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Security · 1h ago

How MTProto Obfuscation and FakeTLS Evade Deep Packet Inspection

By Meridian48 News Desk · Summarised from DEV Community ·

Telegram's MTProto protocol uses fixed byte signatures that DPI filters easily block. Obfuscation layers randomize initial bytes, random padding blurs traffic patterns, and FakeTLS wraps connections in valid HTTPS handshakes. These techniques together make it difficult for censors to detect and block Telegram traffic.

Meridian48 take
While clever, these evasion methods highlight the cat-and-mouse game between censorship and circumvention, with no permanent winner.
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How MTProto Obfuscation and FakeTLS Defeat Deep Packet Inspection →
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