Tonghedocon

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Submitted Solutions

Bounded Noise 0
Signing Server 0

Solved Challenges

Elliptic Curves An Exceptional Twisted Mind 125
Elliptic Curves A Twisted Mind 80
ZKPs Hamiltonicity 2 175
Isogenies Prime Power Isogenies 50
Isogenies Breaking SIDH 250
Hash Functions Invariant 250
Symmetric Ciphers Beatboxer 150
Symmetric Ciphers Oracular Spectacular 150
Crypto on the Web JWT Secrets 25
Crypto on the Web No Way JOSE 20
Crypto on the Web JWT Sessions 10
Isogenies SIDH Key Exchange 80
Isogenies Composite Isogenies 60
Isogenies Three Isogenies 35
Isogenies Two Isogenies 30
Isogenies DLOG on the Surface 40
Isogenies Montgomery Curves 30
Isogenies Image Point Arithmetic 30
Isogenies Where's the Supersingular Curve 25
Hash Functions Mixed Up 120
Hash Functions MDFlag 125
Hash Functions MD0 80
Hash Functions No Difference 175
Hash Functions Twin Keys 100
Crypto on the Web Token Appreciation 5
Hash Functions PriMeD5 100
Isogenies The j-invariant 20
Isogenies Introduction to Isogenies 10
ZKPs Let's Prove It 120
ZKPs Couples 100
ZKPs Let's Prove It Again 175
ZKPs Mister Saplins The Prover 125
ZKPs Mister Saplin's Preview 80
ZKPs Fischlin Transform 180
Hash Functions WOTS Up 2 90
Hash Functions WOTS Up 75
Hash Functions Merkle Trees 25
Hash Functions Hash Stuffing 50
Hash Functions Collider 50
ZKPs Pairing-Based Cryptography 50
Misc L-Win 120
Hash Functions Jack's Birthday Confusion 30
ZKPs Hamiltonicity 1 100
CTF Archive Hamiltonicity (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
Misc Toshi's Treasure 150
Misc Armory 100
Elliptic Curves Real Curve Crypto 200
Misc Bruce Schneier's Password 100
Elliptic Curves Edwards Goes Degenerate 100
Elliptic Curves Double and Broken 50
Elliptic Curves Montgomery's Ladder 40
Misc Bit by Bit 100
Lattices Missing Modulus 80
Hash Functions Jack's Birthday Hash 20
Lattices Nativity 60
Misc Nothing Up My Sleeve 150
Lattices Noise Cheap 90
Elliptic Curves No Random, No Bias 120
Elliptic Curves ProSign 3 100
Elliptic Curves Curveball 100
Lattices Too Many Errors 100
Lattices Bounded Noise 50
ZKPs ZKP Introduction 5
Elliptic Curves Digestive 60
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
Misc Lo-Hi Card Game 120
Misc Trust Games 150
Misc RSA vs RNG 150
Symmetric Ciphers The Good, The Pad, The Ugly 100
Symmetric Ciphers Pad Thai 80
Symmetric Ciphers Oh SNAP 120
Symmetric Ciphers Dancing Queen 120
Diffie-Hellman The Matrix Revolutions 125
General Transparency 50
General Lemur XOR 40
General You either know, XOR you don't 30
Mathematics Real Eisenstein 150
Mathematics Prime and Prejudice 200
Mathematics Cofactor Cofantasy 150
Mathematics Roll your Own 125
Diffie-Hellman The Matrix Reloaded 100
Elliptic Curves Moving Problems 150
CTF Archive RRSSAA (ECSC 2023 (Norway)) 0
CTF Archive Hide and seek (ECSC 2023 (Norway)) 0
CTF Archive Tenet: The Plagarism (HKCERT CTF) 0
CTF Archive d-phi-enc (HackTM CTF) 0
RSA Let's Decrypt Again 175
Elliptic Curves Elliptic Nodes 150
Diffie-Hellman The Matrix 75
Mathematics Unencryptable 125
Mathematics Ellipse Curve Cryptography 125
Symmetric Ciphers Forbidden Fruit 150
Symmetric Ciphers Paper Plane 120
Mathematics No Way Back Home 100
Mathematics Modular Binomials 80
Mathematics Adrien's Signs 80
Mathematics Successive Powers 60
Lattices Find the Lattice 100
Mathematics Broken RSA 100
Symmetric Ciphers Stream of Consciousness 80
Symmetric Ciphers Logon Zero 80
Symmetric Ciphers Bean Counter 60
Mathematics Modular Square Root 35
Lattices Gaussian Reduction 50
Lattices Gram Schmidt 30
Lattices What's a Lattice? 40
Lattices Size and Basis 15
Lattices Vectors 10
Mathematics Legendre Symbol 35
Misc No Leaks 100
Lattices Backpack Cryptography 120
Symmetric Ciphers CTRIME 70
Symmetric Ciphers Symmetry 50
Misc Gotta Go Fast 40
Mathematics Quadratic Residues 25
RSA Vote for Pedro 150
RSA Blinding Light 120
General Modular Inverting 25
General Modular Arithmetic 2 20
RSA Signing Server 60
Mathematics Chinese Remainder Theorem 40
RSA Let's Decrypt 80
RSA Null or Never 100
RSA Bespoke Padding 100
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 Background Reading 5
Elliptic Curves Point Negation 10
Introduction Network Attacks 5
Introduction Great Snakes 3
Introduction Finding Flags 2
Diffie-Hellman Static Client 2 120
Diffie-Hellman Additive 70
Diffie-Hellman Static Client 100
Diffie-Hellman Script Kiddie 70
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
Symmetric Ciphers Lazy CBC 60
Symmetric Ciphers Triple DES 60
Symmetric Ciphers Flipping Cookie 60
Symmetric Ciphers ECB Oracle 60
Symmetric Ciphers ECB CBC WTF 55
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
RSA RSA Backdoor Viability 175
RSA Ron was Wrong, Whit is Right 90
RSA Fast Primes 75
RSA Marin's Secrets 50
RSA Infinite Descent 50
RSA Endless Emails 150
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 RSA Signatures 25
RSA Inferius Prime 30
RSA Factoring 15
RSA RSA Decryption 20
RSA Private Keys 20
RSA Euler's Totient 20
RSA Public Keys 15
RSA Modular Exponentiation 10
General Encoding Challenge 40
General SSH Keys 35
General CERTainly not 30
General Privacy-Enhanced Mail? 25
General Extended GCD 20
General Modular Arithmetic 1 20
General Favourite byte 20
General Greatest Common Divisor 15
General XOR Properties 15
General XOR Starter 10
General Bytes and Big Integers 10
General Base64 10
General Hex 5
General ASCII 5

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