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Submitted Solutions

Gotta Go Fast 0
Bruce Schneier's Password 0
JSON in JSON 0
RSA or HMAC? 0
No Leaks 0
Stream of Consciousness 0
Export-grade 0
Efficient Exchange 0
Jack's Birthday Hash 0
Parameter Injection 0
Blinding Light 0
Signing Server 0
Marin's Secrets 0
Crossed Wires 0

Solved Challenges

Lattices Vectors 10
Misc Gotta Go Fast 40
Misc Bruce Schneier's Password 100
Crypto on the Web JSON in JSON 40
Crypto on the Web RSA or HMAC? 35
Misc No Leaks 100
Symmetric Ciphers Stream of Consciousness 80
Diffie-Hellman Export-grade 100
Elliptic Curves Efficient Exchange 50
Hash Functions Jack's Birthday Hash 20
Diffie-Hellman Parameter Injection 60
RSA Blinding Light 120
RSA Signing Server 60
RSA Marin's Secrets 50
RSA Everything is Still Big 100
RSA Crossed Wires 100
Crypto on the Web Decrypting TLS 1.3 35
Crypto on the Web Decrypting TLS 1.2 30
Crypto on the Web Saying Hello 20
Crypto on the Web TLS Handshake 15
Crypto on the Web Sharks on the Wire 10
Crypto on the Web Secure Protocols 5
Crypto on the Web JWT Secrets 25
Crypto on the Web No Way JOSE 20
Crypto on the Web JWT Sessions 10
RSA Everything is Big 70
RSA Inferius Prime 30
Symmetric Ciphers CTRIME 70
Symmetric Ciphers Bean Counter 60
Symmetric Ciphers Symmetry 50
Symmetric Ciphers ECB CBC WTF 55
Symmetric Ciphers Lazy CBC 60
Symmetric Ciphers Flipping Cookie 60
Symmetric Ciphers ECB Oracle 60
Elliptic Curves Curves and Logs 40
Elliptic Curves Background Reading 5
Elliptic Curves Scalar Multiplication 35
Elliptic Curves Point Addition 30
Elliptic Curves Point Negation 10
Symmetric Ciphers Passwords as Keys 50
Symmetric Ciphers Modes of Operation Starter 15
Mathematics Adrien's Signs 80
Symmetric Ciphers Bringing It All Together 50
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
Diffie-Hellman Deriving Symmetric Keys 40
Diffie-Hellman Computing Shared Secrets 30
Diffie-Hellman Computing Public Values 25
Diffie-Hellman Generators of Groups 20
RSA Square Eyes 35
Diffie-Hellman Working with Fields 10
RSA Modulus Inutilis 50
RSA Salty 20
RSA Manyprime 40
RSA Monoprime 30
RSA Factoring 15
RSA RSA Signatures 25
RSA RSA Decryption 20
RSA Private Keys 20
RSA Euler's Totient 20
RSA Public Keys 15
Mathematics Modular Binomials 80
General Transparency 50
General CERTainly not 30
General SSH Keys 35
General Privacy-Enhanced Mail? 25
General Encoding Challenge 40
Mathematics Chinese Remainder Theorem 40
Mathematics Modular Square Root 35
RSA Modular Exponentiation 10
General Lemur XOR 40
Crypto on the Web Token Appreciation 5
Introduction Network Attacks 5
Mathematics Legendre Symbol 35
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 You either know, XOR you don't 30
General Favourite byte 20
General XOR Properties 15
General XOR Starter 10
General Bytes and Big Integers 10
General Base64 10
General Hex 5
General ASCII 5
Introduction Great Snakes 3
Introduction Finding Flags 2

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