Junia

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Solved Challenges

Symmetric Ciphers Confusion through Substitution 25
Mathematics Adrien's Signs 80
ZKPs ZKP Introduction 5
RSA Factoring 15
RSA RSA Decryption 20
RSA Private Keys 20
RSA Public Keys 15
Mathematics Successive Powers 60
Symmetric Ciphers Bringing It All Together 50
Symmetric Ciphers Diffusion through Permutation 30
Symmetric Ciphers Round Keys 20
Symmetric Ciphers Structure of AES 15
General Transparency 50
General SSH Keys 35
General CERTainly not 30
General Privacy-Enhanced Mail? 25
Isogenies Image Point Arithmetic 30
Isogenies The j-invariant 20
Isogenies Introduction to Isogenies 10
Crypto on the Web Secure Protocols 5
Crypto on the Web JWT Sessions 10
Diffie-Hellman Computing Shared Secrets 30
Diffie-Hellman Computing Public Values 25
Diffie-Hellman Generators of Groups 20
Diffie-Hellman Working with Fields 10
Symmetric Ciphers Resisting Bruteforce 10
General Lemur XOR 40
General Encoding Challenge 40
Lattices Vectors 10
Crypto on the Web Token Appreciation 5
Hash Functions Jack's Birthday Confusion 30
Hash Functions Jack's Birthday Hash 20
Symmetric Ciphers Keyed Permutations 5
General Modular Inverting 25
General Modular Arithmetic 2 20
General Modular Arithmetic 1 20
General Extended GCD 20
General Greatest Common Divisor 15
Lattices Gaussian Reduction 50
RSA Euler's Totient 20
RSA Modular Exponentiation 10
General You either know, XOR you don't 30
Mathematics Chinese Remainder Theorem 40
Mathematics Modular Square Root 35
Mathematics Legendre Symbol 35
Mathematics Quadratic Residues 25
Introduction Network Attacks 5
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 Great Snakes 3
Introduction Finding Flags 2

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