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Solved Challenges

Mathematics Quadratic Residues 25
General Modular Arithmetic 1 20
Symmetric Ciphers Keyed Permutations 5
Diffie-Hellman Computing Public Values 25
Diffie-Hellman Working with Fields 10
Crypto on the Web JWT Sessions 10
General CERTainly not 30
General SSH Keys 35
General Modular Arithmetic 2 20
RSA Everything is Big 70
RSA Modulus Inutilis 50
RSA Salty 20
RSA Square Eyes 35
RSA Manyprime 40
RSA Monoprime 30
General Extended GCD 20
General Greatest Common Divisor 15
General You either know, XOR you don't 30
Crypto on the Web Token Appreciation 5
RSA Inferius Prime 30
RSA Factoring 15
RSA RSA Decryption 20
RSA Private Keys 20
RSA Euler's Totient 20
RSA Public Keys 15
General Favourite byte 20
RSA Modular Exponentiation 10
General XOR Properties 15
General XOR Starter 10
General Encoding Challenge 40
General Bytes and Big Integers 10
General Base64 10
General Hex 5
General ASCII 5
Introduction Network Attacks 5
Introduction Great Snakes 3
Introduction Finding Flags 2

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