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Demystifying Cryptography with OpenSSL 3.0

You're reading from   Demystifying Cryptography with OpenSSL 3.0 Discover the best techniques to enhance your network security with OpenSSL 3.0

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Product type Paperback
Published in Oct 2022
Publisher Packt
ISBN-13 9781800560345
Length 342 pages
Edition 1st Edition
Languages
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Author (1):
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Alexei Khlebnikov Alexei Khlebnikov
Author Profile Icon Alexei Khlebnikov
Alexei Khlebnikov
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Table of Contents (20) Chapters Close

Preface 1. Part 1: Introduction
2. Chapter 1: OpenSSL and Other SSL/TLS Libraries FREE CHAPTER 3. Part 2: Symmetric Cryptography
4. Chapter 2: Symmetric Encryption and Decryption 5. Chapter 3: Message Digests 6. Chapter 4: MAC and HMAC 7. Chapter 5: Derivation of an Encryption Key from a Password 8. Part 3: Asymmetric Cryptography and Certificates
9. Chapter 6: Asymmetric Encryption and Decryption 10. Chapter 7: Digital Signatures and Their Verification 11. Chapter 8: X.509 Certificates and PKI 12. Part 4: TLS Connections and Secure Communication
13. Chapter 9: Establishing TLS Connections and Sending Data over Them 14. Chapter 10: Using X.509 Certificates in TLS 15. Chapter 11: Special Usages of TLS 16. Part 5: Running a Mini-CA
17. Chapter 12: Running a Mini-CA 18. Index 19. Other Books You May Enjoy

Understanding TLS certificate pinning

Sometimes certificate verification is not done using traditional Public Key Infrastructure (PKI) rules with a certificate store, trusted certificates, and certificate verification chains. One of the non-standard certificate verification methods is TLS certificate pinning. The TLS client pins a particular certificate to a server, meaning that it expects the server to have that exact certificate. There are variations of certificate pinning, such as pinning a few possible certificates instead of just one, pinning a certificate public key instead of the certificate itself, or pinning a particular issuer certificate. It is possible to use TLS certificate pinning both as an addition to the standard certificate verification and as a replacement for it.

Certificate pinning is not a very popular certificate verification method for HTTPS servers on the public internet. However, while you might have never thought about it, public key pinning is actually...

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