This skill package provides essential cryptography attack techniques for Capture The Flag (CTF) challenges. Utilize this capability when addressing encryption, hashing, signature calculations, zero-knowledge proofs, pseudo-random number generation, or mathematical cryptography issues involving methods like RSA, AES, ECC, and more.
What this skill does
Integrates cryptography attack techniques into AI agents like Claude Code, Cursor, and Codex.
Offers quick-reference one-liners for various cryptographic methods and challenges.
Includes detailed documentation with code examples in supporting files.
Enables automated RSA attack setup using the RsaCtfTool from GitHub.
Who it is for
Developers participating in CTF competitions with a focus on cryptography challenges.
Security researchers conducting authorised security testing and educational activities.
Teams using AI coding agents like Claude Code, Cursor, and Codex seeking to integrate cryptographic problem-solving capabilities.
Use cases
Solving complex cryptography puzzles in CTF competitions.
Researching potential cryptographic vulnerabilities within secure communications.
Developing and testing cryptographic theories in an educational setting.
Dependencies for Linux users: hashcat, sagemath. Install via `apt install`.
Dependencies for macOS users: hashcat. Install via Homebrew.
Manual installation of SageMath recommended for complex calculations.
Automated RSA attack functionalities via GitHub's RsaCtfTool.
For authorised security testing, defensive research and educational use only.
Source & Licence
This package is built on open-source work published by ljagiello (ljagiello/ctf-skills) and distributed under MIT. The original licence text and copyright notice are included in your download.
Personal and commercial use, modification and redistribution are permitted, provided the original copyright and licence notice are retained.
Your purchase covers curation, licence verification, packaging, documentation and instant delivery. It does not grant exclusive rights to the underlying open-source code, which remains available under its original licence.
Delivery & Support
Delivery: instant — a secure download link is emailed to you as soon as payment is confirmed.
Format: ZIP archive containing the skill files, documentation and the original licence.
Updates: updates are included only where stated on this page.
Refunds
This is a digital product delivered immediately after purchase. By completing your order you request immediate delivery and acknowledge that, once the download has been accessed, the statutory right to cancel no longer applies to the extent permitted by law. Refund requests are handled in accordance with our published Refund Policy.
Claude, Codex, Gemini and Cursor are trademarks of their respective owners. MCP Cart is an independent marketplace and is not affiliated with, endorsed by, or sponsored by any of them. Compatibility references describe interoperability only.