OTRv4Plus

Post-quantum secure messaging client for Termux over IRC and XMPP

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OTRv4Plus is a free, open-source secure messaging client for Termux supporting IRC and XMPP with post-quantum OTRv4 encryption — ML-KEM-1024 key rotation, ML-DSA-87 hybrid authentication, and a double ratchet, with secrets zeroized on drop and no traces left on exit. It's aimed at privacy and security-conscious users who want chat protected against future quantum attacks.

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