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Solved Challenges

Symmetric Ciphers Modes of Operation Starter 15
Symmetric Ciphers Structure of AES 15
Symmetric Ciphers Resisting Bruteforce 10
Symmetric Ciphers Keyed Permutations 5
General SSH Keys 35
General Transparency 50
Lattices Size and Basis 15
RSA Factoring 15
RSA Modulus Inutilis 50
RSA Salty 20
General CERTainly not 30
General Privacy-Enhanced Mail? 25
General Modular Inverting 25
General Modular Arithmetic 2 20
General Modular Arithmetic 1 20
General Extended GCD 20
General You either know, XOR you don't 30
RSA RSA Signatures 25
RSA RSA Decryption 20
RSA Private Keys 20
RSA Euler's Totient 20
RSA Public Keys 15
RSA Modular Exponentiation 10
General Greatest Common Divisor 15
General Encoding Challenge 40
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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