Oscarism2401

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Submitted Solutions

Broken RSA 0

Solved Challenges

RSA Null or Never 100
Lattices Backpack Cryptography 120
Mathematics Unencryptable 125
Lattices From Private to Public Key LWE 25
Lattices Find the Lattice 100
Mathematics Broken RSA 100
Lattices Gram Schmidt 30
Crypto on the Web Sharks on the Wire 10
Hash Functions Hash Stuffing 50
Hash Functions Collider 50
Diffie-Hellman Export-grade 100
Diffie-Hellman Parameter Injection 60
General Encoding Challenge 40
General CERTainly not 30
General Privacy-Enhanced Mail? 25
Lattices LWE Intro 10
Isogenies The j-invariant 20
Isogenies Introduction to Isogenies 10
ZKPs ZKP Introduction 5
RSA Endless Emails 150
RSA Marin's Secrets 50
RSA Infinite Descent 50
RSA Crossed Wires 100
RSA Everything is Still Big 100
RSA Everything is Big 70
RSA Modulus Inutilis 50
Symmetric Ciphers ECB CBC WTF 55
RSA Manyprime 40
RSA Salty 20
Diffie-Hellman Generators of Groups 20
Diffie-Hellman Deriving Symmetric Keys 40
Diffie-Hellman Computing Shared Secrets 30
Diffie-Hellman Computing Public Values 25
Diffie-Hellman Working with Fields 10
RSA Square Eyes 35
RSA Inferius Prime 30
RSA Monoprime 30
Symmetric Ciphers Bringing It All Together 50
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
Lattices Gaussian Reduction 50
Lattices What's a Lattice? 40
Symmetric Ciphers Passwords as Keys 50
Symmetric Ciphers ECB Oracle 60
RSA Factoring 15
RSA RSA Signatures 25
RSA RSA Decryption 20
RSA Private Keys 20
Symmetric Ciphers Modes of Operation Starter 15
Symmetric Ciphers Diffusion through Permutation 30
Symmetric Ciphers Confusion through Substitution 25
Symmetric Ciphers Round Keys 20
Mathematics Modular Binomials 80
Symmetric Ciphers Structure of AES 15
Mathematics Adrien's Signs 80
Mathematics Modular Square Root 35
General Extended GCD 20
Hash Functions Jack's Birthday Confusion 30
Hash Functions Jack's Birthday Hash 20
Lattices Vectors 10
General Lemur XOR 40
Lattices LWE Background 5
Crypto on the Web JWT Sessions 10
Crypto on the Web Token Appreciation 5
Elliptic Curves Background Reading 5
Symmetric Ciphers Resisting Bruteforce 10
Symmetric Ciphers Keyed Permutations 5
Mathematics Legendre Symbol 35
Mathematics Successive Powers 60
Lattices Size and Basis 15
Mathematics Chinese Remainder Theorem 40
RSA Euler's Totient 20
RSA Public Keys 15
RSA Modular Exponentiation 10
Mathematics Quadratic Residues 25
General Modular Inverting 25
General Modular Arithmetic 2 20
General Modular Arithmetic 1 20
Introduction Network Attacks 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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