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Submitted Solutions

Non-Interactive 1
Special Soundness 2
Scalar Multiplication 0
Point Addition 0
Factoring 3

Solved Challenges

Lattices Backpack Cryptography 120
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
Elliptic Curves Smooth Criminal 60
Elliptic Curves Efficient Exchange 50
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
Symmetric Ciphers Forbidden Fruit 150
Symmetric Ciphers Oracular Spectacular 150
Symmetric Ciphers Paper Plane 120
Symmetric Ciphers The Good, The Pad, The Ugly 100
Symmetric Ciphers Pad Thai 80
Symmetric Ciphers Oh SNAP 120
Symmetric Ciphers Dancing Queen 120
RSA Infinite Descent 50
Symmetric Ciphers Logon Zero 80
Symmetric Ciphers Stream of Consciousness 80
Symmetric Ciphers CTRIME 70
Symmetric Ciphers Triple DES 60
Symmetric Ciphers Lazy CBC 60
Hash Functions WOTS Up 2 90
Hash Functions WOTS Up 75
Hash Functions MD0 80
Mathematics Unencryptable 125
Hash Functions Twin Keys 100
Mathematics Broken RSA 100
Mathematics Successive Powers 60
Hash Functions PriMeD5 100
Hash Functions Hash Stuffing 50
Hash Functions Collider 50
Hash Functions Jack's Birthday Confusion 30
Hash Functions Jack's Birthday Hash 20
Misc Lo-Hi Card Game 120
RSA Crossed Wires 100
RSA Everything is Still Big 100
RSA Everything is Big 70
RSA Square Eyes 35
RSA Inferius Prime 30
ZKPs Mister Saplin's Preview 80
Hash Functions Merkle Trees 25
ZKPs Pairing-Based Cryptography 50
Misc No Leaks 100
Misc Gotta Go Fast 40
CTF Archive Hamiltonicity (CryptoHack) 0
ZKPs Hamiltonicity 1 100
ZKPs OR Proof 75
CTF Archive OR Proof (CryptoHack) 0
ZKPs Too Honest 50
ZKPs Non-Interactive 35
ZKPs Honest Verifier Zero Knowledge 30
ZKPs Special Soundness 25
ZKPs Proofs of Knowledge 20
ZKPs ZKP Introduction 5
Diffie-Hellman Generators of Groups 20
Diffie-Hellman Working with Fields 10
Symmetric Ciphers Bean Counter 60
Symmetric Ciphers Symmetry 50
Mathematics Modular Binomials 80
Elliptic Curves Curves and Logs 40
Elliptic Curves Scalar Multiplication 35
Elliptic Curves Point Addition 30
Lattices Find the Lattice 100
RSA Modulus Inutilis 50
Elliptic Curves Point Negation 10
Elliptic Curves Background Reading 5
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 Flipping Cookie 60
Symmetric Ciphers ECB CBC WTF 55
Crypto on the Web Secure Protocols 5
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 Adrien's Signs 80
Lattices Gaussian Reduction 50
Lattices What's a Lattice? 40
Lattices Gram Schmidt 30
Lattices Size and Basis 15
Lattices Vectors 10
Mathematics Chinese Remainder Theorem 40
General Transparency 50
General SSH Keys 35
General CERTainly not 30
General Privacy-Enhanced Mail? 25
General Lemur XOR 40
General Encoding Challenge 40
Crypto on the Web JSON in JSON 40
Crypto on the Web RSA or HMAC? 35
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
Introduction Network Attacks 5
Mathematics Modular Square Root 35
Mathematics Legendre Symbol 35
Mathematics Quadratic Residues 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 You either know, XOR you don't 30
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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