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from CTF Skills Collection1,622
Reference of cryptographic attack techniques and tools for CTF challenges (RSA, AES, ECC, lattices, PRNGs, padding oracles, and more).
Provides a comprehensive quick-reference of cryptanalysis techniques and practical tooling for CTF-style cryptography challenges. It collects one-line technique summaries and links to detailed supporting files (RSA attacks, lattice workflows, stream/modern/legacy cipher guides, PRNG recovery, ZKP pitfalls) and includes quick-start commands and recommended Python/Sage tools.
Use this skill when you face a CTF crypto problem or any challenge that requires targeted cryptanalysis (factoring, padding oracle exploitation, lattice-based HNP/LWE approaches, PRNG/state recovery, ECC/DSA/ECDSA nonce issues, or ZKP-related attacks). Pivot to reverse, forensics, or pwn skills when the blocker is binary analysis, disk recovery, or exploit development.
Best for filesystem-enabled agents with shell access and Python/Sage support (Claude Code, Codex-style agents, or any agent that can run local scripts and pip/sage).
CTF Cryptography is a comprehensive reference skill covering classical through exotic crypto attack techniques for CTF competitions. No scripts included — purely a knowledge base with 15+ supporting reference files. SKILL.md is exceptionally well-organized with progressive disclosure: summaries inline, full code examples in linked markdown files. Covers RSA, AES, ECC, lattices, PRNGs, ZKP, and exotic algebraic structures with real CTF attribution. Minor security note: git clone of RsaCtfTool without checksum verification, and unpinned package installs.
Pure reference skill, no executable scripts. Well-maintained knowledge base with clear topic separation. Allowed-tools include Bash which is appropriate for CTF workflows. No security concerns — all attack techniques are for educational CTF use.
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