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Solved Challenges

Diffie-Hellman The Matrix 75
Crypto on the Web Decrypting TLS 1.3 35
ZKPs Pairing-Based Cryptography 50
Mathematics Roll your Own 125
Lattices LWE Intro 10
Symmetric Ciphers Dancing Queen 120
Mathematics Ellipse Curve Cryptography 125
Mathematics No Way Back Home 100
Isogenies Introduction to Isogenies 10
Symmetric Ciphers Logon Zero 80
Symmetric Ciphers CTRIME 70
Crypto on the Web Decrypting TLS 1.2 30
Elliptic Curves Efficient Exchange 50
Elliptic Curves Curves and Logs 40
RSA Vote for Pedro 150
Elliptic Curves Scalar Multiplication 35
Elliptic Curves Point Addition 30
Crypto on the Web Saying Hello 20
Symmetric Ciphers Stream of Consciousness 80
ZKPs Hamiltonicity 1 100
CTF Archive Hamiltonicity (CryptoHack) 0
Elliptic Curves Point Negation 10
Hash Functions Hash Stuffing 50
RSA Null or Never 100
ZKPs OR Proof 75
CTF Archive OR Proof (CryptoHack) 0
ZKPs Too Honest 50
ZKPs Non-Interactive 35
ZKPs Honest Verifier Zero Knowledge 30
ZKPs Special Soundness 25
ZKPs Proofs of Knowledge 20
General Transparency 50
Diffie-Hellman Static Client 2 120
ZKPs ZKP Introduction 5
RSA RSA Backdoor Viability 175
Crypto on the Web TLS Handshake 15
Hash Functions Merkle Trees 25
RSA Ron was Wrong, Whit is Right 90
Hash Functions Collider 50
RSA Bespoke Padding 100
RSA Blinding Light 120
Diffie-Hellman Script Kiddie 70
RSA Let's Decrypt 80
RSA Signing Server 60
General SSH Keys 35
General CERTainly not 30
Diffie-Hellman Additive 70
Diffie-Hellman Static Client 100
Diffie-Hellman Export-grade 100
RSA Fast Primes 75
Misc No Leaks 100
Misc Gotta Go Fast 40
Mathematics Cofactor Cofantasy 150
General Encoding Challenge 40
Lattices Find the Lattice 100
Lattices LWE Background 5
Diffie-Hellman Parameter Injection 60
Crypto on the Web Secure Protocols 5
Crypto on the Web Sharks on the Wire 10
Crypto on the Web JWT Secrets 25
Symmetric Ciphers Bean Counter 60
Symmetric Ciphers Symmetry 50
General Privacy-Enhanced Mail? 25
Lattices Gaussian Reduction 50
Symmetric Ciphers Triple DES 60
Mathematics Successive Powers 60
Crypto on the Web No Way JOSE 20
Mathematics Unencryptable 125
Mathematics Broken RSA 100
Symmetric Ciphers Passwords as Keys 50
Symmetric Ciphers Lazy CBC 60
Symmetric Ciphers Bringing It All Together 50
Symmetric Ciphers Confusion through Substitution 25
Symmetric Ciphers ECB Oracle 60
Symmetric Ciphers Flipping Cookie 60
Symmetric Ciphers ECB CBC WTF 55
Mathematics Modular Binomials 80
Mathematics Adrien's Signs 80
Diffie-Hellman Deriving Symmetric Keys 40
Diffie-Hellman Computing Shared Secrets 30
Diffie-Hellman Computing Public Values 25
Diffie-Hellman Generators of Groups 20
RSA Endless Emails 150
RSA Manyprime 40
RSA Marin's Secrets 50
Crypto on the Web JWT Sessions 10
Crypto on the Web Token Appreciation 5
Symmetric Ciphers Diffusion through Permutation 30
Mathematics Modular Square Root 35
Symmetric Ciphers Modes of Operation Starter 15
RSA Everything is Still Big 100
Hash Functions Jack's Birthday Confusion 30
Hash Functions Jack's Birthday Hash 20
Lattices Gram Schmidt 30
Mathematics Legendre Symbol 35
General Lemur XOR 40
RSA RSA Signatures 25
Symmetric Ciphers Round Keys 20
Symmetric Ciphers Structure of AES 15
Introduction Network Attacks 5
RSA Infinite Descent 50
RSA Crossed Wires 100
RSA Everything is Big 70
Mathematics Chinese Remainder Theorem 40
Lattices What's a Lattice? 40
Lattices Size and Basis 15
Lattices Vectors 10
RSA Modulus Inutilis 50
General Modular Inverting 25
General Modular Arithmetic 2 20
RSA Square Eyes 35
RSA Monoprime 30
RSA Salty 20
General You either know, XOR you don't 30
General Favourite byte 20
Symmetric Ciphers Resisting Bruteforce 10
Symmetric Ciphers Keyed Permutations 5
Diffie-Hellman Working with Fields 10
General XOR Properties 15
General XOR Starter 10
Elliptic Curves Background Reading 5
General Modular Arithmetic 1 20
General Extended GCD 20
General Greatest Common Divisor 15
RSA Inferius Prime 30
RSA Factoring 15
RSA RSA Decryption 20
RSA Private Keys 20
RSA Euler's Totient 20
RSA Public Keys 15
RSA Modular Exponentiation 10
Mathematics Quadratic Residues 25
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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