Oxen

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Solved Challenges

General Modular Inverting 25
General Modular Arithmetic 2 20
General Modular Arithmetic 1 20
General You either know, XOR you don't 30
General Greatest Common Divisor 15
RSA Modulus Inutilis 50
RSA Salty 20
Crypto on the Web JWT Sessions 10
Crypto on the Web Token Appreciation 5
RSA RSA Signatures 25
RSA RSA Decryption 20
RSA Private Keys 20
RSA Euler's Totient 20
RSA Public Keys 15
RSA Modular Exponentiation 10
Symmetric Ciphers Round Keys 20
Symmetric Ciphers Structure of AES 15
Symmetric Ciphers Resisting Bruteforce 10
Symmetric Ciphers Keyed Permutations 5
General Favourite byte 20
Introduction Network Attacks 5
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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