ctf-crypto

Solve CTF cryptographic challenges with lattice reduction and modular arithmetic.

735|96|Updated Apr 23, 2026
One-click install
npx skills add https://github.com/asdfgh1445/ctf-super-hub --skill ctf-crypto-asdfgh1445
Or copy as Structured Prompt for Agent
Please help me install this Agent Skill.
Skill: ctf-crypto
Source: https://github.com/asdfgh1445/ctf-super-hub/tree/main/ctf-crypto
Command: npx skills add https://github.com/asdfgh1445/ctf-super-hub --skill ctf-crypto-asdfgh1445

SYSTEM DOCUMENTATION & REQUIREMENTS

💡 This Skill includes references (resource) and assets (resource) components.

What problem does it solve?

This Skill provides a broad suite of cryptanalysis techniques, enabling users to solve a wide array of cryptographic challenges encountered in Capture The Flag competitions.

Core Features & Use Cases

  • Diverse Cryptanalysis Methods: Supports lattice reduction, differential attacks, partial key recovery, and classical cipher analysis.
  • Challenge Application: Use it to recover keys from partial leaks, break custom ciphers, or analyze vulnerabilities in implementations.
  • Use Case: When faced with a challenge involving LWE, RSA with faulty parameters, or complex cipher structures, this Skill offers the necessary mathematical and algorithmic tools.

Quick Start

Use the ctf-crypto skill to analyze a provided RSA modulus with small prime factors.

Frequently Asked Questions about ctf-crypto

High-intent search queries and answers about installing and using this skill.

FAQPage Schema
How do I solve RSA challenges with faulty parameters in CTF competitions?

To solve RSA challenges with faulty parameters, this Skill applies advanced cryptanalysis algorithms for prime factorization and modular arithmetic to recover keys from small prime factors or partial leaks.

What techniques are needed for lattice reduction in cryptanalysis?

Lattice reduction in cryptanalysis requires mathematical modeling to solve Learning With Errors (LWE) problems, which this Skill facilitates through computational tools designed for complex cryptographic structures.

Can I use this to analyze vulnerabilities and break custom ciphers?

Yes, you can analyze implementation vulnerabilities and break custom ciphers using the provided differential attacks and classical cipher analysis methods suitable for CTF environments.

Does this toolkit support partial key recovery for ECC?

Yes, this toolkit supports partial key recovery for ECC by providing the necessary mathematical and algorithmic tools to exploit vulnerabilities and analyze faulty parameters in cryptographic implementations.

What is the best way to approach an LWE cryptographic challenge?

The best way to approach an LWE cryptographic challenge is using lattice reduction techniques, which this Skill provides alongside other cryptanalysis methods to mathematically model and computationally solve the problem.