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Learn Cryptography in Go

Learn how encryption, password security, and ciphers work at a lower level than most developers are used to.

What will you learn?

Ever wondered how your data stays safe online? This deep-dive in the Go programming language will teach you all about encryption, password security, ciphers, and more. After you master the fundamentals, you'll learn how each cryptographic primitive is used in real-world applications.

Chapter List

1
Symmetric Encryption
Learn the basics of cryptography: encrypting and decrypting a secret message with a key
2
Encoding
To be able to work with encrypted data, you need to understand how information is encoded in different formats
3
Brute Force
Learn about the most primitive, but most important kind of crypto attack
4
Caesar Cipher
Learn about the fundamentals of ciphers, starting with Julius Caesar's famous cipher
5
XOR
Study the importance of the XOR operation in cryptography and how it can be used to create the perfect cipher
6
Stream Ciphers
Stream ciphers can be used to encrypt data as it flows through a system
7
Block Ciphers
Block ciphers are commonly used to encrypt large amounts of data at rest, like entire hard drives
8
DES
DES is an older block cipher that's important to understand to appreciate modern block ciphers
9
AES
AES is a secure, modern block cipher that's used in many production applications
10
Asymmetric Encryption
Asymmetric encryption is used in HTTPS, digital signatures, and really anywhere two parties need to securely communicate
11
RSA
RSA is one of the most popular asymmetric encryption algorithms
12
Hash Functions
Hashing has many applications in cryptography, including password security and message integrity
13
Digital Signatures
Digital signatures are a way to prove that a message was sent by a particular party
14
KDFs
Key derivation functions are how we derive keys from passwords or from other keys securely

Join 4,153 students in the Learn Cryptography in Go course

Read reviews of their learning experiences

My first exposure to cryptography. Learned a lot of basics. As a bonus, the fact that a byte is 8 bits or 2 hex that converts to 0-255 finally clicked. Also learned a lot of new parts of the go standard library.

(5/5)
Todd Naumann profile image

Todd Naumann

United States

A collection of high-level hand-wavy concept stuff you can get just as well from Wikipedia. Followed by an in-depth test on all the coding stuff that they skipped. HeRe'S sOmE dOcUmEnTaTiOn!

(1/5)
Duncan Watt profile image

Duncan Watt

Canada

Most interesting course to me so far. Basics of cryptography with practical examples. My recommendation and thx to authors!

(5/5)
Andrew profile image

Andrew

Ukraine

absolute banger

(5/5)
infopek profile image

infopek

Hungary

I feel a lot more comfortable to build systems that require user authentication!

(5/5)
Daniel Hirsch profile image

Daniel Hirsch

Immenstadt, Bavaria, Germany

Fun and easy. Use this for a quick review before taking the CompTIA Security+ or in tandem.

(5/5)
Alec Moore profile image

Alec Moore

United States

Great course. I learnt a great deal from this: Cryptography as a subject moves on and the last time I looked at it in any detail 'pgp' was still regarded as a munitian with export bans from the US. :)

(5/5)
Geoff Riley profile image

Geoff Riley

Warrington, England

Great explainer and excellent use of the practical applications of the otherwise math-heavy theory behind cryptography. I wish there was more!

(5/5)
Thomas Reed profile image

Thomas Reed

USA

A great compliment to also learning about the theory in school

(5/5)
John profile image

John

Canada

Showing 1-9 of 40

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The only way to become a great developer is to write a lot of code

Avoid tutorial hell

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Build portfolio projects

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Delve deeper

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Frequently asked Questions

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Yes! It's free to create an account and start learning. You'll get all the immersive and interactive features for free for a few chapters. After that, if you still haven't paid for a membership, you'll be in read-only (content only) mode.

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