Summary

Encryption is such as vast topic that we could write books dedicated to just encryption. In this chapter, we covered encryption. We provided an introduction to the history of encryption and looked at how encryption has evolved. We also covered the most common encryption ciphers, along with the most common attacks on encryption technologies today. We covered some classical ciphers that are still being used today. As you do research and read up on rampant malware, you will often find that classic ciphers are used, along with modern ones. In the next chapter, we will start looking at reconnaissance and get our hands dirty with hands-on labs.