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Solved Challenges

RSA Modulus Inutilis 50
RSA Salty 20
RSA Manyprime 40
Mathematics Broken RSA 100
Symmetric Ciphers Modes of Operation Starter 15
General Encoding Challenge 40
General You either know, XOR you don't 30
Symmetric Ciphers Round Keys 20
Symmetric Ciphers Structure of AES 15
ZKPs Too Honest 50
Symmetric Ciphers Resisting Bruteforce 10
ZKPs Non-Interactive 35
RSA Square Eyes 35
RSA Monoprime 30
RSA RSA Signatures 25
RSA Inferius Prime 30
RSA Factoring 15
RSA RSA Decryption 20
RSA Private Keys 20
RSA Euler's Totient 20
RSA Public Keys 15
RSA Modular Exponentiation 10
Symmetric Ciphers Keyed Permutations 5
General Privacy-Enhanced Mail? 25
ZKPs Honest Verifier Zero Knowledge 30
ZKPs Special Soundness 25
ZKPs Proofs of Knowledge 20
ZKPs ZKP Introduction 5
Isogenies Breaking SIDH 250
Diffie-Hellman Export-grade 100
Diffie-Hellman Parameter Injection 60
Diffie-Hellman Deriving Symmetric Keys 40
Diffie-Hellman Computing Shared Secrets 30
Diffie-Hellman Computing Public Values 25
Diffie-Hellman Generators of Groups 20
Diffie-Hellman Working with Fields 10
Elliptic Curves Efficient Exchange 50
Isogenies Better than Linear 85
Isogenies What's My Kernel 70
Isogenies CSIDH Key Exchange 90
Isogenies Twisted CSIDH Isogenies 70
Isogenies Secret Exponents 60
Isogenies Prime Power Isogenies 50
Isogenies Special Isogenies 30
Mathematics Successive Powers 60
Mathematics Modular Square Root 35
Mathematics Legendre Symbol 35
Isogenies Composite Isogenies 60
Isogenies DLOG on the Surface 40
Isogenies SIDH Key Exchange 80
Hash Functions Hash Stuffing 50
General Favourite byte 20
General XOR Properties 15
General XOR Starter 10
General Bytes and Big Integers 10
General Modular Inverting 25
General Modular Arithmetic 2 20
General Modular Arithmetic 1 20
General Extended GCD 20
General Greatest Common Divisor 15
General Base64 10
Hash Functions Collider 50
Introduction Network Attacks 5
Hash Functions Jack's Birthday Hash 20
Hash Functions Jack's Birthday Confusion 30
Mathematics Quadratic Residues 25
Isogenies Three Isogenies 35
Isogenies Two Isogenies 30
Elliptic Curves Curves and Logs 40
Isogenies Montgomery Curves 30
Isogenies Image Point Arithmetic 30
Isogenies Where's the Supersingular Curve 25
Isogenies The j-invariant 20
Isogenies Introduction to Isogenies 10
General Hex 5
General ASCII 5
Lattices Backpack Cryptography 120
Lattices Find the Lattice 100
Lattices What's a Lattice? 40
Lattices Size and Basis 15
Lattices Vectors 10
Mathematics Chinese Remainder Theorem 40
Elliptic Curves Scalar Multiplication 35
Elliptic Curves Point Addition 30
Elliptic Curves Background Reading 5
Elliptic Curves Point Negation 10
Introduction Great Snakes 3
Introduction Finding Flags 2

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