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Solved Challenges

Crypto on the Web Token Appreciation 5
General SSH Keys 35
Diffie-Hellman Computing Shared Secrets 30
Diffie-Hellman Computing Public Values 25
Hash Functions Jack's Birthday Confusion 30
Hash Functions Jack's Birthday Hash 20
Lattices What's a Lattice? 40
Lattices Size and Basis 15
Lattices Vectors 10
Elliptic Curves Curves and Logs 40
Elliptic Curves Scalar Multiplication 35
Elliptic Curves Point Addition 30
Elliptic Curves Point Negation 10
Elliptic Curves Background Reading 5
Crypto on the Web JWT Sessions 10
Diffie-Hellman Generators of Groups 20
Diffie-Hellman Working with Fields 10
RSA RSA Decryption 20
RSA Private Keys 20
RSA Euler's Totient 20
RSA Public Keys 15
RSA Modular Exponentiation 10
Mathematics Modular Binomials 80
ZKPs ZKP Introduction 5
Isogenies Image Point Arithmetic 30
Isogenies The j-invariant 20
Symmetric Ciphers Resisting Bruteforce 10
Symmetric Ciphers Keyed Permutations 5
General Lemur XOR 40
General Encoding Challenge 40
Introduction Network Attacks 5
Mathematics Legendre Symbol 35
Mathematics Modular Square Root 35
Mathematics Chinese Remainder Theorem 40
Mathematics Quadratic Residues 25
General Modular Inverting 25
General Modular Arithmetic 2 20
General Modular Arithmetic 1 20
General Extended GCD 20
General Greatest Common Divisor 15
General Bytes and Big Integers 10
General Base64 10
General You either know, XOR you don't 30
General Favourite byte 20
General XOR Properties 15
General XOR Starter 10
General Hex 5
General ASCII 5
Introduction Great Snakes 3
Introduction Finding Flags 2

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