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Solved Challenges

General Lemur XOR 40
General Transparency 50
Hash Functions Jack's Birthday Hash 20
Hash Functions Jack's Birthday Confusion 30
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
Hash Functions MD0 80
Mathematics Unencryptable 125
RSA Let's Decrypt 80
Diffie-Hellman Static Client 100
Mathematics Broken RSA 100
Elliptic Curves Curveball 100
Mathematics Adrien's Signs 80
Symmetric Ciphers Bringing It All Together 50
Elliptic Curves Moving Problems 150
Elliptic Curves Exceptional Curves 100
RSA Vote for Pedro 150
RSA Blinding Light 120
RSA Ron was Wrong, Whit is Right 90
Mathematics Find the Lattice 100
RSA Fast Primes 75
Misc Armory 100
Mathematics Gaussian Reduction 50
Mathematics Modular Binomials 80
Symmetric Ciphers Stream of Consciousness 80
Symmetric Ciphers CTRIME 70
Symmetric Ciphers Bean Counter 60
Symmetric Ciphers Lazy CBC 60
Mathematics Modular Square Root 35
Diffie-Hellman Script Kiddie 70
Diffie-Hellman Additive 70
Diffie-Hellman Export-grade 100
Diffie-Hellman Parameter Injection 60
Symmetric Ciphers Symmetry 50
Symmetric Ciphers Flipping Cookie 60
Symmetric Ciphers ECB CBC WTF 55
Symmetric Ciphers Diffusion through Permutation 30
RSA Crossed Wires 100
RSA Signing Server 60
RSA RSA Starter 6 25
RSA Everything is Still Big 100
Hash Functions Collider 50
RSA Marin's Secrets 50
RSA Infinite Descent 50
Elliptic Curves Efficient Exchange 50
Mathematics What's a Lattice? 40
Mathematics Gram Schmidt 30
Mathematics Size and Basis 15
Mathematics Vectors 10
Mathematics Legendre Symbol 35
Elliptic Curves Smooth Criminal 60
RSA Everything is Big 70
RSA Modulus Inutilis 50
RSA Salty 20
Misc No Leaks 100
Symmetric Ciphers Confusion through Substitution 25
Symmetric Ciphers Round Keys 20
Symmetric Ciphers Structure of AES 15
Elliptic Curves Curves and Logs 40
Elliptic Curves Scalar Multiplication 35
Mathematics Successive Powers 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
General CERTainly not 30
General Privacy-Enhanced Mail? 25
Elliptic Curves Point Addition 30
Elliptic Curves Point Negation 10
Elliptic Curves Background Reading 5
Symmetric Ciphers Resisting Bruteforce 10
Symmetric Ciphers Keyed Permutations 5
Misc Gotta Go Fast 40
Mathematics Quadratic Residues 25
General XOR Properties 15
RSA Manyprime 40
RSA Monoprime 30
RSA Square Eyes 35
Symmetric Ciphers Passwords as Keys 50
General Encoding Challenge 40
General Extended GCD 20
General Greatest Common Divisor 15
Diffie-Hellman Diffie-Hellman Starter 1 10
RSA Inferius Prime 30
RSA RSA Starter 1 10
RSA RSA Starter 5 20
RSA RSA Starter 4 20
RSA RSA Starter 3 20
RSA RSA Starter 2 15
Symmetric Ciphers Modes of Operation Starter 15
General You either know, XOR you don't 30
Mathematics Chinese Remainder Theorem 40
General Modular Inverting 25
General Modular Arithmetic 2 20
General Modular Arithmetic 1 20
RSA Factoring 15
General Favourite byte 20
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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