azw

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Solved Challenges

Mathematics Successive Powers 60
Symmetric Ciphers Confusion through Substitution 25
Symmetric Ciphers Round Keys 20
Symmetric Ciphers Structure of AES 15
Symmetric Ciphers Resisting Bruteforce 10
Symmetric Ciphers Keyed Permutations 5
Mathematics Modular Binomials 80
Mathematics Adrien's Signs 80
Mathematics Chinese Remainder Theorem 40
Mathematics Modular Square Root 35
Mathematics Legendre Symbol 35
Mathematics Quadratic Residues 25
General Modular Inverting 25
General Modular Arithmetic 2 20
General Extended GCD 20
General Modular Arithmetic 1 20
General You either know, XOR you don't 30
Crypto on the Web No Way JOSE 20
Crypto on the Web Token Appreciation 5
Crypto on the Web JWT Sessions 10
General SSH Keys 35
General Privacy-Enhanced Mail? 25
General Lemur XOR 40
General Encoding Challenge 40
General Greatest Common Divisor 15
General Favourite byte 20
General XOR Properties 15
General XOR Starter 10
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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