Synercoding 

With this package you can use ASP.NET Forms Authentication, alot of the code for this package was taken (and altered) from https://github.com/Microsoft/referencesource/tree/master/System.Web/Security under MIT license.

A library that implements various encryption and hashing functions.

A library that helps you implement a UnitOfWork pattern

Middleware to add redirects and rewrites to an ASP.NET 5 application.

Contains classes which makes it easy to quickly create a pdf file