Your client and the server engage in another cryptographic exchange, where they prove to each other that they know the password without ever transmitting the password in plaintext.
This protects against eavesdropping and server-side compromises.
Final Authorization: Only after successful SRP verification does the server grant full authorization for the new session.
5. Session Management and Future Authentication:
Active Sessions: Once logged in, your device creates an "active session" on Telegram's servers. You can view and manage these sessions under Settings > Devices.
future_auth_token: For subsequent logins (e.g., if the app is reinstalled or you log out and log back in on the same device within a certain timeframe), Telegram might use a future_auth_token. This token is telegram number database stored on the client and can allow for faster re-authentication without always needing a fresh SMS code, provided the 2FA password (if set) is still entered. This token is tied to the authorization key and the device.
Cloud Synchronization: All your data (chats, contacts, media) is encrypted and stored in the Telegram cloud, synchronized across all your active sessions.
In essence, Telegram's phone number login is far more than a simple SMS check. It's a robust, multi-stage cryptographic process leveraging MTProto to establish secure, persistent sessions tied to a unique device key, all while using the phone number as the initial, verifiable identity anchor.How Telegram Handles Phone Numbers for Security
Search Engine Optimization (SEO) can be a complex field to navigate, especially when it comes to understanding how different platforms handle user information. With the rise of messaging apps like Telegram, many users are curious about how their personal data, specifically phone numbers, are handled for security purposes. In this article, we will explore how Telegram handles phone numbers for security and what measures are in place to protect user privacy.