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Solved Challenges

Elliptic Curves Point Negation 10
Crypto on the Web JWT Secrets 25
Crypto on the Web No Way JOSE 20
Crypto on the Web JWT Sessions 10
Crypto on the Web Token Appreciation 5
Mathematics Adrien's Signs 80
RSA RSA Starter 6 25
Symmetric Ciphers Passwords as Keys 50
Elliptic Curves Curves and Logs 40
Elliptic Curves Scalar Multiplication 35
Elliptic Curves Point Addition 30
Mathematics Modular Binomials 80
Misc Armory 100
Misc Lo-Hi Card Game 120
Misc Gotta Go Fast 40
Misc No Leaks 100
Symmetric Ciphers ECB CBC WTF 55
Symmetric Ciphers ECB Oracle 60
Symmetric Ciphers Symmetry 50
Mathematics Successive Powers 60
RSA Everything is Still Big 100
RSA Everything is Big 70
RSA Crossed Wires 100
Elliptic Curves Background Reading 5
RSA Modulus Inutilis 50
Symmetric Ciphers Modes of Operation Starter 15
Diffie-Hellman Parameter Injection 60
RSA Inferius Prime 30
RSA Salty 20
RSA Manyprime 40
RSA Monoprime 30
RSA Square Eyes 35
RSA RSA Starter 5 20
Diffie-Hellman Diffie-Hellman Starter 5 40
Diffie-Hellman Diffie-Hellman Starter 4 30
Diffie-Hellman Diffie-Hellman Starter 3 20
RSA RSA Starter 3 20
Diffie-Hellman Diffie-Hellman Starter 2 20
Diffie-Hellman Diffie-Hellman Starter 1 10
Symmetric Ciphers Bringing It All Together 50
Mathematics What's a Lattice? 40
Mathematics Gram Schmidt 30
Mathematics Size and Basis 15
Mathematics 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
RSA Factoring 15
RSA RSA Starter 4 20
RSA RSA Starter 2 15
RSA RSA Starter 1 10
Mathematics Quadratic Residues 25
Mathematics Legendre Symbol 35
Mathematics Modular Square Root 35
General Privacy-Enhanced Mail? 25
Mathematics Chinese Remainder Theorem 40
General Modular Inverting 25
General Modular Arithmetic 2 20
General Modular Arithmetic 1 20
General XOR Properties 15
General Lemur XOR 40
General CERTainly not 30
Symmetric Ciphers Resisting Bruteforce 10
Symmetric Ciphers Keyed Permutations 5
General You either know, XOR you don't 30
General Favourite byte 20
General XOR Starter 10
General Encoding Challenge 40
General Bytes and Big Integers 10
General Hex 5
General ASCII 5
General Base64 10
General Extended GCD 20
General Greatest Common Divisor 15
Introduction Network Attacks 5
Introduction Great Snakes 3
Introduction Finding Flags 2

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