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Solved Challenges

Symmetric Ciphers Triple DES 60
Symmetric Ciphers Lazy CBC 60
Elliptic Curves Double and Broken 50
Lattices LWE Low Bits Message 20
Lattices LWE High Bits Message 15
Lattices LWE Intro 10
Mathematics Cofactor Cofantasy 150
Lattices From Private to Public Key LWE 25
Lattices Find the Lattice 100
Lattices What's a Lattice? 40
Lattices Gaussian Reduction 50
Lattices Gram Schmidt 30
Lattices Size and Basis 15
Lattices Vectors 10
ZKPs Fischlin Transform 180
CTF Archive Fischlin's Transformation (CryptoHack) 0
Lattices LWE Background 5
Mathematics Real Eisenstein 150
Mathematics Roll your Own 125
Mathematics Unencryptable 125
ZKPs Let's Prove It 120
ZKPs Pairing-Based Cryptography 50
Mathematics Ellipse Curve Cryptography 125
Mathematics No Way Back Home 100
Mathematics Broken RSA 100
Mathematics Prime and Prejudice 200
Elliptic Curves Moving Problems 150
Elliptic Curves ProSign 3 100
Elliptic Curves Smooth Criminal 60
Elliptic Curves Curveball 100
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
ZKPs Hamiltonicity 1 100
CTF Archive Hamiltonicity (CryptoHack) 0
Diffie-Hellman The Matrix Reloaded 100
ZKPs Mister Saplin's Preview 80
ZKPs Mister Saplins The Prover 125
ZKPs Couples 100
Diffie-Hellman The Matrix 75
Diffie-Hellman Script Kiddie 70
Diffie-Hellman Static Client 2 120
Diffie-Hellman Static Client 100
Diffie-Hellman Additive 70
ZKPs OR Proof 75
CTF Archive OR Proof (CryptoHack) 0
ZKPs ZKP Introduction 5
ZKPs Too Honest 50
ZKPs Non-Interactive 35
ZKPs Honest Verifier Zero Knowledge 30
ZKPs Special Soundness 25
ZKPs Proofs of Knowledge 20
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
RSA Modulus Inutilis 50
RSA Salty 20
RSA Manyprime 40
RSA Monoprime 30
RSA Factoring 15
RSA RSA Signatures 25
RSA RSA Decryption 20
RSA Private Keys 20
RSA Euler's Totient 20
RSA Public Keys 15
RSA Modular Exponentiation 10
Symmetric Ciphers Bean Counter 60
Symmetric Ciphers Symmetry 50
Symmetric Ciphers Flipping Cookie 60
Symmetric Ciphers ECB CBC WTF 55
Symmetric Ciphers ECB Oracle 60
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
Mathematics Modular Binomials 80
Mathematics Adrien's Signs 80
Mathematics Successive Powers 60
Mathematics Chinese Remainder Theorem 40
Mathematics Modular Square Root 35
Mathematics Legendre Symbol 35
Mathematics Quadratic Residues 25
General Transparency 50
General SSH Keys 35
General CERTainly not 30
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 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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