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Solved Challenges

Crypto on the Web JWT Secrets 25
RSA Ron was Wrong, Whit is Right 90
RSA Endless Emails 150
Mathematics Modular Binomials 80
Mathematics Adrien's Signs 80
Mathematics Successive Powers 60
Mathematics Chinese Remainder Theorem 40
RSA Fast Primes 75
RSA Marin's Secrets 50
Symmetric Ciphers Diffusion through Permutation 30
Symmetric Ciphers Confusion through Substitution 25
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
Hash Functions Jack's Birthday Confusion 30
Crypto on the Web Saying Hello 20
Diffie-Hellman Export-grade 100
Diffie-Hellman Parameter Injection 60
RSA Infinite Descent 50
RSA Everything is Still Big 100
Symmetric Ciphers Round Keys 20
Symmetric Ciphers Structure of AES 15
Diffie-Hellman Diffie-Hellman Starter 5 40
Diffie-Hellman Diffie-Hellman Starter 4 30
Diffie-Hellman Diffie-Hellman Starter 3 20
Diffie-Hellman Diffie-Hellman Starter 2 20
Diffie-Hellman Diffie-Hellman Starter 1 10
Elliptic Curves Background Reading 5
Mathematics Modular Square Root 35
Hash Functions Jack's Birthday Hash 20
RSA Crossed Wires 100
RSA Everything is Big 70
RSA Modulus Inutilis 50
RSA Salty 20
RSA Manyprime 40
RSA Square Eyes 35
RSA Monoprime 30
RSA RSA Starter 6 25
RSA Inferius Prime 30
RSA Factoring 15
Mathematics Legendre Symbol 35
Crypto on the Web TLS Handshake 15
Crypto on the Web Sharks on the Wire 10
RSA RSA Starter 5 20
RSA RSA Starter 4 20
Symmetric Ciphers Modes of Operation Starter 15
Mathematics Gaussian Reduction 50
Mathematics What's a Lattice? 40
Mathematics Gram Schmidt 30
Crypto on the Web Secure Protocols 5
Crypto on the Web No Way JOSE 20
Crypto on the Web JWT Sessions 10
Crypto on the Web Token Appreciation 5
Mathematics Size and Basis 15
Mathematics Vectors 10
Mathematics Quadratic Residues 25
General SSH Keys 35
General Transparency 50
RSA RSA Starter 3 20
RSA RSA Starter 2 15
RSA RSA Starter 1 10
Symmetric Ciphers Resisting Bruteforce 10
Symmetric Ciphers Keyed Permutations 5
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
General Greatest Common Divisor 15
General Lemur XOR 40
General You either know, XOR you don't 30
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 Network Attacks 5
Introduction Great Snakes 3
Introduction Finding Flags 2

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