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Keykey phone number
Keykey phone number







  1. #KEYKEY PHONE NUMBER GENERATOR#
  2. #KEYKEY PHONE NUMBER VERIFICATION#

The same is valid for the key generation between the impostor and the party B. Party A will generate a shared key with B - or whoever pretends to be B - without having a second chance to change its exponent a depending on the value g_b received from the other side and the impostor will not have a chance to adapt his value of b depending on g_a, because it has to commit to a value of g_b before learning g_a. If some impostor is pretending to be either A or B and tries to perform a Man-in-the-Middle Attack on this Diffie-Hellman key exchange, the above still holds. Then A has to send its value g_a it cannot change it even though it knows g_b now, because the other party B would accept only a value of g_a that has a hash specified in the very first message of the exchange. At this point, B commits to a specific value of g_b without knowing g_a. B has to choose its value of b and g_b without knowing the true value of g_a, so that it cannot try different values of b to force the final key (g_a)^b to have any specific properties (such as fixed lower 32 bits of SHA256(key)). The idea here is that A commits to a specific value of a (and of g_a) without disclosing it to B.

  • B : checks hash(g_a) = g_a_hash, then computes key (g_a)^b.
  • A->B : (computes key (g_b)^a, then) sends g_a := g^a.
  • B->A : (stores g_a_hash, generates b and) sends g_b := g^b.
  • A->B : (generates a and) sends g_a_hash := hash(g^a).
  • We use a three-message modification thereof that works well when both parties are online (which also happens to be a requirement for voice calls):

    keykey phone number keykey phone number

  • B->A : (generates b and true key (g_a)^b, then) sends g_b := g^b.
  • A chooses a random value of a, 1 B : (generates a and) sends g_a := g^a.
  • The client is expected to check whether p is a safe prime and perform all the security checks necessary for secret chats.

    #KEYKEY PHONE NUMBER GENERATOR#

  • A executes messages.getDhConfig to find out the 2048-bit Diffie-Hellman prime p and generator g.
  • Below is the entire exchange between the two communicating parties, the Caller (A) and the Callee (B), through the Telegram servers (S).

    #KEYKEY PHONE NUMBER VERIFICATION#

    However, we have introduced some important changes to facilitate the key verification process. We recommend studying the linked article before proceeding. The Diffie-Hellman key exchange, as well as the whole protocol used to create a new voice call, is quite similar to the one used for Secret Chats. Other negotiations will be eventually documented elsewhere. This document details the generation of the encryption key. All of this is accomplished in parallel with the aid of several Telegram API methods and related notifications. Besides that, the parties have to negotiate the protocols to be used, learn the IP addresses of each other or of the Telegram relay servers to be used (so-called reflectors), and generate a one-time encryption key for this voice call with the aid of Diffie-Hellman key exchange. The calling party needs to contact the party to be called and check whether it is ready to accept the call.

  • Security Guidelines for Client Developersīefore a voice call is ready, some preliminary actions have to be performed.
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  • End-to-End Encryption in Voice and Video Calls.








  • Keykey phone number