CommandMaster

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Submitted Solutions

C0ll1d3r (Firebird Internal CTF) 0
Share (HITCON CTF) 0
Blind (ECSC 2023 (Norway)) 0
RRSSAA (ECSC 2023 (Norway)) 0
Additional problems (CSC Belgium) 0

Solved Challenges

Elliptic Curves Micro Transmissions 120
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
Elliptic Curves Curveball 100
Elliptic Curves Digestive 60
Crypto on the Web Decrypting TLS 1.3 35
Crypto on the Web Decrypting TLS 1.2 30
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
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
Hash Functions Invariant 250
Hash Functions WOTS Up 75
Hash Functions Merkle Trees 25
Hash Functions Mixed Up 120
Hash Functions MDFlag 125
Hash Functions MD0 80
Hash Functions No Difference 175
Elliptic Curves Moving Problems 150
Elliptic Curves Elliptic Nodes 150
Isogenies Montgomery Curves 30
Isogenies Image Point Arithmetic 30
Isogenies Where's the Supersingular Curve 25
Isogenies The j-invariant 20
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
Hash Functions Hash Stuffing 50
Hash Functions Collider 50
Hash Functions Jack's Birthday Confusion 30
Hash Functions Jack's Birthday Hash 20
Diffie-Hellman The Matrix Reloaded 100
Diffie-Hellman The Matrix 75
Diffie-Hellman Script Kiddie 70
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
RSA Fast Primes 75
RSA Let's Decrypt Again 175
RSA Vote for Pedro 150
RSA Blinding Light 120
RSA Let's Decrypt 80
RSA Signing Server 60
RSA Null or Never 100
RSA Bespoke Padding 100
General CERTainly not 30
RSA Marin's Secrets 50
RSA Infinite Descent 50
RSA Endless Emails 150
RSA Manyprime 40
RSA Everything is Still Big 100
RSA Crossed Wires 100
RSA Everything is Big 70
RSA Square Eyes 35
RSA Monoprime 30
RSA Inferius Prime 30
Mathematics Prime and Prejudice 200
Crypto on the Web JWT Sessions 10
Crypto on the Web Token Appreciation 5
Symmetric Ciphers Paper Plane 120
Mathematics Chinese Remainder Theorem 40
Mathematics Modular Square Root 35
Mathematics Legendre Symbol 35
Mathematics Quadratic Residues 25
Symmetric Ciphers Oracular Spectacular 150
Symmetric Ciphers Forbidden Fruit 150
Symmetric Ciphers The Good, The Pad, The Ugly 100
Symmetric Ciphers Pad Thai 80
Symmetric Ciphers Dancing Queen 120
Symmetric Ciphers Logon Zero 80
Symmetric Ciphers Stream of Consciousness 80
Symmetric Ciphers CTRIME 70
Symmetric Ciphers Bean Counter 60
Symmetric Ciphers Symmetry 50
Symmetric Ciphers Triple DES 60
Symmetric Ciphers Lazy CBC 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
CTF Archive d-phi-enc (HackTM CTF) 0
CTF Archive Sus (ImaginaryCTF) 0
Elliptic Curves Point Negation 10
Elliptic Curves Background Reading 5
CTF Archive C0ll1d3r (Firebird Internal CTF) 0
CTF Archive Authenticator (Firebird Internal CTF) 0
CTF Archive Share (HITCON CTF) 0
CTF Archive RRSSAA (ECSC 2023 (Norway)) 0
CTF Archive Leet Universe (ImaginaryCTF (Daily)) 0
CTF Archive Blind (ECSC 2023 (Norway)) 0
RSA RSA Backdoor Viability 175
Misc Toshi's Treasure 150
Misc Bruce Schneier's Password 100
Misc Bruce Schneier's Password: Part 2 250
Misc No Leaks 100
Misc Gotta Go Fast 40
Isogenies Introduction to Isogenies 10
Mathematics Real Eisenstein 150
Mathematics Cofactor Cofantasy 150
Mathematics Unencryptable 125
Mathematics Roll your Own 125
Mathematics Ellipse Curve Cryptography 125
Mathematics No Way Back Home 100
Mathematics Broken RSA 100
Mathematics Modular Binomials 80
Mathematics Adrien's Signs 80
Mathematics Successive Powers 60
CTF Archive Twist and Shout (Zh3r0 CTF V2) 0
CTF Archive import numpy as MT (Zh3r0 CTF V2) 0
CTF Archive Additional problems (CSC Belgium) 0
Symmetric Ciphers Structure of AES 15
Symmetric Ciphers Resisting Bruteforce 10
Symmetric Ciphers Keyed Permutations 5
General Lemur XOR 40
RSA Modulus Inutilis 50
RSA Salty 20
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
General Privacy-Enhanced Mail? 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 Encoding Challenge 40
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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