SeifAhmed

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Solved Challenges

ZKPs Pairing-Based Cryptography 50
Symmetric Ciphers Passwords as Keys 50
ZKPs Special Soundness 25
Symmetric Ciphers Modes of Operation Starter 15
ZKPs OR Proof 75
ZKPs Too Honest 50
Isogenies The j-invariant 20
Isogenies Image Point Arithmetic 30
Diffie-Hellman Parameter Injection 60
Diffie-Hellman Export-grade 100
Elliptic Curves Smooth Criminal 60
Elliptic Curves Curveball 100
Elliptic Curves ProSign 3 100
Elliptic Curves Moving Problems 150
Symmetric Ciphers Round Keys 20
Symmetric Ciphers Structure of AES 15
Symmetric Ciphers Resisting Bruteforce 10
Symmetric Ciphers Keyed Permutations 5
Mathematics Modular Binomials 80
Mathematics Modular Square Root 35
General SSH Keys 35
General CERTainly not 30
General Privacy-Enhanced Mail? 25
General Encoding Challenge 40
Mathematics Legendre Symbol 35
Mathematics Adrien's Signs 80
Mathematics Quadratic Residues 25
Mathematics Chinese Remainder Theorem 40
General Modular Inverting 25
General Modular Arithmetic 2 20
General Modular Arithmetic 1 20
General Extended GCD 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 XOR Starter 10
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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