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Solved Challenges

Misc Bit by Bit 100
Crypto on the Web Secure Protocols 5
Symmetric Ciphers Stream of Consciousness 80
Symmetric Ciphers Logon Zero 80
Symmetric Ciphers CTRIME 70
Symmetric Ciphers Symmetry 50
RSA RSA Starter 6 25
Hash Functions Mixed Up 120
Hash Functions MDFlag 125
Hash Functions MD0 80
Symmetric Ciphers Bean Counter 60
Symmetric Ciphers ECB CBC WTF 55
Symmetric Ciphers Passwords as Keys 50
RSA Null or Never 100
Post-Quantum LWE Background 5
Crypto on the Web JWT Secrets 25
Crypto on the Web No Way JOSE 20
Elliptic Curves Digestive 60
Hash Functions No Difference 175
Hash Functions Twin Keys 100
Hash Functions PriMeD5 100
Hash Functions Collider 50
Crypto on the Web JWT Sessions 10
Mathematics Roll your Own 125
Mathematics No Way Back Home 100
Mathematics Successive Powers 60
Elliptic Curves Micro Transmissions 120
Elliptic Curves Exceptional Curves 100
Elliptic Curves Smooth Criminal 60
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 Background Reading 5
Symmetric Ciphers Modes of Operation Starter 15
Symmetric Ciphers Bringing It All Together 50
Symmetric Ciphers Diffusion through Permutation 30
Misc Lo-Hi Card Game 120
Symmetric Ciphers Resisting Bruteforce 10
Symmetric Ciphers Keyed Permutations 5
Misc No Leaks 100
Misc Gotta Go Fast 40
Symmetric Ciphers Confusion through Substitution 25
Symmetric Ciphers Round Keys 20
Symmetric Ciphers Structure of AES 15
RSA Factoring 15
Diffie-Hellman Diffie-Hellman Starter 2 20
Mathematics Find the Lattice 100
Mathematics Gaussian Reduction 50
Mathematics Gram Schmidt 30
Mathematics Size and Basis 15
Mathematics Vectors 10
Hash Functions Jack's Birthday Hash 20
Crypto on the Web Token Appreciation 5
Crypto on the Web JSON in JSON 40
Diffie-Hellman The Matrix Revolutions 125
Diffie-Hellman The Matrix Reloaded 100
RSA Vote for Pedro 150
RSA Blinding Light 120
RSA Let's Decrypt 80
RSA Signing Server 60
RSA RSA Backdoor Viability 175
RSA Ron was Wrong, Whit is Right 90
RSA Fast Primes 75
RSA Marin's Secrets 50
RSA Infinite Descent 50
RSA Everything is Still Big 100
RSA Crossed Wires 100
RSA Everything is Big 70
RSA Modulus Inutilis 50
RSA Salty 20
RSA Square Eyes 35
RSA Monoprime 30
RSA Inferius Prime 30
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
Diffie-Hellman Script Kiddie 70
Diffie-Hellman Static Client 2 120
Diffie-Hellman Additive 70
Diffie-Hellman Static Client 100
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
Diffie-Hellman Diffie-Hellman Starter 1 10
Mathematics Modular Square Root 35
Mathematics Modular Binomials 80
Mathematics Adrien's Signs 80
Mathematics Legendre Symbol 35
Mathematics Quadratic Residues 25
General Transparency 50
General SSH Keys 35
General CERTainly not 30
General Privacy-Enhanced Mail? 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 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 Encoding Challenge 40
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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