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Solved Challenges

Hash Functions Jack's Birthday Confusion 30
Hash Functions Jack's Birthday Hash 20
ZKPs ZKP Introduction 5
Mathematics Chinese Remainder Theorem 40
Mathematics Modular Square Root 35
General Encoding Challenge 40
Introduction Network Attacks 5
Diffie-Hellman Computing Shared Secrets 30
Diffie-Hellman Generators of Groups 20
Symmetric Ciphers Lazy CBC 60
Symmetric Ciphers Bringing It All Together 50
RSA Monoprime 30
RSA Inferius Prime 30
RSA Factoring 15
Symmetric Ciphers Diffusion through Permutation 30
Symmetric Ciphers Modes of Operation Starter 15
Diffie-Hellman Computing Public Values 25
Diffie-Hellman Working with Fields 10
Lattices Vectors 10
Symmetric Ciphers Confusion through Substitution 25
Symmetric Ciphers Round Keys 20
Symmetric Ciphers Structure of AES 15
Symmetric Ciphers Resisting Bruteforce 10
General Privacy-Enhanced Mail? 25
RSA RSA Decryption 20
RSA Private Keys 20
Lattices Size and Basis 15
Mathematics Legendre Symbol 35
Mathematics Quadratic Residues 25
RSA Euler's Totient 20
RSA Public Keys 15
RSA Modular Exponentiation 10
Symmetric Ciphers Keyed Permutations 5
General You either know, XOR you don't 30
General Modular Inverting 25
General Modular Arithmetic 2 20
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 Modular Arithmetic 1 20
General Extended GCD 20
General Greatest Common Divisor 15
General ASCII 5
Introduction Great Snakes 3
Introduction Finding Flags 2

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