LJian

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Solved Challenges

Elliptic Curves Moving Problems 150
Elliptic Curves Elliptic Nodes 150
Elliptic Curves Micro Transmissions 120
Elliptic Curves ProSign 3 100
Elliptic Curves Curveball 100
Elliptic Curves Montgomery's Ladder 40
Elliptic Curves Scalar Multiplication 35
Elliptic Curves Exceptional Curves 100
Elliptic Curves Smooth Criminal 60
Elliptic Curves Efficient Exchange 50
Elliptic Curves Curves and Logs 40
Elliptic Curves Point Addition 30
Elliptic Curves Point Negation 10
RSA Infinite Descent 50
Symmetric Ciphers CTRIME 70
Symmetric Ciphers Bean Counter 60
Symmetric Ciphers Symmetry 50
Symmetric Ciphers Lazy CBC 60
Symmetric Ciphers Flipping Cookie 60
Symmetric Ciphers ECB CBC WTF 55
Symmetric Ciphers ECB Oracle 60
Mathematics Backpack Cryptography 120
Mathematics Find the Lattice 100
Symmetric Ciphers Passwords as Keys 50
Symmetric Ciphers Modes of Operation Starter 15
Symmetric Ciphers Bringing It All Together 50
Symmetric Ciphers Diffusion through Permutation 30
Symmetric Ciphers Confusion through Substitution 25
Symmetric Ciphers Round Keys 20
Symmetric Ciphers Structure of AES 15
Mathematics Gaussian Reduction 50
Mathematics Cofactor Cofantasy 150
Misc Gotta Go Fast 40
Mathematics Unencryptable 125
Mathematics Ellipse Curve Cryptography 125
Symmetric Ciphers Resisting Bruteforce 10
Elliptic Curves Background Reading 5
Mathematics Prime and Prejudice 200
Mathematics Roll your Own 125
General Transparency 50
General SSH Keys 35
General CERTainly not 30
General Privacy-Enhanced Mail? 25
RSA Everything is Still Big 100
RSA Crossed Wires 100
RSA Everything is Big 70
RSA Modulus Inutilis 50
RSA Salty 20
RSA Manyprime 40
RSA Square Eyes 35
RSA Monoprime 30
RSA Inferius Prime 30
RSA Factoring 15
RSA RSA Starter 6 25
Mathematics Broken RSA 100
Mathematics What's a Lattice? 40
Mathematics Gram Schmidt 30
Diffie-Hellman Export-grade 100
Diffie-Hellman Additive 70
Diffie-Hellman Static Client 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
Diffie-Hellman Diffie-Hellman Starter 2 20
Diffie-Hellman Diffie-Hellman Starter 1 10
General Encoding Challenge 40
Mathematics Chinese Remainder Theorem 40
Mathematics Size and Basis 15
General Modular Inverting 25
General Modular Arithmetic 2 20
General Modular Arithmetic 1 20
General Extended GCD 20
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 Keyed Permutations 5
Mathematics Modular Binomials 80
Mathematics Modular Square Root 35
Mathematics Legendre Symbol 35
Mathematics Quadratic Residues 25
Mathematics Adrien's Signs 80
Mathematics Successive Powers 60
Hash Functions Jack's Birthday Confusion 30
Hash Functions Jack's Birthday Hash 20
Mathematics Vectors 10
General Greatest Common Divisor 15
General Lemur XOR 40
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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