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Submitted Solutions

Script Kiddie 3
RSA or HMAC? Part 2 0

Solved Challenges

Mathematics Prime and Prejudice 200
Symmetric Ciphers Stream of Consciousness 80
Symmetric Ciphers Logon Zero 80
Mathematics Unencryptable 125
Symmetric Ciphers Paper Plane 120
Diffie-Hellman Additive 70
RSA Blinding Light 120
RSA Let's Decrypt 80
RSA Ron was Wrong, Whit is Right 90
Symmetric Ciphers Triple DES 60
Mathematics Gaussian Reduction 50
Diffie-Hellman Script Kiddie 70
Diffie-Hellman Static Client 100
Elliptic Curves Moving Problems 150
Elliptic Curves ProSign 3 100
Mathematics What's a Lattice? 40
Elliptic Curves Curveball 100
Mathematics Gram Schmidt 30
Hash Functions MD0 80
Mathematics Size and Basis 15
Mathematics Vectors 10
Mathematics No Way Back Home 100
RSA Fast Primes 75
Elliptic Curves Smooth Criminal 60
Elliptic Curves Montgomery's Ladder 40
Hash Functions Jack's Birthday Hash 20
Hash Functions Jack's Birthday Confusion 30
Hash Functions Collider 50
Symmetric Ciphers Lazy CBC 60
RSA Endless Emails 150
Misc No Leaks 100
RSA Everything is Still Big 100
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
Misc Gotta Go Fast 40
Crypto on the Web RSA or HMAC? Part 2 100
RSA Signing Server 60
Crypto on the Web JSON in JSON 40
Crypto on the Web RSA or HMAC? 35
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
Elliptic Curves Efficient Exchange 50
Elliptic Curves Curves and Logs 40
Elliptic Curves Scalar Multiplication 35
Elliptic Curves Point Addition 30
Symmetric Ciphers Bean Counter 60
Symmetric Ciphers Symmetry 50
Symmetric Ciphers Flipping Cookie 60
Symmetric Ciphers ECB CBC WTF 55
Symmetric Ciphers ECB Oracle 60
Symmetric Ciphers Passwords as Keys 50
Symmetric Ciphers Modes of Operation Starter 15
Symmetric Ciphers Bringing It All Together 50
General Transparency 50
General SSH Keys 35
General CERTainly not 30
General Privacy-Enhanced Mail? 25
Mathematics Broken RSA 100
Mathematics Successive Powers 60
RSA Marin's Secrets 50
RSA Infinite Descent 50
RSA Bespoke Padding 100
General Lemur XOR 40
General Encoding Challenge 40
Introduction Network Attacks 5
RSA Crossed Wires 100
Symmetric Ciphers Diffusion through Permutation 30
Symmetric Ciphers Confusion through Substitution 25
Symmetric Ciphers Round Keys 20
Symmetric Ciphers Structure of AES 15
RSA Everything is Big 70
Elliptic Curves Point Negation 10
Elliptic Curves Background Reading 5
Diffie-Hellman Export-grade 100
Diffie-Hellman Parameter Injection 60
Diffie-Hellman Diffie-Hellman Starter 5 40
Diffie-Hellman Diffie-Hellman Starter 4 30
Diffie-Hellman Diffie-Hellman Starter 3 20
RSA Square Eyes 35
RSA Inferius Prime 30
Diffie-Hellman Diffie-Hellman Starter 2 20
Diffie-Hellman Diffie-Hellman Starter 1 10
RSA Modulus Inutilis 50
RSA Salty 20
RSA Manyprime 40
RSA Monoprime 30
RSA Factoring 15
RSA RSA Starter 6 25
RSA RSA Starter 5 20
RSA RSA Starter 4 20
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
Mathematics Modular Binomials 80
Mathematics Adrien's Signs 80
Mathematics Chinese Remainder Theorem 40
Mathematics Modular Square Root 35
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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