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Solved Challenges

Symmetric Ciphers Round Keys 20
RSA Euler's Totient 20
RSA Public Keys 15
RSA Modular Exponentiation 10
Elliptic Curves Point Negation 10
Diffie-Hellman Generators of Groups 20
Diffie-Hellman Working with Fields 10
Elliptic Curves Background Reading 5
General Lemur XOR 40
General Extended GCD 20
General Modular Inverting 25
General Modular Arithmetic 2 20
General Modular Arithmetic 1 20
Misc Gotta Go Fast 40
Hash Functions Collider 50
Symmetric Ciphers Passwords as Keys 50
Symmetric Ciphers Structure of AES 15
Symmetric Ciphers Modes of Operation Starter 15
Misc Bruce Schneier's Password 100
Crypto on the Web JWT Secrets 25
Crypto on the Web No Way JOSE 20
Crypto on the Web JWT Sessions 10
Crypto on the Web Token Appreciation 5
Symmetric Ciphers Resisting Bruteforce 10
Symmetric Ciphers Keyed Permutations 5
General Transparency 50
General SSH Keys 35
General CERTainly not 30
General Privacy-Enhanced Mail? 25
General Greatest Common Divisor 15
General Encoding Challenge 40
General You either know, XOR you don't 30
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 Network Attacks 5
Introduction Great Snakes 3
Introduction Finding Flags 2

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