tehdisko

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Solved Challenges

Block Ciphers Passwords as Keys 50
Block Ciphers Block Cipher Mode Starter 15
Misc L-Win 120
Misc Gotta Go Fast 40
Crypto on the Web JSON in JSON 40
Crypto on the Web RSA or HMAC? 35
Crypto on the Web JWT Secrets 25
Crypto on the Web No Way JOSE 20
Crypto on the Web JWT Sessions 10
Crypto on the Web Token Appreciation 5
General Transparency 50
Mathematics Chinese Remainder Theorem 40
Mathematics What's a Lattice? 40
Mathematics Gram Schmidt 30
Mathematics Size and Basis 15
Mathematics Vectors 10
Mathematics Modular Square Root 35
Block Ciphers Resisting Bruteforce 10
Block Ciphers Keyed Permutations 5
General CERTainly not 30
General Privacy-Enhanced Mail? 25
General Modular Inverting 25
General Extended GCD 20
General Lemur XOR 40
Mathematics Legendre Symbol 35
Mathematics Quadratic Residues 25
General Modular Arithmetic 2 20
General Modular Arithmetic 1 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 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
Introduction Finding Flags 2
RSA Crossed Wires 100
RSA Everything is Big 70
RSA Modulus Inutilis 50
RSA Salty 20
RSA Manyprime 40
RSA Square Eyes 35
RSA Monoprime 30
RSA Inferius Prime 30
RSA Factoring 15
RSA RSA Starter 6 25
RSA RSA Starter 4 20
RSA RSA Starter 5 20
RSA RSA Starter 3 20
RSA RSA Starter 2 15
RSA RSA Starter 1 10

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