users across the world and will be available to everyone in the “coming weeks”, said Mark ...
The WhatsApp support staff announce that messages were encrypted in the "latest version" of the WhatsApp software for iOS and Android (but not BlackBerry, Windows Phone, and Symbian), without specifying the cryptographic method. Feb 2013: WhatsApp's user base grows to about 200 million active users and its staff to 50. Jul 2013
On secondary desktop devices only (phone required to sync messages) No WhatsApp: On secondary desktop devices only (phone required to sync messages; 4 linked devices) Phone must not be offline for ≥ 14 days; message history limited to 3 months. Unsupported on iPad, iPod Touch. Yes Yes Yes No No Wire: Yes: No No No Client
Instant Messaging and Presence Protocol. Instant Messaging and Presence Protocol ( IMPP) was an IETF working group created for the purpose of developing an architecture for simple instant messaging and presence awareness/ notification. It was created on 25 February 1999 and concluded on 8 September 2004 .