by Erik Costlow | Released January 2019 | ISBN: 9781838554972

Learn enough cryptography to solve problems without a math backgroundAbout This VideoUnderstand and apply cryptography, focusing on how systems work not just mathematical conceptsA practical walk through showing how networked systems use cryptography to communicate, and what the risks are when cryptography is not involvedClear explanations of how systems fit together, not just how each individual component worksIn DetailSecurity is paramount for any application. Cryptography occurs all across software fields: it protects all HTTPS traffic between browsers, encrypts phone storage against prying eyes, and can even hide files inside other files through a technique called steganography. This course is for developers looking to design a system that uses cryptography, rather than designing new algorithms. Most developers simply need to put the right pieces together to make their own system work.In this course, you will break down the concepts behind cryptography into simple lessons, covering terminology, algorithms, standards, and encryption/decryption techniques. We will also walk through how cryptographic systems are hacked to bypass (rather than break) their cryptographic capabilities.The course answers questions such as:What is cryptography used for?What are keys and where do they go?Why do networked systems sometimes give certificate validation errors?If I need to encrypt something, how should I do that?By the end of this course, you will recognize cryptographic problems and understand the right knowledge to apply a verifiable solution. Show and hide more Publisher resources Download Example Code

1. Chapter 1 : Cryptographic Introduction
   • The Course Overview 00:02:23
   • Goals of Cryptography and Where It Is Used 00:05:19
   • History of Cryptography and Why You Shouldn’t Build New Algorithms 00:05:30
   • The Architectural Layout of Modern Cryptography 00:05:17
   • Concepts That Will Be Important Later 00:07:27
2. Chapter 2 : Basic Ciphers
   • Symmetric Ciphers and Where They Are Used 00:04:47
   • Basic Encryption with Symmetric Ciphers 00:06:42
   • Hashing and MessageDigest For Validations 00:08:30
   • Common Security Flaws When Using Symmetric Ciphers 00:06:20
3. Chapter 3 : Advanced Ciphers, Asymmetric, and Public Key
   • Asymmetric Ciphers and Where They Are Used 00:04:46
   • Creating A KeyPairGenerator Instance 00:05:18
   • Storing the Java KeyStore 00:07:58
   • Java KeyTool 00:06:10
   • Creating A KeyGenerator Instance 00:03:39
   • Basic Encryption with Asymmetric Ciphers 00:07:46
   • What to Do When PKIX Validation Fails 00:04:32
   • Java Certificate Chains 00:05:16
   • The Key Escrow Problem 00:05:18
4. Chapter 4 : Hacking Techniques – Breaking and Bypassing
   • Using Unique Keys and Certificates 00:05:31
   • Certificate Pinning 00:10:09
   • Signed JAR Files 00:07:29
   • Token Harvesting 00:05:13
   • When and How to Upgrade Algorithms 00:05:35
   • Standard Decompilation Tools 00:07:26
5. Chapter 5 : Putting it all together
   • Encrypting and Decrypting Files 00:08:20
   • Obtaining Certificates from LetsEncrypt or AWS 00:05:58
   • Qualys SSL Labs for Your Servers 00:05:26
   • The DeepViolet Security Analyzer 00:05:41
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