Nezaa

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Solved Challenges

Lattices Too Many Errors 100
Lattices Missing Modulus 80
Lattices Nativity 60
Lattices Noise Free 40
Misc Bruce Schneier's Password 100
Misc Armory 100
Misc Bit by Bit 100
Misc L-Win 120
Misc Jeff's LFSR 150
Lattices From Private to Public Key LWE 25
Misc Gotta Go Fast 40
Elliptic Curves Elliptic Nodes 150
Elliptic Curves Edwards Goes Degenerate 100
Elliptic Curves Double and Broken 50
Elliptic Curves No Random, No Bias 120
Elliptic Curves Digestive 60
Hash Functions MD0 80
Hash Functions Twin Keys 100
Hash Functions PriMeD5 100
Hash Functions No Difference 175
Hash Functions Collider 50
RSA Marin's Secrets 50
RSA Fast Primes 75
Symmetric Ciphers Oh SNAP 120
Symmetric Ciphers Dancing Queen 120
Symmetric Ciphers CTRIME 70
Mathematics Broken RSA 100
Lattices Backpack Cryptography 120
Lattices What's a Lattice? 40
Lattices Gram Schmidt 30
Lattices Size and Basis 15
Lattices Vectors 10
General SSH Keys 35
General CERTainly not 30
General Privacy-Enhanced Mail? 25
Mathematics Modular Binomials 80
RSA Vote for Pedro 150
RSA Signing Server 60
RSA Let's Decrypt 80
RSA Blinding Light 120
RSA Null or Never 100
RSA Bespoke Padding 100
Diffie-Hellman The Matrix Reloaded 100
Diffie-Hellman The Matrix 75
Diffie-Hellman Script Kiddie 70
Diffie-Hellman Static Client 2 120
Diffie-Hellman Additive 70
Diffie-Hellman Static Client 100
Diffie-Hellman Parameter Injection 60
Diffie-Hellman Deriving Symmetric Keys 40
Diffie-Hellman Computing Shared Secrets 30
Diffie-Hellman Computing Public Values 25
Diffie-Hellman Generators of Groups 20
Diffie-Hellman Working with Fields 10
RSA Modulus Inutilis 50
RSA Salty 20
RSA Manyprime 40
RSA Monoprime 30
RSA Inferius Prime 30
Elliptic Curves Exceptional Curves 100
Elliptic Curves Micro Transmissions 120
Elliptic Curves Smooth Criminal 60
Elliptic Curves Efficient Exchange 50
Elliptic Curves Scalar Multiplication 35
Elliptic Curves Point Addition 30
Elliptic Curves Point Negation 10
Elliptic Curves Background Reading 5
Lattices LWE Intro 10
Lattices LWE Background 5
Symmetric Ciphers Triple DES 60
Symmetric Ciphers Lazy CBC 60
Symmetric Ciphers Flipping Cookie 60
Symmetric Ciphers ECB CBC WTF 55
Symmetric Ciphers ECB Oracle 60
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
Crypto on the Web Secure Protocols 5
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
Mathematics Legendre Symbol 35
Lattices Find the Lattice 100
Mathematics Prime and Prejudice 200
Mathematics Real Eisenstein 150
Mathematics Cofactor Cofantasy 150
Mathematics Roll your Own 125
Mathematics Ellipse Curve Cryptography 125
Mathematics No Way Back Home 100
Mathematics Adrien's Signs 80
Mathematics Successive Powers 60
Mathematics Modular Square Root 35
Mathematics Chinese Remainder Theorem 40
Mathematics Quadratic Residues 25
General Modular Inverting 25
General Modular Arithmetic 2 20
General Modular Arithmetic 1 20
General Extended GCD 20
General Lemur XOR 40
General Encoding Challenge 40
Introduction Network Attacks 5
RSA Factoring 15
RSA RSA Decryption 20
RSA Private Keys 20
RSA Euler's Totient 20
RSA Public Keys 15
RSA Modular Exponentiation 10
Symmetric Ciphers Structure of AES 15
Symmetric Ciphers Resisting Bruteforce 10
Symmetric Ciphers Keyed Permutations 5
General Greatest Common Divisor 15
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 Great Snakes 3
Introduction Finding Flags 2

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