ahmed_raf

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Solved Challenges

Symmetric Ciphers Flipping Cookie 60
Mathematics Broken RSA 100
RSA Endless Emails 150
RSA Ron was Wrong, Whit is Right 90
Mathematics Unencryptable 125
Symmetric Ciphers ECB Oracle 60
Symmetric Ciphers ECB CBC WTF 55
Symmetric Ciphers Passwords as Keys 50
Symmetric Ciphers Modes of Operation Starter 15
Mathematics Find the Lattice 100
Diffie-Hellman Diffie-Hellman Starter 5 40
RSA Fast Primes 75
General Transparency 50
General CERTainly not 30
General SSH Keys 35
General Privacy-Enhanced Mail? 25
General Lemur XOR 40
RSA RSA Backdoor Viability 175
RSA Infinite Descent 50
RSA Marin's Secrets 50
RSA Everything is Still Big 100
RSA Crossed Wires 100
General Encoding Challenge 40
Mathematics Modular Square Root 35
Symmetric Ciphers Bringing It All Together 50
Symmetric Ciphers Diffusion through Permutation 30
Symmetric Ciphers Confusion through Substitution 25
RSA Modulus Inutilis 50
Mathematics Modular Binomials 80
Introduction Network Attacks 5
RSA Everything is Big 70
RSA Salty 20
RSA Manyprime 40
RSA Square Eyes 35
RSA Inferius Prime 30
RSA Factoring 15
RSA Monoprime 30
RSA RSA Starter 6 25
RSA RSA Starter 2 15
RSA RSA Starter 5 20
Mathematics Successive Powers 60
Mathematics Gaussian Reduction 50
RSA RSA Starter 4 20
RSA RSA Starter 3 20
Mathematics What's a Lattice? 40
Diffie-Hellman Diffie-Hellman Starter 4 30
Diffie-Hellman Diffie-Hellman Starter 2 20
Diffie-Hellman Diffie-Hellman Starter 3 20
Diffie-Hellman Diffie-Hellman Starter 1 10
Mathematics Gram Schmidt 30
Mathematics Size and Basis 15
Symmetric Ciphers Round Keys 20
Mathematics Vectors 10
RSA RSA Starter 1 10
Symmetric Ciphers Structure of AES 15
Mathematics Adrien's Signs 80
Symmetric Ciphers Resisting Bruteforce 10
Symmetric Ciphers Keyed Permutations 5
Mathematics Chinese Remainder Theorem 40
Mathematics Legendre Symbol 35
Mathematics Quadratic Residues 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 Bytes and Big Integers 10
General Base64 10
General Hex 5
General ASCII 5
Introduction Great Snakes 3
Introduction Finding Flags 2

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