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harvardcs50cybersecurity

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SecureLink is a secure messaging and attack-detection platform with FastAPI, bcrypt/JWT auth, AES-GCM encryption, HMAC, RSA signatures, DH key exchange, replay/tamper/MITM simulations, PostgreSQL, Redis, Swagger UI, Streamlit, Prometheus, Grafana, Docker, Caddy TLS, and CI-tested workflows.

  • Updated May 23, 2026
  • Python

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