Microsoft® Visual C# 2005 Unleashed

Chapter 15. Cryptography and Data Protection

IN THIS CHAPTER

• Introduction to Cryptography
• Using Secret-Key Encryption
• Using Public-Key Encryption
• Working with Hashes and Digital Signatures
• Using the Data Protection API (DPAPI)

Protecting the data used and generated by your application has become exceedingly important in this day and age. The spread of viruses throughout the Internet is so commonplace that most consumers with PCs own some form of virus protection. When designing and building applications that will be exposed to the Internet, one of the primary concerns is security: preventing theft of valuable data as well as controlling damage from malicious attackers.

If you send data over a clear channel that anyone else can read, you can ...