Robin_Jadoul

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Website: https://ur4ndom.dev

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Submitted Solutions

SpongeBob SquarePants / Battle for Bikini Bottom - Rehydrated (HTB Cyber Apocalypse) 0
Functional (ICC Athens) 0
RSA or HMAC? Part 2 6
Jeff's LFSR 9
RSA Backdoor Viability 13
Transparency 98
Let's Decrypt 13
PriMeD5 5
Bespoke Padding 4
Real Eisenstein 3
Nothing Up My Sleeve 8
Paper Plane 12
Structure of AES 74
Broken RSA 16
Static Client 2 12
Toshi's Treasure 9
Prime and Prejudice 26
Modulus Inutilis 17
Static Client 16
Inferius Prime 6
Adrien's Signs 134
Modular Binomials 28
Encoding Challenge 84
Micro Transmissions 14
Curveball 6
Bit by Bit 19
Lo-Hi Card Game 17

Solved Challenges

CTF Archive Unbalanced (ICC Athens) 0
CTF Archive WOTS Up 2 (ECSC 2023 (Norway)) 0
CTF Archive WOTS Up (ECSC 2023 (Norway)) 0
CTF Archive Twist and shout (ECSC 2023 (Norway)) 0
CTF Archive Tough decisions (ECSC 2023 (Norway)) 0
CTF Archive RRSSAA (ECSC 2023 (Norway)) 0
CTF Archive Put a ring on it (ECSC 2023 (Norway)) 0
CTF Archive Irish flan (ECSC 2023 (Norway)) 0
CTF Archive Hide and seek (ECSC 2023 (Norway)) 0
CTF Archive Blind (ECSC 2023 (Norway)) 0
Crypto on the Web Megalomaniac 3 120
Crypto on the Web Megalomaniac 2 120
Crypto on the Web Megalomaniac 1 100
Elliptic Curves Real Curve Crypto 200
Hash Functions MDFlag 125
Elliptic Curves Digestive 60
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
Post-Quantum Noise Cheap 90
Post-Quantum Missing Modulus 80
Post-Quantum Nativity 60
Post-Quantum Noise Free 40
Post-Quantum LWE Low Bits Message 20
Post-Quantum LWE High Bits Message 15
Misc RSA vs RNG 150
Post-Quantum From Private to Public Key LWE 25
Post-Quantum LWE Intro 10
Post-Quantum LWE Background 5
CTF Archive SpongeBob SquarePants / Battle for Bikini Bottom - Rehydrated (HTB Cyber Apocalypse) 0
CTF Archive ed25519 magic (ICC Athens) 0
CTF Archive Functional (ICC Athens) 0
Symmetric Ciphers Beatboxer 150
Mathematics No Way Back Home 100
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
Misc LFSR Destroyer 250
Diffie-Hellman The Matrix Revolutions 125
Diffie-Hellman The Matrix Reloaded 100
Elliptic Curves Double and Broken 50
Elliptic Curves Montgomery's Ladder 40
Mathematics Roll your Own 125
General SSH Keys 35
Diffie-Hellman The Matrix 75
Symmetric Ciphers Dancing Queen 120
Crypto on the Web RSA or HMAC? Part 2 100
Hash Functions Hash Stuffing 50
Misc Bruce Schneier's Password: Part 2 250
Misc L-Win 120
Hash Functions Mixed Up 120
Symmetric Ciphers Oh SNAP 120
Misc Bruce Schneier's Password 100
Crypto on the Web JSON in JSON 40
Hash Functions Invariant 250
Misc Jeff's LFSR 150
RSA RSA Backdoor Viability 175
Hash Functions No Difference 175
Misc Trust Games 150
Symmetric Ciphers Logon Zero 80
Elliptic Curves Edwards Goes Degenerate 100
Mathematics Cofactor Cofantasy 150
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
Hash Functions Jack's Birthday Hash 20
Hash Functions Jack's Birthday Confusion 30
Hash Functions Twin Keys 100
General Transparency 50
RSA Let's Decrypt Again 175
Mathematics Ellipse Curve Cryptography 125
Elliptic Curves No Random, No Bias 120
Hash Functions PriMeD5 100
RSA Let's Decrypt 80
Post-Quantum Too Many Errors 100
Mathematics Find the Lattice 100
Mathematics Unencryptable 125
Hash Functions MD0 80
Symmetric Ciphers Forbidden Fruit 150
Hash Functions Collider 50
Symmetric Ciphers Triple DES 60
Mathematics Backpack Cryptography 120
Mathematics Gaussian Reduction 50
Mathematics What's a Lattice? 40
Mathematics Gram Schmidt 30
Mathematics Size and Basis 15
Mathematics Vectors 10
Mathematics Real Eisenstein 150
Misc Nothing Up My Sleeve 150
Symmetric Ciphers Paper Plane 120
RSA Bespoke Padding 100
Elliptic Curves Moving Problems 150
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 Broken RSA 100
Mathematics Modular Square Root 35
Mathematics Prime and Prejudice 200
Elliptic Curves Elliptic Nodes 150
RSA Crossed Wires 100
Mathematics Quadratic Residues 25
Misc Toshi's Treasure 150
Diffie-Hellman Static Client 2 120
Mathematics Legendre Symbol 35
General XOR Properties 15
Elliptic Curves Micro Transmissions 120
Misc Lo-Hi Card Game 120
Elliptic Curves Curveball 100
Misc Bit by Bit 100
RSA Fast Primes 75
RSA Vote for Pedro 150
RSA Blinding Light 120
RSA Signing Server 60
RSA Endless Emails 150
RSA Null or Never 100
RSA Ron was Wrong, Whit is Right 90
RSA Infinite Descent 50
Elliptic Curves ProSign 3 100
Elliptic Curves Scalar Multiplication 35
Elliptic Curves Exceptional Curves 100
Elliptic Curves Smooth Criminal 60
Elliptic Curves Efficient Exchange 50
Elliptic Curves Curves and Logs 40
Elliptic Curves Point Addition 30
Elliptic Curves Point Negation 10
Diffie-Hellman Additive 70
Diffie-Hellman Static Client 100
Diffie-Hellman Export-grade 100
Diffie-Hellman Parameter Injection 60
RSA Marin's Secrets 50
RSA Everything is Big 70
RSA Manyprime 40
RSA Modulus Inutilis 50
RSA Salty 20
RSA Everything is Still Big 100
RSA Square Eyes 35
RSA Monoprime 30
RSA Inferius Prime 30
RSA Factoring 15
RSA RSA Starter 6 25
Elliptic Curves Background Reading 5
Symmetric Ciphers CTRIME 70
RSA RSA Starter 5 20
RSA RSA Starter 4 20
RSA RSA Starter 3 20
RSA RSA Starter 2 15
RSA RSA Starter 1 10
Symmetric Ciphers Bean Counter 60
Symmetric Ciphers Stream of Consciousness 80
Symmetric Ciphers Symmetry 50
Symmetric Ciphers Lazy CBC 60
Symmetric Ciphers ECB Oracle 60
Symmetric Ciphers Flipping Cookie 60
Symmetric Ciphers ECB CBC WTF 55
Symmetric Ciphers Passwords as Keys 50
Diffie-Hellman Script Kiddie 70
Diffie-Hellman Diffie-Hellman Starter 5 40
Diffie-Hellman Diffie-Hellman Starter 4 30
Diffie-Hellman Diffie-Hellman Starter 3 20
Diffie-Hellman Diffie-Hellman Starter 2 20
Diffie-Hellman Diffie-Hellman Starter 1 10
Misc No Leaks 100
Misc Armory 100
Misc Gotta Go Fast 40
Symmetric Ciphers Modes of Operation Starter 15
Mathematics Adrien's Signs 80
Mathematics Successive Powers 60
Mathematics Modular Binomials 80
General Extended GCD 20
General CERTainly not 30
General Privacy-Enhanced Mail? 25
Mathematics Chinese Remainder Theorem 40
General Modular Inverting 25
General Modular Arithmetic 2 20
General Modular Arithmetic 1 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 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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