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Solved Challenges

Hash Functions PriMeD5 100
Hash Functions Hash Stuffing 50
Mathematics Prime and Prejudice 200
Mathematics Cofactor Cofantasy 150
Mathematics Unencryptable 125
Mathematics Roll your Own 125
Mathematics Ellipse Curve Cryptography 125
Mathematics No Way Back Home 100
Elliptic Curves A Twisted Mind 80
Mathematics Modular Binomials 80
Hash Functions Collider 50
Hash Functions Jack's Birthday Confusion 30
Hash Functions Jack's Birthday Hash 20
Elliptic Curves Double and Broken 50
Mathematics Adrien's Signs 80
Elliptic Curves No Random, No Bias 120
CTF Archive Twist and shout (ECSC 2023 (Norway)) 0
Mathematics Chinese Remainder Theorem 40
Elliptic Curves ProSign 3 100
Elliptic Curves Edwards Goes Degenerate 100
Elliptic Curves Curveball 100
Elliptic Curves Digestive 60
Elliptic Curves Moving Problems 150
Elliptic Curves Elliptic Nodes 150
Elliptic Curves Micro Transmissions 120
Mathematics Successive Powers 60
Elliptic Curves Exceptional Curves 100
Elliptic Curves Smooth Criminal 60
Mathematics Modular Square Root 35
Diffie-Hellman The Matrix Revolutions 125
Diffie-Hellman The Matrix Reloaded 100
Diffie-Hellman The Matrix 75
Lattices Too Many Errors 100
Lattices Noise Cheap 90
Lattices Missing Modulus 80
Lattices Nativity 60
Lattices Bounded Noise 50
Mathematics Broken RSA 100
Mathematics Real Eisenstein 150
Lattices Noise Free 40
Lattices From Private to Public Key LWE 25
Lattices LWE Low Bits Message 20
Lattices LWE High Bits Message 15
Lattices LWE Intro 10
Lattices LWE Background 5
Lattices Backpack Cryptography 120
Lattices Find the Lattice 100
Lattices Gaussian Reduction 50
Lattices What's a Lattice? 40
Lattices Gram Schmidt 30
Lattices Size and Basis 15
Lattices Vectors 10
Mathematics Legendre Symbol 35
Mathematics Quadratic Residues 25
Elliptic Curves Montgomery's Ladder 40
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
Diffie-Hellman Script Kiddie 70
Diffie-Hellman Static Client 2 120
Diffie-Hellman Static Client 100
Diffie-Hellman Export-grade 100
Diffie-Hellman Parameter Injection 60
Diffie-Hellman Additive 70
Diffie-Hellman Deriving Symmetric Keys 40
Diffie-Hellman Computing Shared Secrets 30
General SSH Keys 35
General CERTainly not 30
General Privacy-Enhanced Mail? 25
General Modular Inverting 25
General Modular Arithmetic 2 20
General Transparency 50
General Modular Arithmetic 1 20
General Extended GCD 20
Diffie-Hellman Computing Public Values 25
Diffie-Hellman Generators of Groups 20
Diffie-Hellman Working with Fields 10
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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