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Windows Communication Foundation (WCF) is a secure, reliable, and scalable messaging platform for the .NET Framework 3.0.With WCF, SOAP messages can be transmitted over a variety of supported protocols including IPC (named pipes), TCP, HTTP and MSMQ. Like any distributed messaging platform, you must establish security policies for protecting messages and for authenticating and authorizing calls. This article will discuss how WCF accomplishes this.

Use these learning paths to find a range of Microsoft training references and resources on security threats and appropriate countermeasures. These paths provide information on security planning, prevention, detection, and response.

UDP, the lesser-known sibling of TCP, is used for DNS resolution, SNMP network status, Kerberos security, digital media streaming, VoIP, and lots more. Learn how to put UDP to work for you.

Discusses the OPC Digital Signing Framework, providing an overview of the package components and supporting services, and examples of signing policy and its implementation.

This article will demonstrate simple methods one can use to interact with today's comics applications, and more importantly, to transform your printed comic books into a digital library that can be stored on Compact Discs (CD) or Digital Versatile Discs (DVD) in an orderly manner (in CBZ or CBR formats).

This article describes how to get information about digital certificates stored on your local machine. It also shows how to search certificate by name and retrieve certificate hash.

Digital Ink is only a collection of lines rendered on the screen, but with Ink recognition and analysis, you can turn it into meaningful information such as text, drawings, gestures, commands, and even the relationship between two shapes. The Tablet PC SDK makes it surprisingly simple to detect all these types of information in Digital Ink.

This is a self paced workshop designed to lead you through the benefits and features of .NET security. There are over 50 code examples and many more walkthroughs showing you how to use the .NET security classes and how to administer .NET security policy. The workshop covers code access security, role based security, access control lists, symmetric and asymmetric cryptography, certificates, CMS/PKCS, data protection APIs, and encrypting and signing XML.

Q: I'm using locks in my application to synchronize work on a bunch of threads. Unfortunately, I'm doing something incorrectly and my threads seem to just stop sometimes. I think I'm running into deadlocks, but I'm not sure how to find them. Is there any way I can do so programmatically? I'd like an exception to be thrown when a deadlock is encountered.
A: First, it's important to understand what a deadlock among threads is and the conditions that lead to one. Threads deadlock when waiting on each other to release some resources, but by performing that blocking wait, they're not releasing the resources the other threads need in order to unblock. The threads can't make any progress until the resources are released, but because they're not making progress, the resources will never be released, the threads are locked up, and thus "deadlock"...

This article covers what the differences are between hashing, MAC and digital signatures. It presumes a certain level of knowledge about encryption methods especially the difference between symmetric and asymmetric encryption. The article does not cover how to perform encryption or about key management. There are some code examples on how to perform each of the technologies using C# in .NET v2.0.