r_karoly

Two robots

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Solved Challenges

Mathematics Gaussian Reduction 50
Mathematics What's a Lattice? 40
Block Ciphers Stream of Consciousness 80
Block Ciphers Bean Counter 60
RSA Signing Server 60
Diffie-Hellman Parameter Injection 60
Misc Lo-Hi Card Game 120
Misc No Leaks 100
Misc Collider 50
Mathematics Vectors 10
Mathematics Size and Basis 15
RSA Marin's Secrets 50
RSA Infinite Descent 50
RSA Square Eyes 35
Diffie-Hellman Diffie-Hellman Starter 5 40
Diffie-Hellman Diffie-Hellman Starter 4 30
RSA RSA Starter 6 25
RSA Manyprime 40
RSA Monoprime 30
RSA Inferius Prime 30
Mathematics Modular Square Root 35
RSA Modulus Inutilis 50
RSA Salty 20
Block Ciphers Lazy CBC 60
Misc Gotta Go Fast 40
Block Ciphers Flipping Cookie 60
Block Ciphers Symmetry 50
Block Ciphers ECB CBC WTF 55
Block Ciphers ECB Oracle 60
Block Ciphers Bringing It All Together 50
Block Ciphers Keyed Permutations 5
Block Ciphers Resisting Bruteforce 10
Block Ciphers Diffusion through Permutation 30
Block Ciphers Confusion through Substitution 25
Block Ciphers Round Keys 20
Block Ciphers Structure of AES 15
Mathematics Successive Powers 60
Mathematics Adrien's Signs 60
Diffie-Hellman Diffie-Hellman Starter 2 20
Diffie-Hellman Diffie-Hellman Starter 3 20
RSA RSA Starter 5 20
RSA RSA Starter 4 20
RSA RSA Starter 3 20
RSA RSA Starter 2 15
Mathematics Chinese Remainder Theorem 40
Mathematics Legendre Symbol 35
Diffie-Hellman Diffie-Hellman Starter 1 10
Mathematics Quadratic Residues 25
General Modular Inverting 25
Block Ciphers Passwords as Keys 50
RSA Factoring 15
RSA RSA Starter 1 10
Block Ciphers Block Cipher Mode Starter 15
General CERTainly not 30
General Privacy-Enhanced Mail? 25
General Modular Arithmetic 2 20
General Modular Arithmetic 1 20
General Encoding Challenge 40
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 Base64 10
General Bytes and Big Integers 10
General Hex 5
General ASCII 5
Introduction Network Attacks 5
Introduction Great Snakes 3
Introduction Finding Flags 2

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