The SSL/TLS protocol which is the 's' in 'https', bolsters secure communications all over the internet. SSL certificates are a small data files that cryptographically establish an encrypted link between a web server and a browser. This post explores the role of SSL certificates in trustful and secure communication.

The Diffie-Hellman key exchange was the first widely used method of safely exchanging keys over an insecure channel. This post discusses about the DH algorithm mathematically, it's security and vulnerabilities.