samurai2020

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Solved Challenges

Post-Quantum LWE Intro 10
Post-Quantum LWE Background 5
Crypto on the Web Authenticated Handshake 40
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
Mathematics Adrien's Signs 80
Elliptic Curves Double and Broken 50
General SSH Keys 35
Mathematics Broken RSA 100
Hash Functions Jack's Birthday Confusion 30
Hash Functions Jack's Birthday Hash 20
General Lemur XOR 40
Mathematics Successive Powers 60
Mathematics Gaussian Reduction 50
Mathematics Gram Schmidt 30
Mathematics What's a Lattice? 40
Elliptic Curves Exceptional Curves 100
Elliptic Curves Point Negation 10
Elliptic Curves Smooth Criminal 60
Diffie-Hellman Script Kiddie 70
Diffie-Hellman Additive 70
RSA Ron was Wrong, Whit is Right 90
RSA Endless Emails 150
Crypto on the Web JSON in JSON 40
RSA Vote for Pedro 150
RSA Blinding Light 120
RSA Signing Server 60
Hash Functions Twin Keys 100
Hash Functions PriMeD5 100
Misc Bruce Schneier's Password 100
Hash Functions MD0 80
Hash Functions Collider 50
Misc No Leaks 100
Misc Gotta Go Fast 40
Elliptic Curves Efficient Exchange 50
Elliptic Curves Curves and Logs 40
Elliptic Curves Scalar Multiplication 35
Elliptic Curves Point Addition 30
RSA Marin's Secrets 50
RSA Infinite Descent 50
Symmetric Ciphers Paper Plane 120
General Transparency 50
Symmetric Ciphers Bringing It All Together 50
Symmetric Ciphers Diffusion through Permutation 30
Symmetric Ciphers Confusion through Substitution 25
Symmetric Ciphers Oh SNAP 120
Symmetric Ciphers Logon Zero 80
Diffie-Hellman Export-grade 100
Elliptic Curves Background Reading 5
Diffie-Hellman Parameter Injection 60
Symmetric Ciphers Bean Counter 60
Symmetric Ciphers Triple DES 60
Symmetric Ciphers Passwords as Keys 50
Symmetric Ciphers Stream of Consciousness 80
Symmetric Ciphers CTRIME 70
Symmetric Ciphers Flipping Cookie 60
Symmetric Ciphers Symmetry 50
Symmetric Ciphers Lazy CBC 60
Symmetric Ciphers ECB CBC WTF 55
Mathematics Size and Basis 15
Mathematics Vectors 10
RSA Everything is Big 70
RSA Everything is Still Big 100
RSA Crossed Wires 100
Symmetric Ciphers ECB Oracle 60
Diffie-Hellman Diffie-Hellman Starter 5 40
Diffie-Hellman Diffie-Hellman Starter 4 30
Diffie-Hellman Diffie-Hellman Starter 2 20
Diffie-Hellman Diffie-Hellman Starter 3 20
Mathematics Legendre Symbol 35
Mathematics Quadratic Residues 25
Mathematics Chinese Remainder Theorem 40
Mathematics Modular Square Root 35
RSA Modulus Inutilis 50
RSA Salty 20
RSA Manyprime 40
RSA Square Eyes 35
RSA Inferius Prime 30
RSA Monoprime 30
RSA Factoring 15
RSA RSA Starter 6 25
Symmetric Ciphers Round Keys 20
Symmetric Ciphers Structure of AES 15
Diffie-Hellman Diffie-Hellman Starter 1 10
General You either know, XOR you don't 30
General Favourite byte 20
General XOR Properties 15
General Encoding Challenge 40
Crypto on the Web RSA or HMAC? 35
Symmetric Ciphers Keyed Permutations 5
General CERTainly not 30
General Privacy-Enhanced Mail? 25
General XOR Starter 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
General Modular Inverting 25
General Modular Arithmetic 2 20
General Modular Arithmetic 1 20
General Extended GCD 20
General Greatest Common Divisor 15
General Bytes and Big Integers 10
General Base64 10
General Hex 5
General ASCII 5
Symmetric Ciphers Modes of Operation Starter 15
Symmetric Ciphers Resisting Bruteforce 10
Introduction Network Attacks 5
Introduction Great Snakes 3
Introduction Finding Flags 2
RSA RSA Starter 5 20
RSA RSA Starter 4 20
RSA RSA Starter 2 15
RSA RSA Starter 1 10
RSA RSA Starter 3 20

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