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Submitted Solutions

Greatest Common Divisor 0
Extended GCD 0
Modular Arithmetic 1 0
Modular Arithmetic 2 0
Quadratic Residues 0
Structure of AES 0
Round Keys 0

Solved Challenges

Symmetric Ciphers Round Keys 20
Symmetric Ciphers Structure of AES 15
Symmetric Ciphers Resisting Bruteforce 10
Symmetric Ciphers Keyed Permutations 5
General Encoding Challenge 40
General Lemur XOR 40
Mathematics Quadratic Residues 25
General Modular Inverting 25
General Modular Arithmetic 2 20
General Modular Arithmetic 1 20
General Extended GCD 20
Introduction Network Attacks 5
General You either know, XOR you don't 30
General Favourite byte 20
General Greatest Common Divisor 15
General XOR Properties 15
General XOR Starter 10
General Bytes and Big Integers 10
General Base64 10
General Hex 5
General ASCII 5
Introduction Great Snakes 3
Introduction Finding Flags 2

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