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Solved Challenges

Diffie-Hellman Static Client 2 120
Lattices Gaussian Reduction 50
Lattices Gram Schmidt 30
Elliptic Curves Smooth Criminal 60
Symmetric Ciphers Paper Plane 120
Symmetric Ciphers Dancing Queen 120
Symmetric Ciphers Oh SNAP 120
Symmetric Ciphers Triple DES 60
Symmetric Ciphers Logon Zero 80
Symmetric Ciphers The Good, The Pad, The Ugly 100
Symmetric Ciphers Pad Thai 80
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
RSA Signing Server 60
RSA Marin's Secrets 50
RSA Infinite Descent 50
RSA Everything is Still Big 100
RSA Crossed Wires 100
Symmetric Ciphers Lazy CBC 60
Symmetric Ciphers Flipping Cookie 60
Symmetric Ciphers Stream of Consciousness 80
Symmetric Ciphers CTRIME 70
Symmetric Ciphers Bringing It All Together 50
Misc No Leaks 100
Symmetric Ciphers Bean Counter 60
Diffie-Hellman Additive 70
Diffie-Hellman Script Kiddie 70
Diffie-Hellman Static Client 100
Elliptic Curves Background Reading 5
Lattices What's a Lattice? 40
Mathematics Unencryptable 125
RSA Everything is Big 70
Diffie-Hellman Export-grade 100
Diffie-Hellman Parameter Injection 60
Symmetric Ciphers Diffusion through Permutation 30
Hash Functions MD0 80
Hash Functions Jack's Birthday Confusion 30
Lattices Size and Basis 15
Lattices Vectors 10
Misc Gotta Go Fast 40
Crypto on the Web Decrypting TLS 1.3 35
Crypto on the Web Decrypting TLS 1.2 30
Symmetric Ciphers Symmetry 50
Mathematics Modular Binomials 80
Symmetric Ciphers ECB Oracle 60
Crypto on the Web Saying Hello 20
Symmetric Ciphers ECB CBC WTF 55
Symmetric Ciphers Passwords as Keys 50
Symmetric Ciphers Modes of Operation Starter 15
Symmetric Ciphers Confusion through Substitution 25
Symmetric Ciphers Round Keys 20
Diffie-Hellman Generators of Groups 20
Hash Functions Collider 50
Mathematics Successive Powers 60
Symmetric Ciphers Structure of AES 15
Symmetric Ciphers Resisting Bruteforce 10
Crypto on the Web RSA or HMAC? Part 2 100
Crypto on the Web TLS Handshake 15
RSA Salty 20
RSA Modulus Inutilis 50
Crypto on the Web RSA or HMAC? 35
Crypto on the Web Sharks on the Wire 10
Crypto on the Web Secure Protocols 5
Crypto on the Web JSON in JSON 40
Hash Functions Jack's Birthday Hash 20
Diffie-Hellman Deriving Symmetric Keys 40
Diffie-Hellman Computing Shared Secrets 30
RSA Square Eyes 35
RSA Manyprime 40
RSA Monoprime 30
RSA Inferius Prime 30
Crypto on the Web JWT Secrets 25
General Lemur XOR 40
Crypto on the Web No Way JOSE 20
Crypto on the Web JWT Sessions 10
Crypto on the Web Token Appreciation 5
Diffie-Hellman Computing Public Values 25
Diffie-Hellman Working with Fields 10
RSA Factoring 15
RSA RSA Signatures 25
RSA RSA Decryption 20
General Transparency 50
General CERTainly not 30
RSA Euler's Totient 20
RSA Private Keys 20
RSA Public Keys 15
RSA Modular Exponentiation 10
General SSH Keys 35
General Privacy-Enhanced Mail? 25
Symmetric Ciphers Keyed Permutations 5
Mathematics Adrien's Signs 80
Mathematics Chinese Remainder Theorem 40
Mathematics Modular Square Root 35
Mathematics Legendre Symbol 35
General Encoding Challenge 40
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 Network Attacks 5
Introduction Great Snakes 3
Introduction Finding Flags 2

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