The HttpClient class, introduced since .NET Framework 4.5, is probably one of the most used classes in the .NET platform. It’s important to know how to manage HttpClient connections in order to avoid sockets exhaustion and DNS issues.
Nowadays, security is an essential aspect of the software development process. RSA is a cryptographic algorithm that uses a key pair to allow public-key encryption. This article explains how to create RSA keys with .NET.