vagzygo

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Solved Challenges

General Privacy-Enhanced Mail? 25
Isogenies The j-invariant 20
RSA Monoprime 30
Crypto on the Web No Way JOSE 20
ZKPs ZKP Introduction 5
Hash Functions Jack's Birthday Confusion 30
Crypto on the Web JWT Sessions 10
Lattices Gaussian Reduction 50
Lattices Size and Basis 15
Lattices Vectors 10
Isogenies Introduction to Isogenies 10
Elliptic Curves Background Reading 5
General Lemur XOR 40
Diffie-Hellman Deriving Symmetric Keys 40
Diffie-Hellman Computing Shared Secrets 30
Diffie-Hellman Computing Public Values 25
Diffie-Hellman Working with Fields 10
Mathematics Legendre Symbol 35
Symmetric Ciphers ECB CBC WTF 55
Symmetric Ciphers Passwords as Keys 50
Symmetric Ciphers Modes of Operation Starter 15
Symmetric Ciphers Diffusion through Permutation 30
RSA Inferius Prime 30
RSA RSA Signatures 25
Mathematics Quadratic Residues 25
General Modular Inverting 25
General Modular Arithmetic 2 20
General Modular Arithmetic 1 20
RSA Factoring 15
RSA RSA Decryption 20
RSA Private Keys 20
RSA Euler's Totient 20
RSA Public Keys 15
RSA Modular Exponentiation 10
General Extended GCD 20
Symmetric Ciphers Confusion through Substitution 25
Hash Functions Jack's Birthday Hash 20
Symmetric Ciphers Round Keys 20
Symmetric Ciphers Structure of AES 15
Symmetric Ciphers Resisting Bruteforce 10
Symmetric Ciphers Keyed Permutations 5
General Greatest Common Divisor 15
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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