S4uD

Two robots

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Solved Challenges

RSA Vote for Pedro 150
RSA Let's Decrypt Again 175
RSA Signing Server 60
RSA Bespoke Padding 100
RSA RSA Backdoor Viability 175
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 Inferius Prime 30
RSA Factoring 15
RSA RSA Decryption 20
RSA Private Keys 20
RSA Public Keys 15
RSA Modular Exponentiation 10
Hash Functions WOTS Up 75
Hash Functions Merkle Trees 25
Hash Functions Invariant 250
Hash Functions Mixed Up 120
Hash Functions MDFlag 125
Hash Functions MD0 80
Hash Functions No Difference 175
Hash Functions Twin Keys 100
Hash Functions PriMeD5 100
Hash Functions Hash Stuffing 50
Hash Functions Collider 50
Hash Functions Jack's Birthday Hash 20
Mathematics Adrien's Signs 80
General CERTainly not 30
General Privacy-Enhanced Mail? 25
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 Properties 15
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
RSA RSA Signatures 25
RSA Euler's Totient 20
Mathematics Chinese Remainder Theorem 40
Mathematics Legendre Symbol 35
CTF Archive RRSSAA (ECSC 2023 (Norway)) 0

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