Top 20 NuGet security Packages

Generate and validate HMAC hashes for objects.
Owin authentication handler for Obsidian Portal
The library provides the necessary encryption key management and protection using a combination of ssl certificates, blob and table storage in order to offer cryptographic services to Azure Websites
A utility to easily run string properties through Microsoft's AntiXSS library
Portable cross-platform ADO-style SQLite library enabling table-record-level and table-column-level encryption. *Please see the project site for details about what this library does, and how to use it.*
This package provides authentication and authorization support for Code Torch apps
This is the first publicly available .NET wrapper developed for Qualys SSL Labs Assessment API's that allow the consumer to test SSL servers on the public internet. This wrapper easies the communication to the API's for .NET developers which allows you as the developer to focus on your project rath...
Adaptation of the NodaTime benchmarks framework.
Middlewares to help secure your apps
Aes data protection provider for Microsoft.Owin.Security.
A metrics observer that push metrics to datadog plataform.
AngularJS common utility functions and token-based authentication service
A logging library based on ELMAH to simplify security logging like the following: Log.Login(model.UserName);
Capturing CLR and application-level metrics. So you know what's going on. An port of Coda Hale's Metrics library targeting the .NET 2.0 CLR. This is not an idiomatic port but is very similar to coda library. The main difference resides in the way this libray handles con...
Jali is a cross platform execution context of explicitly provided crosscutting concers. NJali.Jali is the .NET implementation.
DSInternals SAM implements a client for the Security Accounts Manager Remote Protocol (SAM-R) and Local Security Authority Remote Protocol(MS-LSAD or LSARPC). It can be used to import password hashes into Active Directory or to query and modify LSA Policy.
This utility makes writing secure websites easier by wrapping the query string System.Web.HttpRequest's QueryString, Form, and Cookie properties with an easy-to-extend sanitizer.
This utility makes writing secure MVC websites easier by allowing action parameters to be passed as UnsafeValue objects.
SecurityLayer - Domain
A library for enabling ASP.Net Identity to work with Umbraco front-end members. Original code used a SqlCe data store. This one uses a MySql database rather than a Sql CE database