| Description |
1 online resource (342 p.) |
| Contents |
Cover -- Title page -- Copyright and Credits -- Dedication -- Foreword -- Contributors -- Table of Contents -- Preface -- Part 1: Introduction -- Chapter 1: OpenSSL and Other SSL/TLS Libraries -- What is OpenSSL? -- The history of OpenSSL -- What's new in OpenSSL 3.0? -- Comparing OpenSSL with GnuTLS -- Comparing OpenSSL with NSS -- Comparing OpenSSL with Botan -- Comparing OpenSSL with lightweight TLS libraries -- Comparing OpenSSL with LibreSSL -- Comparing OpenSSL with BoringSSL -- Summary -- Part 2: Symmetric Cryptography -- Chapter 2: Symmetric Encryption and Decryption |
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Technical requirements -- Understanding symmetric encryption -- An overview of the symmetric ciphers supported by OpenSSL -- Comparing block ciphers and stream ciphers -- Understanding symmetric cipher security -- How many bits of security is enough? -- Reviewing the AES cipher -- Reviewing DES and 3DES ciphers -- Reviewing the RC4 cipher -- Reviewing the ChaCha20 cipher -- Reviewing other symmetric ciphers supported by OpenSSL -- Block cipher modes of operation -- Reviewing the Electronic Code Book mode -- Reviewing CBC mode -- Reviewing CTR mode -- Reviewing GCM -- Reviewing AES-GCM-SIV |
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Other block cipher operation modes -- Choosing the block cipher operation mode -- Padding for block ciphers -- How to generate a symmetric encryption key -- Downloading and installing OpenSSL -- How to encrypt and decrypt with AES on the command line -- Initializing and uninitializing OpenSSL library -- How to compile and link with OpenSSL -- How to encrypt with AES programmatically -- Implementing the encryption program -- Running the encrypt program -- How to decrypt with AES programmatically -- Implementing the decrypt program -- Running the decrypt program -- Summary |
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Chapter 3: Message Digests -- Technical requirements -- What are message digests and cryptographic hash functions? -- Why are message digests needed? -- Data integrity verification -- Basis for HMAC -- Digital signatures -- Network protocols -- Password verification -- Content identifier -- Blockchain and cryptocurrencies -- Proof-of-work -- Assessing the security of cryptographic hash functions -- Overview of the cryptographic hash functions supported by OpenSSL -- Reviewing the SHA-2 family of hash functions -- Reviewing the SHA-3 family of hash functions |
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Reviewing the SHA-1 and SHA-0 hash functions -- Reviewing the MD family of hash functions -- Reviewing the BLAKE2 family of hash functions -- Reviewing less popular hash functions supported by OpenSSL -- Which cryptographic hash function should you choose? -- How to calculate a message digest on the command line -- How to calculate the message digest programmatically -- Implementing the digest program -- Running the digest program -- Summary -- Chapter 4: MAC and HMAC -- Technical requirements -- What is a MAC? -- Understanding MAC function security -- HMAC -- a hash-based MAC |
| Note |
MAC, encryption, and the Cryptographic Doom Principle |
| Summary |
Use OpenSSL to add security features to your application, including cryptographically strong symmetric and asymmetric encryption, digital signatures, SSL/TLS connectivity, and PKI handling Key Features Secure your applications against common network security threats using OpenSSL Get to grips with the latest version of OpenSSL, its new features, and advantages Learn about PKI, cryptography, certificate authorities, and more using real-world examples Book Description 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. What you will learn Understand how to use symmetric cryptography Get to grips with message digests, MAC, and HMAC Discover asymmetric cryptography and digital signatures Focus on how to apply and use X.509 certificates Dive into TLS and its proper usage Manage advanced and special usages of TLS Find out how to run a mini certificate authority for your organization Who this book is for This book is for software developers, system administrators, DevOps specialists, network security engineers, and analysts, or anyone who wants to keep their applications and infrastructure secure. Software developers will learn how to use the OpenSSL library to empower their software with cryptography and TLS. DevOps professionals and sysadmins will learn how to work with cryptographic keys and certificates on the command line, and how to set up a mini-CA for their organization. A basic understanding of security and networking is required. |
| Subject |
OpenSSL.
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OpenSSL |
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Data encryption (Computer science)
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Computer networks -- Security measures -- Computer programs.
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Chiffrement (Informatique) |
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Réseaux d'ordinateurs -- Sécurité -- Mesures -- Logiciels. |
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Computer networks -- Security measures -- Computer programs |
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Data encryption (Computer science) |
| Added Author |
Adolfsen, Jarle.
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| Other Form: |
Print version: Khlebnikov, Alexei Demystifying Cryptography with OpenSSL 3. 0 Birmingham : Packt Publishing, Limited,c2022 |
| ISBN |
9781800562226 electronic book |
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1800562225 electronic book |
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