NGSM

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Solved Challenges

Elliptic Curves Background Reading 5
Diffie-Hellman Generators of Groups 20
Diffie-Hellman Deriving Symmetric Keys 40
Diffie-Hellman Computing Shared Secrets 30
Diffie-Hellman Computing Public Values 25
Diffie-Hellman Working with Fields 10
RSA Salty 20
RSA Square Eyes 35
RSA Inferius Prime 30
RSA RSA Decryption 20
RSA Private Keys 20
RSA Euler's Totient 20
RSA Factoring 15
RSA Public Keys 15
RSA Modular Exponentiation 10
Symmetric Ciphers Modes of Operation Starter 15
Symmetric Ciphers Bringing It All Together 50
Symmetric Ciphers Diffusion through Permutation 30
Symmetric Ciphers Confusion through Substitution 25
Symmetric Ciphers Round Keys 20
Symmetric Ciphers Structure of AES 15
Symmetric Ciphers Resisting Bruteforce 10
Symmetric Ciphers Keyed Permutations 5
Mathematics Successive Powers 60
Lattices Gaussian Reduction 50
Lattices What's a Lattice? 40
Mathematics Chinese Remainder Theorem 40
Mathematics Modular Square Root 35
Mathematics Legendre Symbol 35
Lattices Gram Schmidt 30
Mathematics Quadratic Residues 25
Lattices Size and Basis 15
Lattices Vectors 10
General Transparency 50
General Lemur XOR 40
General Encoding Challenge 40
General SSH Keys 35
General CERTainly not 30
General You either know, XOR you don't 30
General Privacy-Enhanced Mail? 25
General Modular Inverting 25
General Modular Arithmetic 2 20
General Modular Arithmetic 1 20
General Extended GCD 20
General Favourite byte 20
General Greatest Common Divisor 15
General XOR Properties 15
General XOR Starter 10
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

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