DayDun

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Solved Challenges

Crypto on the Web Authenticated Handshake 40
Crypto on the Web Decrypting TLS 1.3 35
Crypto on the Web Decrypting TLS 1.2 30
Diffie-Hellman The Matrix 75
Symmetric Ciphers Oracular Spectacular 150
Symmetric Ciphers The Good, The Pad, The Ugly 100
Symmetric Ciphers Pad Thai 80
Symmetric Ciphers Dancing Queen 120
Lattices From Private to Public Key LWE 25
Lattices LWE Low Bits Message 20
Lattices LWE High Bits Message 15
Lattices LWE Background 5
Mathematics Cofactor Cofantasy 150
Lattices Backpack Cryptography 120
Lattices Find the Lattice 100
Mathematics Real Eisenstein 150
Mathematics No Way Back Home 100
ZKPs Let's Prove It Again 175
ZKPs Mister Saplins The Prover 125
ZKPs Let's Prove It 120
ZKPs Couples 100
ZKPs Mister Saplin's Preview 80
ZKPs Pairing-Based Cryptography 50
ZKPs Ticket Maestro 200
CTF Archive Ticket Maestro (CryptoHack) 0
ZKPs Fischlin Transform 180
CTF Archive Fischlin's Transformation (CryptoHack) 0
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
ZKPs Hamiltonicity 2 175
CTF Archive Hamiltonicity 2 (CryptoHack) 0
ZKPs Hamiltonicity 1 100
CTF Archive Hamiltonicity (CryptoHack) 0
Mathematics Prime and Prejudice 200
Misc L-Win 120
Crypto on the Web Saying Hello 20
Crypto on the Web TLS Handshake 15
Crypto on the Web Sharks on the Wire 10
Crypto on the Web Secure Protocols 5
RSA Null or Never 100
RSA Blinding Light 120
RSA Signing Server 60
Mathematics Unencryptable 125
Mathematics Modular Binomials 80
Symmetric Ciphers Triple DES 60
Lattices Too Many Errors 100
Elliptic Curves Smooth Criminal 60
Misc Lo-Hi Card Game 120
Misc Armory 100
Hash Functions PriMeD5 100
Hash Functions Hash Stuffing 50
Misc Bruce Schneier's Password 100
Hash Functions No Difference 175
Hash Functions Mixed Up 120
Hash Functions MD0 80
Lattices Gaussian Reduction 50
Lattices What's a Lattice? 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
Crypto on the Web RSA or HMAC? Part 2 100
Diffie-Hellman Script Kiddie 70
Diffie-Hellman Static Client 2 120
Diffie-Hellman Additive 70
Diffie-Hellman Static Client 100
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
Lattices Gram Schmidt 30
Mathematics Broken RSA 100
Hash Functions Jack's Birthday Confusion 30
RSA Marin's Secrets 50
RSA Infinite Descent 50
Symmetric Ciphers Logon Zero 80
Lattices Size and Basis 15
Lattices Vectors 10
Mathematics Successive Powers 60
Hash Functions Jack's Birthday Hash 20
Mathematics Chinese Remainder Theorem 40
Mathematics Modular Square Root 35
RSA Everything is Big 70
Symmetric Ciphers Paper Plane 120
Symmetric Ciphers Stream of Consciousness 80
Symmetric Ciphers CTRIME 70
Symmetric Ciphers Bean Counter 60
Symmetric Ciphers Bringing It All Together 50
Symmetric Ciphers Symmetry 50
Symmetric Ciphers Lazy CBC 60
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
Hash Functions Collider 50
Mathematics Adrien's Signs 80
General SSH Keys 35
Symmetric Ciphers Diffusion through Permutation 30
Symmetric Ciphers Confusion through Substitution 25
RSA Crossed Wires 100
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
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
Misc No Leaks 100
Misc Gotta Go Fast 40
Symmetric Ciphers Round Keys 20
Symmetric Ciphers Structure of AES 15
Symmetric Ciphers Resisting Bruteforce 10
Symmetric Ciphers Keyed Permutations 5
Mathematics Legendre Symbol 35
Mathematics Quadratic Residues 25
General Transparency 50
General CERTainly not 30
General Privacy-Enhanced Mail? 25
General Encoding Challenge 40
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 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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