Cryptography

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Cryptography for Beginners: Guide, Gear & How to Start

Cryptography

Make and break codes, the math that keeps secrets secret.

Science & Curiosity Games & Puzzles quiet has local groups sedentary challenging

~$17Cost to start

SteepDifficulty

1–3 hrTime / session

2 setup steps, ~$17 all in. Nothing to buy until you say so.

Is it you?

Nobody has scored this against your answers yet. 1–3 hr at a time, $17 to find out whether it sticks.

SpaceTiny

What you need1 thing

The honest floor, taking the cheapest option in each$17

Full cost breakdown →

The path14 quests

ASetting up2 things to sort, in any order$17

Make an account on a puzzle site
Get Python running on your machine

Then the quests

Break a Caesar cipher by hand
Encode and decode a message
Crack a substitution cipher by frequency

11 more, revealed as you go

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From the blog1

Best Hobbies for INTPs: What Actually Holds the Logician MindIf you are an INTP, most "hobbies for your type" lists will bounce right off you, and you already know why. They read like they were generated by someone matching adjectives to activities, with no grasp of the specific thing that makes an INTP quietly abandon a hobby three weeks in. It is not that the hobby got hard. It is that you finished understanding it. Once you have seen how the system works underneath, the doing part can feel almost beside the point, and you drift off toward the next interesting question. So this is the honest version, written for the way you actually engage: driven by curiosity, hungry to understand how things work from the inside, happiest when you are playing with an idea just to see where it goes. The best hobbies for you are not the ones that keep you busy. They are the ones that keep giving you something to figure out. Here is the properly considered list, whether or not the obvious lists include them.

Learn it with a course

Recommended course

Cryptography beginners guide with openssl - Part 2

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Start Cryptography