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Submitted Solutions

Montgomery's Ladder 0
Null or Never 1

Solved Challenges

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
Diffie-Hellman Static Client 2 120
Diffie-Hellman Static Client 100
Elliptic Curves Smooth Criminal 60
Elliptic Curves Montgomery's Ladder 40
Mathematics Modular Binomials 80
Mathematics Adrien's Signs 80
Diffie-Hellman Script Kiddie 70
RSA Fast Primes 75
RSA Null or Never 100
RSA Ron was Wrong, Whit is Right 90
Symmetric Ciphers Logon Zero 80
RSA Signing Server 60
Crypto on the Web JSON in JSON 40
Mathematics Broken RSA 100
Crypto on the Web RSA or HMAC? 35
RSA Marin's Secrets 50
RSA Infinite Descent 50
RSA Endless Emails 150
RSA Crossed Wires 100
Symmetric Ciphers Stream of Consciousness 80
Symmetric Ciphers Lazy CBC 60
Symmetric Ciphers CTRIME 70
RSA Everything is Still Big 100
RSA Everything is Big 70
RSA Modulus Inutilis 50
Symmetric Ciphers Triple DES 60
Symmetric Ciphers Bean Counter 60
Symmetric Ciphers Symmetry 50
Symmetric Ciphers Flipping Cookie 60
Symmetric Ciphers ECB Oracle 60
Symmetric Ciphers ECB CBC WTF 55
Symmetric Ciphers Bringing It All Together 50
Symmetric Ciphers Passwords as Keys 50
Symmetric Ciphers Modes of Operation Starter 15
Diffie-Hellman Export-grade 100
Diffie-Hellman Additive 70
Diffie-Hellman Parameter Injection 60
Diffie-Hellman Computing Public Values 25
Diffie-Hellman Deriving Symmetric Keys 40
Diffie-Hellman Computing Shared Secrets 30
Diffie-Hellman Generators of Groups 20
Hash Functions Collider 50
Misc No Leaks 100
Crypto on the Web No Way JOSE 20
Crypto on the Web JWT Secrets 25
Crypto on the Web JWT Sessions 10
Crypto on the Web Token Appreciation 5
Misc Gotta Go Fast 40
Hash Functions Jack's Birthday Hash 20
General Transparency 50
General SSH Keys 35
Hash Functions Jack's Birthday Confusion 30
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
General Lemur XOR 40
RSA Salty 20
Symmetric Ciphers Diffusion through Permutation 30
Symmetric Ciphers Confusion through Substitution 25
Symmetric Ciphers Round Keys 20
Symmetric Ciphers Structure of AES 15
Mathematics Successive Powers 60
Mathematics Chinese Remainder Theorem 40
Mathematics Legendre Symbol 35
Mathematics Modular Square Root 35
Lattices Gaussian Reduction 50
Lattices What's a Lattice? 40
Lattices Gram Schmidt 30
Lattices Size and Basis 15
Lattices Vectors 10
Elliptic Curves Background Reading 5
RSA Manyprime 40
RSA Square Eyes 35
RSA Monoprime 30
RSA Inferius Prime 30
General Encoding Challenge 40
Diffie-Hellman Working with Fields 10
Symmetric Ciphers Resisting Bruteforce 10
RSA Factoring 15
RSA RSA Signatures 25
RSA RSA Decryption 20
RSA Private Keys 20
RSA Euler's Totient 20
RSA Public Keys 15
RSA Modular Exponentiation 10
General Modular Inverting 25
Mathematics Quadratic Residues 25
General Modular Arithmetic 2 20
Introduction Network Attacks 5
General CERTainly not 30
General Privacy-Enhanced Mail? 25
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 Bytes and Big Integers 10
General XOR Starter 10
General Base64 10
General Hex 5
General ASCII 5
Symmetric Ciphers Keyed Permutations 5
Introduction Great Snakes 3
Introduction Finding Flags 2

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