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Solved Challenges

Hash Functions No Difference 175
Hash Functions PriMeD5 100
Hash Functions Hash Stuffing 50
Misc L-Win 120
Diffie-Hellman The Matrix Reloaded 100
Hash Functions Collider 50
Elliptic Curves Real Curve Crypto 200
Misc Lo-Hi Card Game 120
Misc RSA vs RNG 150
Elliptic Curves No Random, No Bias 120
Elliptic Curves Moving Problems 150
Elliptic Curves Edwards Goes Degenerate 100
Elliptic Curves Digestive 60
Elliptic Curves ProSign 3 100
Elliptic Curves Curveball 100
Mathematics Prime and Prejudice 200
Post-Quantum Noise Cheap 90
Post-Quantum Missing Modulus 80
Crypto on the Web RSA or HMAC? 35
Crypto on the Web JSON in JSON 40
Post-Quantum Nativity 60
Elliptic Curves Elliptic Nodes 150
Elliptic Curves Micro Transmissions 120
Elliptic Curves Exceptional Curves 100
Elliptic Curves Smooth Criminal 60
Post-Quantum Noise Free 40
Post-Quantum From Private to Public Key LWE 25
Post-Quantum LWE Low Bits Message 20
Post-Quantum LWE High Bits Message 15
Post-Quantum LWE Intro 10
Post-Quantum Too Many Errors 100
Hash Functions Jack's Birthday Confusion 30
Post-Quantum LWE Background 5
Hash Functions Jack's Birthday Hash 20
Misc Armory 100
Misc Bit by Bit 100
Mathematics Cofactor Cofantasy 150
Symmetric Ciphers Bean Counter 60
Crypto on the Web JWT Secrets 25
Crypto on the Web No Way JOSE 20
Misc No Leaks 100
Symmetric Ciphers CTRIME 70
Diffie-Hellman Static Client 2 120
Diffie-Hellman The Matrix 75
Diffie-Hellman Script Kiddie 70
Misc Gotta Go Fast 40
Symmetric Ciphers Symmetry 50
Symmetric Ciphers ECB CBC WTF 55
RSA Vote for Pedro 150
RSA Blinding Light 120
Mathematics Roll your Own 125
Diffie-Hellman Static Client 100
RSA Bespoke Padding 100
RSA Let's Decrypt 80
Mathematics Real Eisenstein 150
Mathematics Ellipse Curve Cryptography 125
RSA Signing Server 60
Mathematics Backpack Cryptography 120
RSA Null or Never 100
Symmetric Ciphers Triple DES 60
Mathematics No Way Back Home 100
Symmetric Ciphers Lazy CBC 60
Symmetric Ciphers Flipping Cookie 60
Crypto on the Web JWT Sessions 10
Crypto on the Web Token Appreciation 5
Symmetric Ciphers ECB Oracle 60
Diffie-Hellman Additive 70
Diffie-Hellman Export-grade 100
Diffie-Hellman Parameter Injection 60
Mathematics Broken RSA 100
RSA Ron was Wrong, Whit is Right 90
RSA Endless Emails 150
RSA Fast Primes 75
General Transparency 50
General SSH Keys 35
General CERTainly not 30
Mathematics Unencryptable 125
General Privacy-Enhanced Mail? 25
Symmetric Ciphers Passwords as Keys 50
Symmetric Ciphers Modes of Operation Starter 15
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
General Lemur XOR 40
Mathematics Find the Lattice 100
Diffie-Hellman Diffie-Hellman Starter 5 40
RSA RSA Backdoor Viability 175
RSA Infinite Descent 50
RSA Marin's Secrets 50
RSA Everything is Still Big 100
RSA Crossed Wires 100
General Encoding Challenge 40
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
RSA Modulus Inutilis 50
Mathematics Modular Binomials 80
Mathematics Modular Square Root 35
Elliptic Curves Background Reading 5
RSA Everything is Big 70
RSA Salty 20
RSA Square Eyes 35
RSA Manyprime 40
RSA Inferius Prime 30
RSA Monoprime 30
RSA RSA Starter 6 25
RSA Factoring 15
RSA RSA Starter 5 20
RSA RSA Starter 2 15
RSA RSA Starter 4 20
RSA RSA Starter 3 20
Diffie-Hellman Diffie-Hellman Starter 2 20
Mathematics Successive Powers 60
Introduction Network Attacks 5
General Bytes and Big Integers 10
RSA RSA Starter 1 10
Symmetric Ciphers Resisting Bruteforce 10
Mathematics Gaussian Reduction 50
Diffie-Hellman Diffie-Hellman Starter 4 30
Mathematics What's a Lattice? 40
Diffie-Hellman Diffie-Hellman Starter 3 20
Diffie-Hellman Diffie-Hellman Starter 1 10
Mathematics Gram Schmidt 30
Mathematics Size and Basis 15
Mathematics Adrien's Signs 80
Mathematics Vectors 10
Symmetric Ciphers Keyed Permutations 5
Mathematics Chinese Remainder Theorem 40
General Extended GCD 20
General You either know, XOR you don't 30
Mathematics Legendre Symbol 35
Mathematics Quadratic Residues 25
General Favourite byte 20
General Modular Inverting 25
General Modular Arithmetic 2 20
General Modular Arithmetic 1 20
General Greatest Common Divisor 15
General XOR Properties 15
General XOR Starter 10
General Base64 10
General Hex 5
General ASCII 5
Introduction Great Snakes 3
Introduction Finding Flags 2

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