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Telegram offers end-to-end encryption in voice and video calls, [10] and in optional private chats, which Telegram calls Secret Chats. Telegram also has social networking features, allowing users to post stories, create large public groups with up to 200,000 members, or share one-way updates to unlimited audiences in so-called channels. [11]
Only Telegram’s opt-in ‘secret chat’ feature is end-to-end encrypted, which would prevent Telegram from accessing the chat contents.” Telegram says it has more than 950 million active users.
A petition calling for the personal and photo line of the key suspect, "Dr. Doctor," was filed on March 18 in the Cheong Wa Dae National Petition, and a petition was filed on March 20 calling for the disclosure of all participants in the Telegram Secret Room. By March 24, more than 2.57 million and 1.85 million people participated, respectively.
[4] [5] Telegram management insists that this requirement is technically impracticable, since keys of opt-in secret chats are stored on users' devices and are not in Telegram's possession. [6] Pavel Durov, Telegram's co-founder, said that the FSB's demands violated the constitutional rights of Russian citizens to the privacy of correspondence. [7]
The newspaper Moskovskij Komsomolets said it feared that "Western intelligence services could obtain the messenger's encryption keys" and that "Telegram might become a tool of NATO" if Durov is forced by French prosecution and state law enforcement to de-encrypt chats that "contain a huge amount of vitally important, strategic information" so ...
The group chat protocol is a combination of a pairwise double ratchet and multicast encryption. [18] In addition to the properties provided by the one-to-one protocol, the group chat protocol provides speaker consistency, out-of-order resilience, dropped message resilience, computational equality, trust equality, subgroup messaging, as well as ...
The shared secret can be used, for instance, as the key for a symmetric cipher, which will be, in essentially all cases, much faster. In an asymmetric key encryption scheme, anyone can encrypt messages using a public key, but only the holder of the paired private key can decrypt such a message.
For some features: secret chats, [117] voice and video calls, [118] and voice chats in groups [118] No No No Tencent QQ: No [119] [120] No No No No Threema: No A valid phone number or email address is not required for registration & login. However, the mobile app serves as the primary device, due to the end-to-end encryption architecture. [121 ...