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Solved Challenges

Block Ciphers Stream of Consciousness 80
Block Ciphers CTRIME 70
Block Ciphers Bean Counter 60
Block Ciphers Symmetry 50
Block Ciphers Lazy CBC 60
Block Ciphers Flipping Cookie 60
Elliptic Curves Efficient Exchange 50
Elliptic Curves Curves and Logs 40
Elliptic Curves Scalar Multiplication 35
Elliptic Curves Point Addition 30
RSA Everything is Big 70
RSA Endless Emails 150
Elliptic Curves Point Negation 10
Elliptic Curves Background Reading 5
Mathematics Broken RSA 100
Diffie-Hellman Export-grade 100
Diffie-Hellman Parameter Injection 60
Diffie-Hellman Diffie-Hellman Starter 5 40
Diffie-Hellman Diffie-Hellman Starter 4 30
Diffie-Hellman Diffie-Hellman Starter 3 20
Diffie-Hellman Diffie-Hellman Starter 2 20
Diffie-Hellman Diffie-Hellman Starter 1 10
RSA Crossed Wires 100
RSA Modulus Inutilis 50
RSA Salty 20
Mathematics Adrien's Signs 60
General CERTainly not 30
General Privacy-Enhanced Mail? 25
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
Block Ciphers ECB CBC WTF 55
RSA RSA Starter 3 20
RSA RSA Starter 2 15
RSA RSA Starter 1 10
Block Ciphers ECB Oracle 60
Block Ciphers Passwords as Keys 50
Block Ciphers Bringing It All Together 50
Block Ciphers Diffusion through Permutation 30
Block Ciphers Confusion through Substitution 25
Block Ciphers Round Keys 20
Block Ciphers Structure of AES 15
Block Ciphers Block Cipher Mode Starter 15
Block Ciphers Resisting Bruteforce 10
Block Ciphers Keyed Permutations 5
Mathematics Successive Powers 60
Mathematics Gaussian Reduction 50
Mathematics What's a Lattice? 40
Mathematics Gram Schmidt 30
Mathematics Size and Basis 15
Mathematics Vectors 10
Mathematics Modular Square Root 35
Mathematics Chinese Remainder Theorem 40
Mathematics Legendre Symbol 35
Mathematics Quadratic Residues 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 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 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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