$ ctf42

encrypted_chat

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Flag format: tpctf{...}

This chat service employs robust end-to-end encryption. Some users report that they occasionally receive corrupted text. Nonetheless, security is the top priority, and minor corruption does not compromise confidentiality.

Tips: You have the ciphertext stream from a group chat with 10 participants communicating in natural English encoded in ASCII. The flag is embedded within their messages.

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