siam

Two robots

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Solved Challenges

Symmetric Ciphers Passwords as Keys 50
Symmetric Ciphers Modes of Operation Starter 15
General CERTainly not 30
General Privacy-Enhanced Mail? 25
Mathematics Chinese Remainder Theorem 40
General Modular Inverting 25
General Modular Arithmetic 2 20
General Modular Arithmetic 1 20
General Extended GCD 20
General Greatest Common Divisor 15
General Lemur XOR 40
General You either know, XOR you don't 30
General Favourite byte 20
General XOR Starter 10
General Encoding Challenge 40
General Bytes and Big Integers 10
General Base64 10
General Hex 5
General ASCII 5
Misc No Leaks 100
Introduction Network Attacks 5
Introduction Great Snakes 3
Introduction Finding Flags 2
Misc Gotta Go Fast 40

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