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Solved Challenges

Misc Lo-Hi Card Game 120
Misc No Leaks 100
Misc Gotta Go Fast 40
RSA Marin's Secrets 50
RSA Infinite Descent 50
RSA Vote for Pedro 150
RSA Blinding Light 120
RSA Let's Decrypt 80
RSA Signing Server 60
Elliptic Curves Curveball 100
General Transparency 50
General SSH Keys 35
General CERTainly not 30
General Privacy-Enhanced Mail? 25
Hash Functions PriMeD5 100
Symmetric Ciphers CTRIME 70
Symmetric Ciphers Bean Counter 60
Symmetric Ciphers Symmetry 50
Mathematics Roll your Own 125
Mathematics Broken RSA 100
Mathematics Modular Binomials 80
Mathematics Adrien's Signs 80
Mathematics Successive Powers 60
Mathematics Gaussian Reduction 50
Mathematics What's a Lattice? 40
Mathematics Gram Schmidt 30
Hash Functions Hash Stuffing 50
Symmetric Ciphers Flipping Cookie 60
Symmetric Ciphers Lazy CBC 60
Elliptic Curves Efficient Exchange 50
Elliptic Curves Curves and Logs 40
Elliptic Curves Scalar Multiplication 35
Elliptic Curves Point Addition 30
Elliptic Curves Point Negation 10
Elliptic Curves Background Reading 5
Hash Functions Collider 50
RSA Crossed Wires 100
RSA Everything is Big 70
RSA Modulus Inutilis 50
RSA Manyprime 40
Symmetric Ciphers Triple DES 60
Symmetric Ciphers ECB Oracle 60
Symmetric Ciphers ECB CBC WTF 55
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
Symmetric Ciphers Resisting Bruteforce 10
Symmetric Ciphers Keyed Permutations 5
Diffie-Hellman Script Kiddie 70
Diffie-Hellman Static Client 100
Diffie-Hellman Export-grade 100
Diffie-Hellman Additive 70
Diffie-Hellman Parameter Injection 60
Crypto on the Web Token Appreciation 5
Mathematics Modular Square Root 35
Mathematics Legendre Symbol 35
Hash Functions Jack's Birthday Confusion 30
Hash Functions Jack's Birthday Hash 20
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
Mathematics Size and Basis 15
Mathematics Vectors 10
Mathematics Chinese Remainder Theorem 40
Mathematics Quadratic Residues 25
General Encoding Challenge 40
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
RSA Salty 20
RSA Inferius Prime 30
RSA Square Eyes 35
RSA Monoprime 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
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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