Randhana https://randhana.com/blog Thoughtful work. Real impact. en-us pulathisi.kariyawasam@gmail.com (Pulathisi Kariyawasam) pulathisi.kariyawasam@gmail.com (Pulathisi Kariyawasam) Wed, 20 May 2026 00:00:00 GMT https://randhana.com/blog/complete-guide-to-secure-connections-tls-ssl How HTTPS Really Works: TLS Handshakes, Certificates and Encryption Explained https://randhana.com/blog/complete-guide-to-secure-connections-tls-ssl A comprehensive deep-dive into TLS/SSL security - from TCP handshakes to certificate verification, covering everything you need to know about secure network connections, encryption, and how HTTPS really works. Wed, 20 May 2026 00:00:00 GMT pulathisi.kariyawasam@gmail.com (Pulathisi Kariyawasam) tlsencryptioncertificateshttpscryptography https://randhana.com/blog/ssl_tls_uncovered_real_world_insights SSL/TLS in Production: Deep Dive into Certificates, Private Keys, and Deployment https://randhana.com/blog/ssl_tls_uncovered_real_world_insights A detailed discussion of SSL/TLS in production: private keys, certificates, self-signed vs CA certificates, Let's Encrypt, deployment best practices, and real-world considerations. Sat, 20 Dec 2025 00:00:00 GMT pulathisi.kariyawasam@gmail.com (Pulathisi Kariyawasam) sslsecuritycertificatesencryption https://randhana.com/blog/understanding-diffie-hellman-key-exchange Diffie-Hellman Explained: How Two People Share Secrets Over Public Channels https://randhana.com/blog/understanding-diffie-hellman-key-exchange A step-by-step mathematical deep-dive into how Diffie-Hellman key exchange works - from simple paint mixing analogies to the discrete logarithm problem that makes it unbreakable. Fri, 08 May 2026 00:00:00 GMT pulathisi.kariyawasam@gmail.com (Pulathisi Kariyawasam) cryptographydiffie-hellmanmathematicskey-exchangesecurityencryptionmodular-arithmetic