Riani

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Solved Challenges

General You either know, XOR you don't 30
RSA Modular Exponentiation 10
Elliptic Curves Point Negation 10
Elliptic Curves Background Reading 5
Symmetric Ciphers Keyed Permutations 5
Mathematics Quadratic Residues 25
General Modular Arithmetic 2 20
General Extended GCD 20
General Greatest Common Divisor 15
Crypto on the Web JWT Sessions 10
Lattices From Private to Public Key LWE 25
Lattices LWE Intro 10
Lattices What's a Lattice? 40
Lattices Vectors 10
Symmetric Ciphers The Good, The Pad, The Ugly 100
Symmetric Ciphers Oh SNAP 120
Symmetric Ciphers Symmetry 50
Symmetric Ciphers ECB CBC WTF 55
Symmetric Ciphers Flipping Cookie 60
Symmetric Ciphers Modes of Operation Starter 15
Symmetric Ciphers Round Keys 20
Symmetric Ciphers Structure of AES 15
Symmetric Ciphers Resisting Bruteforce 10
General Modular Inverting 25
General Modular Arithmetic 1 20
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 Great Snakes 3
Introduction Finding Flags 2
Diffie-Hellman Additive 70
Diffie-Hellman Static Client 100
Diffie-Hellman Export-grade 100
Diffie-Hellman Computing Shared Secrets 30
Diffie-Hellman Computing Public Values 25
Diffie-Hellman Generators of Groups 20
Diffie-Hellman Working with Fields 10

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