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Solved Challenges

Crypto on the Web Token Appreciation 5
RSA Monoprime 30
Symmetric Ciphers ECB Oracle 60
RSA Inferius Prime 30
RSA Factoring 15
RSA RSA Starter 6 25
RSA RSA Starter 5 20
RSA RSA Starter 4 20
RSA RSA Starter 3 20
RSA RSA Starter 2 15
Symmetric Ciphers Passwords as Keys 50
Mathematics Size and Basis 15
Mathematics Vectors 10
Symmetric Ciphers Round Keys 20
Symmetric Ciphers Structure of AES 15
Symmetric Ciphers Resisting Bruteforce 10
Symmetric Ciphers Keyed Permutations 5
Symmetric Ciphers Modes of Operation Starter 15
Diffie-Hellman Diffie-Hellman Starter 1 10
Mathematics Quadratic Residues 25
General CERTainly not 30
Mathematics Chinese Remainder Theorem 40
RSA RSA Starter 1 10
General Privacy-Enhanced Mail? 25
General XOR Properties 15
General Modular Arithmetic 2 20
General Lemur XOR 40
General You either know, XOR you don't 30
General Modular Inverting 25
General Modular Arithmetic 1 20
General Encoding Challenge 40
General Extended GCD 20
General Greatest Common Divisor 15
General Favourite byte 20
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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