Security and networking are essential features of software today. The modern internet is full of worms, Trojan horses, men-in-the-middle, and other threats. This is why maintaining security is more important than ever.
OpenSSL is one of the most widely used and essential open source projects on the internet for this purpose. If you are a software developer, system administrator, network security engineer, or DevOps specialist, you’ve probably stumbled upon this toolset in the past – but how do you make the most out of it? With the help of this book, you will learn the most important features of OpenSSL, and gain insight into its full potential.
This book contains step-by-step explanations of essential cryptography and network security concepts, as well as practical examples illustrating the usage of those concepts. You’ll start by learning the basics, such as how to perform symmetric encryption and calculate message digests. Next, you will discover more about cryptography: MAC and HMAC, public and private keys, and digital signatures. As you progress, you will explore best practices for using X.509 certificates, public key infrastructure, and TLS connections.
By the end of this book, you’ll be able to use the most popular features of OpenSSL, allowing you to implement cryptography and TLS in your applications and network infrastructure.

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Spis treści

Demystifying Cryptography with OpenSSL 3.0. Discover the best techniques to enhance your network security with OpenSSL 3.0 eBook -- spis treści

• 1. OpenSSL and Other SSL/TLS Libraries
• 2. Symmetric Encryption and Decryption
• 3. Message Digests
• 4. MAC and HMAC
• 5. Derivation of an Encryption Key from a Password
• 6. Asymmetric Encryption and Decryption
• 7. Digital Signatures and Their Verification
• 8. X.509 Certificates and PKI
• 9. Establishing TLS Connections and Sending Data over Them
• 10. Using X.509 Certificates in TLS
• 11. Special Usages of TLS
• 12. Running a Mini-CA