cillian

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Solved Challenges

Lattices Gaussian Reduction 50
Lattices What's a Lattice? 40
Elliptic Curves Scalar Multiplication 35
RSA Everything is Big 70
Elliptic Curves Point Addition 30
Elliptic Curves Point Negation 10
Lattices Gram Schmidt 30
Hash Functions Collider 50
Diffie-Hellman Parameter Injection 60
Diffie-Hellman Deriving Symmetric Keys 40
Diffie-Hellman Computing Shared Secrets 30
Diffie-Hellman Computing Public Values 25
RSA Manyprime 40
Lattices Size and Basis 15
Lattices Vectors 10
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 Chinese Remainder Theorem 40
Mathematics Modular Square Root 35
Mathematics Legendre Symbol 35
Mathematics Quadratic Residues 25
Hash Functions Jack's Birthday Confusion 30
Hash Functions Jack's Birthday Hash 20
Lattices LWE Background 5
Crypto on the Web Saying Hello 20
Crypto on the Web TLS Handshake 15
Crypto on the Web Sharks on the Wire 10
Crypto on the Web Secure Protocols 5
Crypto on the Web JSON in JSON 40
Crypto on the Web JWT Secrets 25
RSA Marin's Secrets 50
RSA Modulus Inutilis 50
RSA Salty 20
RSA Square Eyes 35
RSA Inferius Prime 30
Diffie-Hellman Generators of Groups 20
Diffie-Hellman Working with Fields 10
General Lemur XOR 40
General Transparency 50
General SSH Keys 35
General CERTainly not 30
General Privacy-Enhanced Mail? 25
General Modular Inverting 25
General Modular Arithmetic 2 20
General Modular Arithmetic 1 20
General Extended GCD 20
RSA Monoprime 30
RSA Factoring 15
General Greatest Common Divisor 15
General You either know, XOR you don't 30
Elliptic Curves Background Reading 5
General Favourite byte 20
Crypto on the Web No Way JOSE 20
Crypto on the Web JWT Sessions 10
Crypto on the Web Token Appreciation 5
RSA RSA Signatures 25
RSA RSA Decryption 20
RSA Private Keys 20
RSA Euler's Totient 20
RSA Public Keys 15
RSA Modular Exponentiation 10
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

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