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x509-certificates

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A powerful bash script that creates SSL certificates with custom CA for development and testing. Interactive setup, multi-domain support, and multiple output formats in one simple tool.

  • Updated May 27, 2025
  • Shell

Console-based PKI-enabled secure chat system in Python demonstrating cryptographic principles (CIANR): Confidentiality, Integrity, Authenticity, and Non-Repudiation. Features RSA/AES encryption, Diffie-Hellman key exchange, X.509 certificates, digital signatures, and MySQL-backed user authentication.

  • Updated Dec 1, 2025
  • Python

A secure console-based chat system implementing PKI, RSA, Diffie-Hellman, AES-128, and SHA-256 to achieve CIANR (Confidentiality, Integrity, Authenticity, Non-Repudiation). Features self-built CA, X.509 certificate validation, encrypted messaging, and session transcripts for non-repudiation.

  • Updated Nov 16, 2025
  • Python

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