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Solved Challenges

Lattices Backpack Cryptography 120
Lattices LWE Intro 10
Lattices LWE Background 5
Misc Bruce Schneier's Password 100
ZKPs Proofs of Knowledge 20
Hash Functions WOTS Up 2 90
Hash Functions Merkle Trees 25
Hash Functions WOTS Up 75
Hash Functions Twin Keys 100
Isogenies SIDH Key Exchange 80
Isogenies Special Isogenies 30
Isogenies DLOG on the Surface 40
ZKPs ZKP Introduction 5
RSA Vote for Pedro 150
Elliptic Curves A Twisted Mind 80
Lattices Gram Schmidt 30
Lattices Gaussian Reduction 50
Lattices What's a Lattice? 40
Lattices Size and Basis 15
Lattices Vectors 10
RSA Blinding Light 120
RSA Infinite Descent 50
RSA Marin's Secrets 50
RSA Fast Primes 75
RSA Ron was Wrong, Whit is Right 90
RSA Let's Decrypt 80
RSA Signing Server 60
RSA Endless Emails 150
General Transparency 50
General SSH Keys 35
General CERTainly not 30
General Lemur XOR 40
General Privacy-Enhanced Mail? 25
Mathematics Cofactor Cofantasy 150
Mathematics Real Eisenstein 150
Isogenies Composite Isogenies 60
Isogenies Three Isogenies 35
Isogenies Two Isogenies 30
General You either know, XOR you don't 30
Mathematics Roll your Own 125
Hash Functions PriMeD5 100
Isogenies Montgomery Curves 30
Isogenies Image Point Arithmetic 30
Isogenies Where's the Supersingular Curve 25
Isogenies The j-invariant 20
Isogenies Introduction to Isogenies 10
Symmetric Ciphers Passwords as Keys 50
Symmetric Ciphers Modes of Operation Starter 15
Symmetric Ciphers Structure of AES 15
Symmetric Ciphers Resisting Bruteforce 10
Symmetric Ciphers Keyed Permutations 5
Mathematics Unencryptable 125
Mathematics Ellipse Curve Cryptography 125
Mathematics No Way Back Home 100
Mathematics Chinese Remainder Theorem 40
Mathematics Modular Square Root 35
Mathematics Legendre Symbol 35
Mathematics Adrien's Signs 80
Mathematics Successive Powers 60
Mathematics Modular Binomials 80
Mathematics Broken RSA 100
RSA Everything is Still Big 100
RSA Crossed Wires 100
RSA Everything is Big 70
RSA Modulus Inutilis 50
RSA Salty 20
RSA Manyprime 40
RSA Square Eyes 35
RSA Monoprime 30
RSA Inferius Prime 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
Elliptic Curves Double and Broken 50
Elliptic Curves Montgomery's Ladder 40
Elliptic Curves Digestive 60
Hash Functions Collider 50
Hash Functions Jack's Birthday Confusion 30
Hash Functions Jack's Birthday Hash 20
Mathematics Quadratic Residues 25
Elliptic Curves Moving Problems 150
Elliptic Curves Elliptic Nodes 150
Elliptic Curves Micro Transmissions 120
Elliptic Curves Exceptional Curves 100
Elliptic Curves Smooth Criminal 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
General Favourite byte 20
General XOR Properties 15
General XOR Starter 10
General Encoding Challenge 40
Diffie-Hellman The Matrix Revolutions 125
Diffie-Hellman Static Client 100
Diffie-Hellman Static Client 2 120
General Modular Inverting 25
General Modular Arithmetic 2 20
General Modular Arithmetic 1 20
General Extended GCD 20
General Greatest Common Divisor 15
Diffie-Hellman The Matrix Reloaded 100
Diffie-Hellman Export-grade 100
Diffie-Hellman Additive 70
Diffie-Hellman Script Kiddie 70
Diffie-Hellman Generators of Groups 20
Diffie-Hellman Working with Fields 10
Diffie-Hellman Computing Shared Secrets 30
Diffie-Hellman The Matrix 75
Diffie-Hellman Parameter Injection 60
Diffie-Hellman Computing Public Values 25
Diffie-Hellman Deriving Symmetric Keys 40
Introduction Network Attacks 5
Elliptic Curves Background Reading 5
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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