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Solved Challenges

Symmetric Ciphers Passwords as Keys 50
RSA Everything is Still Big 100
RSA Endless Emails 150
Mathematics Broken RSA 100
Mathematics Modular Binomials 80
Mathematics Adrien's Signs 80
Mathematics Successive Powers 60
Hash Functions Jack's Birthday Confusion 30
Hash Functions Jack's Birthday Hash 20
General Transparency 50
Mathematics Modular Square Root 35
Mathematics Legendre Symbol 35
Symmetric Ciphers Structure of AES 15
RSA Modulus Inutilis 50
Symmetric Ciphers Modes of Operation Starter 15
Symmetric Ciphers Resisting Bruteforce 10
Symmetric Ciphers Keyed Permutations 5
Mathematics Size and Basis 15
Mathematics Vectors 10
RSA Crossed Wires 100
RSA Marin's Secrets 50
RSA Infinite Descent 50
RSA Everything is Big 70
RSA Salty 20
RSA Manyprime 40
RSA Square Eyes 35
RSA Monoprime 30
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
RSA RSA Starter 1 10
Mathematics Quadratic Residues 25
Mathematics Chinese Remainder Theorem 40
General CERTainly not 30
General Lemur XOR 40
General You either know, XOR you don't 30
General Favourite byte 20
General XOR Properties 15
General XOR Starter 10
General Privacy-Enhanced Mail? 25
General Modular Arithmetic 2 20
General Modular Inverting 25
General Modular Arithmetic 1 20
General Extended GCD 20
General Greatest Common Divisor 15
General Encoding Challenge 40
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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