Monthly Archives: October 2020

Beautiful and compact Web APIs with C# 9, .NET 5.0 and ASP.NET Core

Almost fours year ago I blogged about building lightweight microservices with ASP.NET Core 1.2 (which actually never shipped in such version and later became ASP.NET Core 2.0). The idea there was to drop the notion of bloated MVC controllers, get rid of as much as we can of the usual verbosity of C# based applications, and use a set of simple extension methods and a few cutting edge features of ASP.NET Core to provide a node.js style experience for authoring Web APIs.

The article and the accompanying demo projects received quite a lot of attention, and I even got a chance to speak at some conference about these type of approaches to building focused, small microservices. With the .NET 5.0 in sight (.NET 5.0 RC2 is out at the time of writing this), and some remarkable features of C# 9, this “lightweight Web APIs” concept deserves a revisit, and this is what we will do in this blog post.

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Introduction to quantum computing with Q# – Part 9, BB84 Quantum Key Distribution

This is already part 9 of the series (time flies!). So far we have covered a wide array of topic around the nature of quantum computational units called qubits, superposition, entanglement, single-qubit gates, multi-qubit gates and some interesting concepts from the area of quantum information theory. In this post we will shift our attention to another interesting field in the quantum landscape – quantum cryptography. More specifically, we will explore a reference protocol for quantum key distribution, called BB884, discuss why it’s secure even when using a public channel to exchange qubits and realize a simple demonstrative implementation using Q#.

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