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Submitted Solutions

Signing Server 0
Gotta Go Fast 1

Solved Challenges

RSA Signing Server 60
Mathematics Broken RSA 100
Mathematics Backpack Cryptography 120
RSA Bespoke Padding 100
RSA Ron was Wrong, Whit is Right 90
RSA Null or Never 100
Symmetric Ciphers ECB Oracle 60
Symmetric Ciphers Bringing It All Together 50
Symmetric Ciphers Diffusion through Permutation 30
Elliptic Curves Elliptic Nodes 150
Mathematics What's a Lattice? 40
Mathematics Gram Schmidt 30
RSA Endless Emails 150
Mathematics Gaussian Reduction 50
Misc No Leaks 100
Misc Gotta Go Fast 40
Mathematics Size and Basis 15
Mathematics Vectors 10
Hash Functions Collider 50
Crypto on the Web RSA or HMAC? Part 2 100
General SSH Keys 35
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
Elliptic Curves Smooth Criminal 60
RSA Marin's Secrets 50
RSA Infinite Descent 50
RSA Crossed Wires 100
RSA Everything is Still Big 100
Symmetric Ciphers Passwords as Keys 50
Symmetric Ciphers Modes of Operation Starter 15
Hash Functions Jack's Birthday Confusion 30
Hash Functions Jack's Birthday Hash 20
General Privacy-Enhanced Mail? 25
General CERTainly not 30
General Transparency 50
Diffie-Hellman Export-grade 100
Introduction Network Attacks 5
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
Diffie-Hellman Diffie-Hellman Starter 2 20
Diffie-Hellman Diffie-Hellman Starter 1 10
RSA Everything is Big 70
RSA RSA Starter 6 25
Mathematics Modular Binomials 80
RSA Square Eyes 35
Mathematics Legendre Symbol 35
Mathematics Modular Square Root 35
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
Mathematics Chinese Remainder Theorem 40
Mathematics Quadratic Residues 25
RSA Modulus Inutilis 50
RSA Salty 20
RSA Manyprime 40
RSA Monoprime 30
RSA Inferius Prime 30
RSA Factoring 15
RSA RSA Starter 5 20
RSA RSA Starter 4 20
RSA RSA Starter 3 20
Elliptic Curves Background Reading 5
General Modular Inverting 25
General Modular Arithmetic 2 20
General XOR Properties 15
Symmetric Ciphers Confusion through Substitution 25
Symmetric Ciphers Round Keys 20
RSA RSA Starter 2 15
RSA RSA Starter 1 10
General Lemur XOR 40
General Encoding Challenge 40
General Bytes and Big Integers 10
General Modular Arithmetic 1 20
General Extended GCD 20
General Greatest Common Divisor 15
General Base64 10
General Hex 5
General ASCII 5
Symmetric Ciphers Structure of AES 15
Symmetric Ciphers Resisting Bruteforce 10
Symmetric Ciphers Keyed Permutations 5
General You either know, XOR you don't 30
General Favourite byte 20
General XOR Starter 10
Introduction Great Snakes 3
Introduction Finding Flags 2

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