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Solved Challenges

Mathematics Prime and Prejudice 200
Lattices LWE Background 5
Isogenies Montgomery Curves 30
Hash Functions Merkle Trees 25
Elliptic Curves Exceptional Curves 100
Symmetric Ciphers ECB CBC WTF 55
Symmetric Ciphers Symmetry 50
ZKPs ZKP Introduction 5
Isogenies Where's the Supersingular Curve 25
Isogenies The j-invariant 20
Isogenies Introduction to Isogenies 10
Diffie-Hellman Script Kiddie 70
Elliptic Curves Smooth Criminal 60
Elliptic Curves Montgomery's Ladder 40
Elliptic Curves Efficient Exchange 50
Elliptic Curves Curves and Logs 40
Mathematics Successive Powers 60
RSA Signing Server 60
Elliptic Curves Scalar Multiplication 35
Elliptic Curves Point Addition 30
Elliptic Curves Point Negation 10
Elliptic Curves Background Reading 5
Symmetric Ciphers Passwords as Keys 50
Symmetric Ciphers Modes of Operation Starter 15
Diffie-Hellman The Matrix 75
Diffie-Hellman Static Client 100
Diffie-Hellman Additive 70
Diffie-Hellman Export-grade 100
Diffie-Hellman Parameter Injection 60
Diffie-Hellman Deriving Symmetric Keys 40
Diffie-Hellman Computing Shared Secrets 30
Diffie-Hellman Computing Public Values 25
Diffie-Hellman Generators of Groups 20
Diffie-Hellman Working with Fields 10
Symmetric Ciphers Bringing It All Together 50
Symmetric Ciphers Diffusion through Permutation 30
Mathematics Broken RSA 100
Hash Functions MD0 80
Mathematics Adrien's Signs 80
Lattices Gaussian Reduction 50
Crypto on the Web Saying Hello 20
Crypto on the Web TLS Handshake 15
Crypto on the Web Sharks on the Wire 10
Crypto on the Web Secure Protocols 5
Crypto on the Web JSON in JSON 40
Crypto on the Web JWT Secrets 25
Crypto on the Web No Way JOSE 20
Crypto on the Web JWT Sessions 10
Crypto on the Web Token Appreciation 5
Symmetric Ciphers Confusion through Substitution 25
Lattices What's a Lattice? 40
RSA Infinite Descent 50
Symmetric Ciphers Round Keys 20
Symmetric Ciphers Structure of AES 15
Symmetric Ciphers Resisting Bruteforce 10
Symmetric Ciphers Keyed Permutations 5
Lattices Gram Schmidt 30
Lattices Size and Basis 15
Lattices Vectors 10
Mathematics Chinese Remainder Theorem 40
Mathematics Modular Square Root 35
Mathematics Legendre Symbol 35
RSA Square Eyes 35
General You either know, XOR you don't 30
General Transparency 50
General SSH Keys 35
General CERTainly not 30
Mathematics Quadratic Residues 25
Misc No Leaks 100
Misc Gotta Go Fast 40
Hash Functions Jack's Birthday Hash 20
General Modular Inverting 25
General Modular Arithmetic 2 20
General Encoding Challenge 40
General Privacy-Enhanced Mail? 25
RSA Marin's Secrets 50
Hash Functions Collider 50
General Modular Arithmetic 1 20
General Extended GCD 20
General Greatest Common Divisor 15
General Lemur XOR 40
Introduction Network Attacks 5
Hash Functions Jack's Birthday Confusion 30
RSA Monoprime 30
RSA Manyprime 40
RSA Inferius Prime 30
RSA RSA Signatures 25
RSA Modulus Inutilis 50
RSA Salty 20
RSA Factoring 15
RSA RSA Decryption 20
RSA Private Keys 20
RSA Euler's Totient 20
RSA Public Keys 15
RSA Modular Exponentiation 10
General Favourite byte 20
General XOR Properties 15
General XOR Starter 10
General Bytes and Big Integers 10
General Base64 10
General Hex 5
General ASCII 5
Introduction Great Snakes 3
Introduction Finding Flags 2

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