.NET Framework Security

Chapter 32. Using Cryptography with the .NET Framework: Creating and Verifying XML Digital Signatures

By Brian A. LaMacchia

IN THIS CHAPTER

• XMLDSIG Design Principles and Modes of Use

• The Structure of an XMLDSIG Signature

• Verifying an XMLDSIG Signature

• Extending System.Security.Cryptography.Xml for Custom Processing

In Chapter 30, “Using Cryptography with the .NET Framework: The Basics,” you saw how to use a cryptographic hash function and an asymmetric (public key) algorithm to compute a digital signature for some content. The digital signatures you generated were simply binary arrays that encoded the mathematical output of applying the asymmetric signing function to a hash value. In theory, any binary content can be signed using only the core techniques ...