Managing Cryptography

I n the age of the Internet, cryptography has become increasingly important. When data is sent across insecure networks, you need to make sure that data is protected. When communicating with a host on the other side of the world, you need to make sure the host is really the host you think it is. To make sure, applied cryptography can help. In this chapter, you will learn how to use OpenSSL to implement a secure cryptographic infrastructure.

Specifically, I'll discuss the following subjects:

• Introducing SSL

• Creating a certificate authority

• Creating certificates

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