Johnxagos

Two robots

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Solved Challenges

Mathematics Chinese Remainder Theorem 40
Diffie-Hellman Parameter Injection 60
Diffie-Hellman Deriving Symmetric Keys 40
Diffie-Hellman Generators of Groups 20
Diffie-Hellman Working with Fields 10
Symmetric Ciphers Round Keys 20
Symmetric Ciphers Structure of AES 15
Symmetric Ciphers Resisting Bruteforce 10
Symmetric Ciphers Keyed Permutations 5
Crypto on the Web JSON in JSON 40
Crypto on the Web JWT Secrets 25
Crypto on the Web No Way JOSE 20
Crypto on the Web JWT Sessions 10
Crypto on the Web Token Appreciation 5
RSA RSA Decryption 20
RSA Euler's Totient 20
RSA Private Keys 20
RSA Public Keys 15
RSA Modular Exponentiation 10
Mathematics Successive Powers 60
Mathematics Quadratic Residues 25
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 Properties 15
General XOR Starter 10
General Encoding Challenge 40
General Bytes and Big Integers 10
General Base64 10
General Hex 5
Introduction Finding Flags 2
General ASCII 5

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