H4i7h3m

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Solved Challenges

Diffie-Hellman The Matrix Reloaded 100
Mathematics Roll your Own 125
Mathematics No Way Back Home 100
Mathematics Cofactor Cofantasy 150
Diffie-Hellman The Matrix 75
RSA Vote for Pedro 150
Symmetric Ciphers Triple DES 60
Symmetric Ciphers Bean Counter 60
Misc Bit by Bit 100
RSA Blinding Light 120
RSA Let's Decrypt 80
RSA RSA Backdoor Viability 175
RSA Ron was Wrong, Whit is Right 90
Elliptic Curves Montgomery's Ladder 40
Elliptic Curves Edwards Goes Degenerate 100
General SSH Keys 35
Elliptic Curves ProSign 3 100
Elliptic Curves Curveball 100
Elliptic Curves No Random, No Bias 120
Elliptic Curves Moving Problems 150
Elliptic Curves Elliptic Nodes 150
Elliptic Curves Micro Transmissions 120
Mathematics Ellipse Curve Cryptography 125
Elliptic Curves Exceptional Curves 100
Misc No Leaks 100
Symmetric Ciphers Lazy CBC 60
Symmetric Ciphers Symmetry 50
Symmetric Ciphers Flipping Cookie 60
Symmetric Ciphers ECB CBC WTF 55
Symmetric Ciphers ECB Oracle 60
Mathematics Prime and Prejudice 200
Symmetric Ciphers Bringing It All Together 50
RSA Null or Never 100
Crypto on the Web RSA or HMAC? 35
Crypto on the Web JWT Secrets 25
Crypto on the Web No Way JOSE 20
Hash Functions Jack's Birthday Confusion 30
Hash Functions Jack's Birthday Hash 20
Crypto on the Web JWT Sessions 10
Lattices Backpack Cryptography 120
Crypto on the Web Token Appreciation 5
Symmetric Ciphers Passwords as Keys 50
Diffie-Hellman Script Kiddie 70
Diffie-Hellman Static Client 2 120
RSA Bespoke Padding 100
RSA Signing Server 60
Hash Functions Collider 50
Misc Gotta Go Fast 40
Symmetric Ciphers Modes of Operation Starter 15
Diffie-Hellman Static Client 100
General Transparency 50
RSA Fast Primes 75
Diffie-Hellman Export-grade 100
RSA Marin's Secrets 50
RSA Infinite Descent 50
RSA Everything is Still Big 100
Mathematics Unencryptable 125
Mathematics Real Eisenstein 150
Elliptic Curves Smooth Criminal 60
Diffie-Hellman Additive 70
RSA Crossed Wires 100
RSA Everything is Big 70
Symmetric Ciphers Diffusion through Permutation 30
RSA Modulus Inutilis 50
RSA Salty 20
Lattices Find the Lattice 100
Lattices Gram Schmidt 30
Elliptic Curves Efficient Exchange 50
Diffie-Hellman Parameter Injection 60
Diffie-Hellman Deriving Symmetric Keys 40
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
RSA Endless Emails 150
RSA Manyprime 40
General CERTainly not 30
Mathematics Broken RSA 100
Symmetric Ciphers Confusion through Substitution 25
Symmetric Ciphers Round Keys 20
Symmetric Ciphers Structure of AES 15
RSA RSA Signatures 25
Diffie-Hellman Computing Shared Secrets 30
Diffie-Hellman Computing Public Values 25
Diffie-Hellman Generators of Groups 20
General Privacy-Enhanced Mail? 25
Symmetric Ciphers Resisting Bruteforce 10
RSA Square Eyes 35
Mathematics Modular Binomials 80
General Encoding Challenge 40
Mathematics Adrien's Signs 80
RSA Monoprime 30
RSA Inferius Prime 30
RSA Factoring 15
Mathematics Successive Powers 60
Diffie-Hellman Working with Fields 10
RSA RSA Decryption 20
RSA Private Keys 20
RSA Euler's Totient 20
RSA Public Keys 15
RSA Modular Exponentiation 10
Symmetric Ciphers Keyed Permutations 5
Lattices Gaussian Reduction 50
Lattices What's a Lattice? 40
Lattices Size and Basis 15
Lattices Vectors 10
Mathematics Chinese Remainder Theorem 40
Mathematics Modular Square Root 35
Mathematics Legendre Symbol 35
Mathematics Quadratic Residues 25
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 Modular Inverting 25
General Modular Arithmetic 2 20
General Modular Arithmetic 1 20
General Extended GCD 20
General Greatest Common Divisor 15
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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