ProCodeCG Kids Half-Day Coding Camp Cryptography #Day 2

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Today we started to do encryption and decryption with substitution cipher!

Preparation before the class started

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Digilife Dago is a very nice and comfortable place, we have great internet connection, accessible power sockets, air conditioner, super big screen, clean toilets and a very friendly and nice musholla.

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Most of the kids continue their codes at home and show it to their friends in the morning πŸ˜‰

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Some kids came late due to the heavy traffic, but they quickly set things up to catch up with the class.

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We only have one female student (plus one female captain) in this batch πŸ™‚ Not many girls interested in coding, probably because it is some kind of intimidating? πŸ˜€

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We started encryption and decryption with Caesar Cipher.

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We encrypted some messages and then try to decrypted them.

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We also learned how to do the brute force! This kid (Farrell) count each letter just to find out the key! LOL

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Yeah, and of course, kids love to play during the class πŸ˜€

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The best thing of gathering kids in a class is when they working together and share things

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Give them challenges, and their bright brains will surprise you πŸ™‚

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We also learned about ROT13 πŸ™‚

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And encrypted and decrypted LOTS of messages!

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We also made a decryption competition πŸ˜€

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Some people might say that programmers have no life. That’s not true! πŸ˜‰ Look at how much we are having fun!

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Lunchtime. LOL (with hood and all) LOLIMG_2568

After the lunch we learn some password breaking logics.

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Also about One Time Pad encryption.

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We learned some GUI in Python too, to make the code user-friendly!

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Coding and cryptography might sound pretty darn serious but look at these kids! No frowns at all! πŸ™‚

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And these are the screenshots of a bit of what we’ve learned today!

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Tomorrow we’ll do more encryption and decryption!!! With Vigenere Cipher πŸ˜‰

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