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Solved Challenges

Symmetric Ciphers Round Keys 20
Symmetric Ciphers Structure of AES 15
Symmetric Ciphers Resisting Bruteforce 10
General Transparency 50
General SSH Keys 35
General CERTainly not 30
RSA Everything is Still Big 100
RSA Crossed Wires 100
RSA Everything is Big 70
RSA Modulus Inutilis 50
RSA Salty 20
RSA Manyprime 40
RSA Square Eyes 35
RSA RSA Signatures 25
RSA Monoprime 30
RSA Inferius Prime 30
Mathematics Modular Square Root 35
General Privacy-Enhanced Mail? 25
Misc Gotta Go Fast 40
Crypto on the Web JWT Secrets 25
Crypto on the Web No Way JOSE 20
Mathematics Legendre Symbol 35
Mathematics Quadratic Residues 25
General Lemur XOR 40
General Encoding Challenge 40
General Modular Inverting 25
General Modular Arithmetic 2 20
General Modular Arithmetic 1 20
General Extended GCD 20
General You either know, XOR you don't 30
General Favourite byte 20
General XOR Properties 15
RSA Factoring 15
Crypto on the Web JWT Sessions 10
Symmetric Ciphers Keyed Permutations 5
Crypto on the Web Token Appreciation 5
General Greatest Common Divisor 15
Introduction Network Attacks 5
RSA RSA Decryption 20
RSA Private Keys 20
RSA Euler's Totient 20
RSA Public Keys 15
RSA Modular Exponentiation 10
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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