ahiezer

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Solved Challenges

General Transparency 50
General CERTainly not 30
General Privacy-Enhanced Mail? 25
Mathematics Chinese Remainder Theorem 40
Mathematics Modular Square Root 35
Crypto on the Web JWT Secrets 25
Block Ciphers ECB Oracle 60
RSA Crossed Wires 100
RSA Everything is Big 70
RSA Modulus Inutilis 50
RSA Salty 20
RSA RSA Starter 6 25
RSA Square Eyes 35
RSA Manyprime 40
Mathematics Legendre Symbol 35
RSA Monoprime 30
RSA Inferius Prime 30
RSA Factoring 15
RSA RSA Starter 5 20
RSA RSA Starter 4 20
RSA RSA Starter 3 20
RSA RSA Starter 2 15
RSA RSA Starter 1 10
Diffie-Hellman Diffie-Hellman Starter 1 10
Mathematics Size and Basis 15
Mathematics Vectors 10
Block Ciphers Passwords as Keys 50
Block Ciphers Block Cipher Mode Starter 15
Block Ciphers Diffusion through Permutation 30
Block Ciphers Confusion through Substitution 25
Block Ciphers Round Keys 20
Block Ciphers Structure of AES 15
Block Ciphers Resisting Bruteforce 10
Block Ciphers Keyed Permutations 5
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 Lemur XOR 40
General Favourite byte 20
General You either know, XOR you don't 30
General XOR Properties 15
General XOR Starter 10
Crypto on the Web No Way JOSE 20
Crypto on the Web JWT Sessions 10
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
Crypto on the Web Token Appreciation 5
Introduction Finding Flags 2

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