tchenio

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Solved Challenges

Mathematics Successive Powers 60
Mathematics Adrien's Signs 80
Lattices Gaussian Reduction 50
Mathematics Modular Square Root 35
RSA Everything is Big 70
RSA Crossed Wires 100
Symmetric Ciphers Lazy CBC 60
Symmetric Ciphers Symmetry 50
Mathematics Modular Binomials 80
Symmetric Ciphers Flipping Cookie 60
Symmetric Ciphers ECB CBC WTF 55
Mathematics Chinese Remainder Theorem 40
Mathematics Legendre Symbol 35
Mathematics Quadratic Residues 25
Lattices What's a Lattice? 40
Lattices Gram Schmidt 30
Lattices Size and Basis 15
Lattices Vectors 10
Symmetric Ciphers ECB Oracle 60
Symmetric Ciphers Passwords as Keys 50
Diffie-Hellman Export-grade 100
Diffie-Hellman Parameter Injection 60
Diffie-Hellman Deriving Symmetric Keys 40
Diffie-Hellman Computing Shared Secrets 30
Diffie-Hellman Computing Public Values 25
Diffie-Hellman Generators of Groups 20
Diffie-Hellman Working with Fields 10
RSA Modulus Inutilis 50
RSA Salty 20
RSA Manyprime 40
RSA Square Eyes 35
RSA Inferius Prime 30
RSA Factoring 15
RSA Monoprime 30
RSA RSA Signatures 25
General Modular Inverting 25
General Modular Arithmetic 2 20
General Modular Arithmetic 1 20
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
Symmetric Ciphers Modes of Operation Starter 15
Symmetric Ciphers Bringing It All Together 50
Symmetric Ciphers Diffusion through Permutation 30
General Extended GCD 20
Symmetric Ciphers Confusion through Substitution 25
Symmetric Ciphers Round Keys 20
Symmetric Ciphers Structure of AES 15
General Greatest Common Divisor 15
General You either know, XOR you don't 30
General Favourite byte 20
Symmetric Ciphers Resisting Bruteforce 10
Symmetric Ciphers Keyed Permutations 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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