Cyrus

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Solved Challenges

RSA Factoring 15
RSA RSA Signatures 25
RSA RSA Decryption 20
RSA Private Keys 20
Crypto on the Web JWT Sessions 10
Crypto on the Web Token Appreciation 5
Mathematics Successive Powers 60
Mathematics Chinese Remainder Theorem 40
Mathematics Modular Square Root 35
Mathematics Legendre Symbol 35
General Extended GCD 20
General Favourite byte 20
Diffie-Hellman Working with Fields 10
RSA Euler's Totient 20
RSA Public Keys 15
RSA Modular Exponentiation 10
Symmetric Ciphers Modes of Operation Starter 15
Symmetric Ciphers Round Keys 20
Symmetric Ciphers Structure of AES 15
Symmetric Ciphers Resisting Bruteforce 10
Symmetric Ciphers Keyed Permutations 5
Lattices Vectors 10
Lattices Size and Basis 15
Mathematics Quadratic Residues 25
General Privacy-Enhanced Mail? 25
General Modular Arithmetic 2 20
General Modular Inverting 25
General Modular Arithmetic 1 20
General Greatest Common Divisor 15
General Lemur XOR 40
General XOR Properties 15
General Bytes and Big Integers 10
General XOR Starter 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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