Krako

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Solved Challenges

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 Crossed Wires 100
RSA Signing Server 60
RSA Endless Emails 150
RSA Everything is Still Big 100
RSA Marin's Secrets 50
RSA Infinite Descent 50
Symmetric Ciphers Passwords as Keys 50
Lattices Size and Basis 15
RSA Everything is Big 70
RSA RSA Signatures 25
Symmetric Ciphers Symmetry 50
Symmetric Ciphers Flipping Cookie 60
Symmetric Ciphers ECB CBC WTF 55
Symmetric Ciphers Modes of Operation Starter 15
Symmetric Ciphers Bringing It All Together 50
Crypto on the Web No Way JOSE 20
Crypto on the Web JWT Sessions 10
Crypto on the Web Token Appreciation 5
RSA Square Eyes 35
Elliptic Curves Efficient Exchange 50
Elliptic Curves Curves and Logs 40
Elliptic Curves Scalar Multiplication 35
Elliptic Curves Point Addition 30
Elliptic Curves Point Negation 10
ZKPs Proofs of Knowledge 20
ZKPs ZKP Introduction 5
RSA Modulus Inutilis 50
Elliptic Curves Background Reading 5
RSA Salty 20
RSA Manyprime 40
RSA Monoprime 30
RSA Inferius Prime 30
RSA Factoring 15
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
General Lemur XOR 40
General You either know, XOR you don't 30
Lattices Vectors 10
RSA RSA Decryption 20
General Transparency 50
General SSH Keys 35
General CERTainly not 30
General Privacy-Enhanced Mail? 25
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 Favourite byte 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
Introduction Finding Flags 2
General ASCII 5
Introduction Network Attacks 5
Introduction Great Snakes 3

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