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Symmetry 0
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Solved Challenges

Symmetric Ciphers Stream of Consciousness 80
Symmetric Ciphers CTRIME 70
Symmetric Ciphers Bean Counter 60
Symmetric Ciphers ECB CBC WTF 55
Symmetric Ciphers ECB Oracle 60
Symmetric Ciphers Symmetry 50
Symmetric Ciphers Flipping Cookie 60
Mathematics Successive Powers 60
RSA Fast Primes 75
RSA Marin's Secrets 50
RSA Infinite Descent 50
RSA Manyprime 40
RSA Inferius Prime 30
RSA Monoprime 30
RSA Square Eyes 35
RSA Factoring 15
Symmetric Ciphers Passwords as Keys 50
Symmetric Ciphers Modes of Operation Starter 15
Symmetric Ciphers Bringing It All Together 50
Symmetric Ciphers Diffusion through Permutation 30
Symmetric Ciphers Confusion through Substitution 25
Symmetric Ciphers Round Keys 20
Symmetric Ciphers Structure of AES 15
Mathematics Adrien's Signs 80
Mathematics Chinese Remainder Theorem 40
Mathematics Modular Square Root 35
Mathematics Legendre Symbol 35
Hash Functions Jack's Birthday Hash 20
RSA RSA Decryption 20
RSA Private Keys 20
Symmetric Ciphers Resisting Bruteforce 10
Symmetric Ciphers Keyed Permutations 5
Diffie-Hellman Generators of Groups 20
Diffie-Hellman Working with Fields 10
Mathematics Quadratic Residues 25
RSA Euler's Totient 20
RSA Public Keys 15
RSA Modular Exponentiation 10
General Privacy-Enhanced Mail? 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 You either know, XOR you don't 30
General Favourite byte 20
General XOR Properties 15
General XOR Starter 10
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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