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Submitted Solutions

Edwards Goes Degenerate 0
Better than Linear 0

Solved Challenges

Isogenies CSIDH Key Exchange 90
Lattices Find the Lattice 100
Elliptic Curves Edwards Goes Degenerate 100
Elliptic Curves An Evil Twisted Mind 175
RSA Endless Emails 150
RSA Everything is Still Big 100
RSA Infinite Descent 50
Lattices Noise Free 40
Crypto on the Web Decrypting TLS 1.3 35
Crypto on the Web Decrypting TLS 1.2 30
Crypto on the Web TLS Handshake 15
Crypto on the Web Sharks on the Wire 10
Lattices From Private to Public Key LWE 25
Lattices LWE Low Bits Message 20
Diffie-Hellman The Matrix 75
Mathematics Prime and Prejudice 200
RSA Marin's Secrets 50
Elliptic Curves An Exceptional Twisted Mind 125
ZKPs Pairing-Based Cryptography 50
RSA Signing Server 60
Elliptic Curves Double and Broken 50
Mathematics Cofactor Cofantasy 150
Elliptic Curves A Twisted Mind 80
Misc Gotta Go Fast 40
RSA Crossed Wires 100
RSA Everything is Big 70
Mathematics Unencryptable 125
Mathematics Ellipse Curve Cryptography 125
Mathematics No Way Back Home 100
RSA Square Eyes 35
Mathematics Broken RSA 100
Symmetric Ciphers Symmetry 50
General Encoding Challenge 40
Hash Functions Collider 50
General Transparency 50
General SSH Keys 35
Crypto on the Web Saying Hello 20
Crypto on the Web Secure Protocols 5
Crypto on the Web JWT Secrets 25
Crypto on the Web No Way JOSE 20
Crypto on the Web JWT Sessions 10
General CERTainly not 30
Symmetric Ciphers Bringing It All Together 50
Symmetric Ciphers Diffusion through Permutation 30
Symmetric Ciphers Confusion through Substitution 25
Elliptic Curves ProSign 3 100
Elliptic Curves Curveball 100
Misc No Leaks 100
RSA Modulus Inutilis 50
Diffie-Hellman Additive 70
Diffie-Hellman Export-grade 100
Diffie-Hellman Parameter Injection 60
Symmetric Ciphers Passwords as Keys 50
Symmetric Ciphers Modes of Operation Starter 15
Symmetric Ciphers Round Keys 20
Symmetric Ciphers Structure of AES 15
Isogenies Abelian SIDH 90
Isogenies Better than Linear 85
Isogenies Twisted CSIDH Isogenies 70
Isogenies Secret Exponents 60
Isogenies Prime Power Isogenies 50
Isogenies SIDH Key Exchange 80
Isogenies Composite Isogenies 60
Elliptic Curves Micro Transmissions 120
Introduction Network Attacks 5
Lattices LWE High Bits Message 15
Lattices LWE Intro 10
Lattices Gaussian Reduction 50
Lattices What's a Lattice? 40
General Privacy-Enhanced Mail? 25
Elliptic Curves Exceptional Curves 100
Elliptic Curves Moving Problems 150
Crypto on the Web Token Appreciation 5
Lattices LWE Background 5
Lattices Gram Schmidt 30
Lattices Size and Basis 15
Mathematics Adrien's Signs 80
Mathematics Modular Binomials 80
ZKPs ZKP Introduction 5
Lattices Vectors 10
Elliptic Curves Montgomery's Ladder 40
Hash Functions Jack's Birthday Confusion 30
Hash Functions Jack's Birthday Hash 20
General Lemur XOR 40
RSA Salty 20
RSA Manyprime 40
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
Isogenies Special Isogenies 30
Isogenies Three Isogenies 35
Isogenies Two Isogenies 30
Mathematics Modular Square Root 35
Mathematics Legendre Symbol 35
Isogenies DLOG on the Surface 40
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
Isogenies Montgomery Curves 30
Isogenies Image Point Arithmetic 30
Isogenies The j-invariant 20
Isogenies Introduction to Isogenies 10
General You either know, XOR you don't 30
General Favourite byte 20
General Modular Inverting 25
General Modular Arithmetic 2 20
General Modular Arithmetic 1 20
General Extended GCD 20
General Greatest Common Divisor 15
Symmetric Ciphers Resisting Bruteforce 10
General XOR Properties 15
Symmetric Ciphers Keyed Permutations 5
Mathematics Successive Powers 60
Mathematics Chinese Remainder Theorem 40
Mathematics Quadratic Residues 25
Elliptic Curves Elliptic Nodes 150
Isogenies Where's the Supersingular Curve 25
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
Elliptic Curves Background Reading 5
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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