7Rocky

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Website: https://7rocky.github.io

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Submitted Solutions

André Encoding 1
Meet me in the Claw 0
A True Genus 5
An Evil Twisted Mind 3
A Twisted Mind 4
Ticket Maestro (CryptoHack) 0
Ticket Maestro 4
Hamiltonicity 2 (CryptoHack) 1
Hamiltonicity 2 2
Abelian SIDH 2
RSA vs RNG 1
Jeff's LFSR 0
Find the Lattice 3
Megalomaniac 2 2
Nativity 2

Solved Challenges

CTF Archive Share (HITCON CTF) 0
ZKPs Ticket Maestro 200
CTF Archive Ticket Maestro (CryptoHack) 0
Isogenies Breaking SIDH 250
ZKPs Hamiltonicity 2 175
CTF Archive Hamiltonicity 2 (CryptoHack) 0
Isogenies Meet me in the Claw 120
Isogenies A True Genus 175
Isogenies Dual Masters 90
ZKPs Fischlin Transform 180
CTF Archive Fischlin's Transformation (CryptoHack) 0
Isogenies CSIDH Key Exchange 90
Isogenies SIDH Key Exchange 80
Isogenies Abelian SIDH 90
Isogenies Better than Linear 85
Isogenies André Encoding 80
Isogenies Twisted CSIDH Isogenies 70
Elliptic Curves An Evil Twisted Mind 175
Isogenies Secret Exponents 60
ZKPs Mister Saplins The Prover 125
Isogenies Composite Isogenies 60
ZKPs Let's Prove It Again 175
ZKPs Let's Prove It 120
Isogenies What's My Kernel 70
ZKPs Hamiltonicity 1 100
CTF Archive Hamiltonicity (CryptoHack) 0
ZKPs OR Proof 75
CTF Archive OR Proof (CryptoHack) 0
Elliptic Curves An Exceptional Twisted Mind 125
Elliptic Curves A Twisted Mind 80
Elliptic Curves Checkpoint 150
ZKPs Couples 100
ZKPs Mister Saplin's Preview 80
Isogenies Prime Power Isogenies 50
Isogenies Special Isogenies 30
Isogenies Three Isogenies 35
Isogenies Two Isogenies 30
Isogenies DLOG on the Surface 40
Isogenies Montgomery Curves 30
Symmetric Ciphers Oracular Spectacular 150
Isogenies Where's the Supersingular Curve 25
Isogenies Image Point Arithmetic 30
ZKPs Too Honest 50
ZKPs Non-Interactive 35
ZKPs Honest Verifier Zero Knowledge 30
ZKPs Special Soundness 25
Symmetric Ciphers The Good, The Pad, The Ugly 100
Lattices Bounded Noise 50
Hash Functions Merkle Trees 25
Symmetric Ciphers Pad Thai 80
ZKPs Pairing-Based Cryptography 50
ZKPs Proofs of Knowledge 20
Isogenies The j-invariant 20
Isogenies Introduction to Isogenies 10
ZKPs ZKP Introduction 5
Hash Functions Invariant 250
Misc LFSR Destroyer 250
Elliptic Curves Real Curve Crypto 200
Misc Bruce Schneier's Password: Part 2 250
Diffie-Hellman The Matrix Revolutions 125
CTF Archive Irish flan (ECSC 2023 (Norway)) 0
CTF Archive Twist and shout (ECSC 2023 (Norway)) 0
CTF Archive Blind (ECSC 2023 (Norway)) 0
CTF Archive Tough decisions (ECSC 2023 (Norway)) 0
CTF Archive Hide and seek (ECSC 2023 (Norway)) 0
Hash Functions WOTS Up 2 90
Hash Functions WOTS Up 75
CTF Archive RRSSAA (ECSC 2023 (Norway)) 0
CTF Archive Put a ring on it (ECSC 2023 (Norway)) 0
Symmetric Ciphers Beatboxer 150
Crypto on the Web Megalomaniac 2 120
Mathematics Prime and Prejudice 200
RSA Let's Decrypt Again 175
Hash Functions No Difference 175
Crypto on the Web Megalomaniac 3 120
Crypto on the Web Megalomaniac 1 100
Mathematics Roll your Own 125
Elliptic Curves Edwards Goes Degenerate 100
Misc Jeff's LFSR 150
Misc Toshi's Treasure 150
Hash Functions Mixed Up 120
Mathematics Ellipse Curve Cryptography 125
Mathematics Real Eisenstein 150
Mathematics Cofactor Cofantasy 150
Symmetric Ciphers Forbidden Fruit 150
Misc Nothing Up My Sleeve 150
Diffie-Hellman The Matrix Reloaded 100
Hash Functions MDFlag 125
Misc L-Win 120
Lattices Too Many Errors 100
Lattices Noise Cheap 90
Misc Bruce Schneier's Password 100
RSA RSA Backdoor Viability 175
RSA Let's Decrypt 80
RSA Vote for Pedro 150
Diffie-Hellman The Matrix 75
Hash Functions PriMeD5 100
RSA Everything is Still Big 100
Hash Functions Twin Keys 100
RSA Endless Emails 150
RSA Blinding Light 120
Mathematics Unencryptable 125
Elliptic Curves Curveball 100
Elliptic Curves Digestive 60
Hash Functions MD0 80
Elliptic Curves No Random, No Bias 120
Elliptic Curves ProSign 3 100
Elliptic Curves Micro Transmissions 120
RSA Fast Primes 75
Elliptic Curves Double and Broken 50
Elliptic Curves Montgomery's Ladder 40
Diffie-Hellman Static Client 2 120
Lattices Nativity 60
Lattices Missing Modulus 80
RSA Everything is Big 70
Crypto on the Web RSA or HMAC? Part 2 100
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
Hash Functions Hash Stuffing 50
Crypto on the Web TLS Handshake 15
Misc Bit by Bit 100
Elliptic Curves Moving Problems 150
Elliptic Curves Elliptic Nodes 150
Elliptic Curves Exceptional Curves 100
Lattices Find the Lattice 100
Lattices Gaussian Reduction 50
Lattices What's a Lattice? 40
Lattices Gram Schmidt 30
Misc Trust Games 150
Symmetric Ciphers Bean Counter 60
Symmetric Ciphers Logon Zero 80
Symmetric Ciphers Paper Plane 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
Diffie-Hellman Script Kiddie 70
Misc RSA vs RNG 150
RSA Crossed Wires 100
Diffie-Hellman Static Client 100
RSA Ron was Wrong, Whit is Right 90
Diffie-Hellman Export-grade 100
Symmetric Ciphers Oh SNAP 120
Lattices Vectors 10
Mathematics No Way Back Home 100
Symmetric Ciphers Stream of Consciousness 80
Crypto on the Web Saying Hello 20
Misc Lo-Hi Card Game 120
Mathematics Adrien's Signs 80
Lattices LWE Intro 10
Misc Armory 100
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
Mathematics Modular Square Root 35
Mathematics Legendre Symbol 35
Lattices Backpack Cryptography 120
Lattices Size and Basis 15
Lattices LWE Background 5
RSA Bespoke Padding 100
RSA Null or Never 100
Elliptic Curves Smooth Criminal 60
Mathematics Modular Binomials 80
Crypto on the Web Sharks on the Wire 10
Crypto on the Web JSON in JSON 40
Diffie-Hellman Parameter Injection 60
Diffie-Hellman Additive 70
Crypto on the Web JWT Secrets 25
Crypto on the Web RSA or HMAC? 35
Symmetric Ciphers Symmetry 50
RSA Marin's Secrets 50
RSA Infinite Descent 50
RSA Signing Server 60
RSA Manyprime 40
RSA Square Eyes 35
RSA Monoprime 30
RSA Inferius Prime 30
General Transparency 50
General SSH Keys 35
General CERTainly not 30
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
Misc No Leaks 100
Misc Gotta Go Fast 40
Crypto on the Web Secure Protocols 5
Symmetric Ciphers CTRIME 70
Symmetric Ciphers Resisting Bruteforce 10
Symmetric Ciphers Triple DES 60
Symmetric Ciphers Flipping Cookie 60
Crypto on the Web No Way JOSE 20
Crypto on the Web JWT Sessions 10
Crypto on the Web Token Appreciation 5
Mathematics Successive Powers 60
Mathematics Broken RSA 100
Mathematics Chinese Remainder Theorem 40
General Privacy-Enhanced Mail? 25
General Extended GCD 20
General Lemur XOR 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
Hash Functions Collider 50
Hash Functions Jack's Birthday Hash 20
Hash Functions Jack's Birthday Confusion 30
Symmetric Ciphers Lazy CBC 60
Symmetric Ciphers Passwords as Keys 50
Symmetric Ciphers Modes of Operation Starter 15
Symmetric Ciphers ECB Oracle 60
Symmetric Ciphers ECB CBC WTF 55
General Encoding Challenge 40
Mathematics Quadratic Residues 25
RSA Modulus Inutilis 50
RSA Salty 20
Symmetric Ciphers Keyed Permutations 5
General You either know, XOR you don't 30
General Favourite byte 20
General XOR Properties 15
General Modular Inverting 25
General Modular Arithmetic 2 20
General Modular Arithmetic 1 20
General Greatest Common Divisor 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 Network Attacks 5
Symmetric Ciphers Dancing Queen 120
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
Introduction Finding Flags 2

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