Cryptography

Cryptography

7 h 25 min

Welcome to Hakatemia's cryptography course!

In this course, we will go through the basics of cryptography, the most important encryption algorithms, and their modern applications. The course is beginner-friendly and practical.

The goal is that after the course you will know what cryptography is, what it is used for, and how to choose the right encryption techniques and settings for different purposes.

Introduction to Cryptography

0x0 WHAT IS CRYPTOGRAPHY? BASIC CONCEPTS AND USES

Historical encryption techniques

0x0 CAESAR CIPHER: THE ANCIENT CODE THAT CHANGED COMMUNICATION

0x1 THE ENIGMA MACHINE: HOW WWII CODEBREAKERS UNLOCKED THE GREATEST MYSTERY OF THE WAR

Diversion functions

0x1 WHAT ARE HASH FUNCTIONS AND WHAT ARE THEY USED FOR?

0x2 CRACKING HASHES: HOW DOES IT WORK?

0x3 MD5 HASH - A BROKEN CLASSIC

0x4 PBKDF2, BCRYPT, SCRYPT AND ARGON2

0x5 SHA2 VS SHA3 VS PBKDF2 VS BCRYPT VS SCRYPT VS ARGON2: WHICH TO CHOOSE FOR PASSWORD STORAGE?

MAC algorithms

0x0 WHAT IS MAC AND WHY IS IT NEEDED?

0x1 DIFFERENT MAC ALGORITHMS

Random numbers

0x0 RANDOM NUMBERS IN CRYPTOGRAPHY

Symmetric cryptography

0x0 WHAT IS SYMMETRIC CRYPTOGRAPHY?

0x1 BLOCK CIPHERS

0x2 DES, 3DES AND AES

0x3 STREAM CIPHERS

0x4 INITIALIZATION VECTOR (IV) AND ITS VULNERABILITIES IN CRYPTOGRAPHY

Asymmetric cryptography

0x0 WHAT IS ASYMMETRIC CRYPTOGRAPHY?

0x1 DIGITAL SIGNATURES

0x2 KEY EXCHANGE ALGORITHMS

Encoding Methods (Encoding Methods)

0x0 ENCODING METHODS

SSL/TLS and PKI

0x0 TLS (TRANSPORT LAYER SECURITY): THE FOUNDATION OF INTERNET SECURITY

0x1 CERTIFICATES: BUILDING BLOCKS OF DIGITAL TRUST

0x2 PUBLIC KEY INFRASTRUCTURE (PKI): THE FOUNDATION OF DIGITAL TRUST

0x3 TLS BUILDING BLOCKS: CIPHER SUITES

0x4 SSL/TLS THREATS

Key management

0x0 WHAT IS KEY MANAGEMENT AND WHY IS IT IMPORTANT?

0x1 KEY MANAGEMENT IN CLOUD SERVICES: AWS, GCP AND AZURE

0x2 ON-PREMISE KEY MANAGEMENT WITH HASHICORP VAULT

0x3 CERTBOT AND AUTOMATIC RENEWAL OF CERTIFICATES

0x4 HSM MODULES

0x5 TPM MODULES

Useful tools

0x0 AUDITING SSL/TLS SETTINGS WITH QUALYS' SSL LABS SCANNER

0x1 AUDITING SSH SETTINGS WITH NMAP

0x2 CYBERCHEF - A BROWSER-BASED CRYPTOGRAPHIC SWISS ARMY KNIFE

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As a member of Hakatemia you get unlimited access to Hakatemia modules, exercises and tools, and you get access to the Hakatemia Discord channel where you can ask for help from both instructors and other Hakatemia members.