CTF•密码学

86 / 100 · Low risk

Fine to try. Some of what it can do is expected: a security skill usually runs scanners and checks websites.

By asdfgh1445/ctf-super-hub (GitHub) · security · 847 stars · scanned at commit 7715719

用于 RSA、AES、ECC、格攻击、LWE、CVP、Coppersmith、Pollard、Wiener、填充预言机、GCM、KDF、伪随机数与零知识证明等密码学和数学类 CTF 题;触发名:ctf-crypto

Works with any agent that supports SKILL.md skills.

What this skill can do

Downloads and installs other software

This is disclosed by the author in the skill's SKILL.md or README.

Found in 8 places.

ctf-crypto/SKILL.md, line 19pip install pycryptodome z3-solver sympy gmpy2 hashpumpy fpylll py_ecc
ctf-crypto/SKILL.md, line 24apt install hashcat sagemath
ctf-crypto/SKILL.md, line 29brew install hashcat

Show 5 more

ctf-crypto/SKILL.md, line 33- SageMath — Linux: `apt install sagemath`, macOS: `brew install --cask sage`
ctf-crypto/SKILL.md, line 36> **Note:** `gmpy2` requires libgmp — Linux: `apt install libgmp-dev`, macOS: `brew install gmp`.
ctf-crypto/SKILL.md, line 315- **Python:** `pip install pycryptodome z3-solver sympy gmpy2`
ctf-crypto/rsa-attacks-2.md, line 464pip install roca-detect
ctf-crypto/rsa-attacks.md, line 142**When to use:** Very large `e` (close to `n`) often indicates small `d`. Also try `owiener` Python package: `pip install owiener`.

Runs commands on your computer

This is disclosed by the author in the skill's SKILL.md or README. Expected for a security skill.

Found in 7 places.

ctf-crypto/SKILL.md, line 19pip install pycryptodome z3-solver sympy gmpy2 hashpumpy fpylll py_ecc
ctf-crypto/SKILL.md, line 24apt install hashcat sagemath
ctf-crypto/SKILL.md, line 29brew install hashcat

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ctf-crypto/SKILL.md, line 71python3 -c "from Crypto.Util.number import *; n=<N>; print(f'bits={n.bit_length()}')"
ctf-crypto/classic-ciphers.md, line 526result = subprocess.run(['file', 'decrypted.pdf'], capture_output=True, text=True)
ctf-crypto/ecc-attacks.md, line 300subprocess.run(["fastcoll", "-p", prefix_file, "-o", "col1", "col2"])
ctf-crypto/rsa-attacks-2.md, line 772cmd = subprocess.check_output(['./crchack/crchack', '/tmp/cmd', hex(target_crc)])

Connects to the internet

This is disclosed by the author in the skill's SKILL.md or README. Expected for a security skill.

Found in 2 places.

ctf-crypto/modern-ciphers.md, line 297resp = requests.post(URL, data={'iv': iv.hex(), 'ct': ct.hex()})
ctf-crypto/zkp-and-advanced.md, line 190requests.post(url, json={"sig": modified_sig})

Install

Paste this into your terminal. It downloads exactly the version we scanned, not whatever is newest.

if [ -e ~/.agents/skills/'ctf' ] || [ -L ~/.agents/skills/'ctf' ]; then echo 'A skill folder named ctf already exists — not replacing it' >&2; false; else d=$(mktemp -d) && git clone --quiet --filter=blob:none --no-checkout 'https://github.com/asdfgh1445/ctf-super-hub' "$d" && git -C "$d" checkout --quiet '7715719738578b36b0a84b74aeb0de41bda0eaae' -- 'ctf-crypto' && mkdir -p ~/.agents/skills && cp -R "$d"/'ctf-crypto' ~/.agents/skills/'ctf' && rm -rf "$d"; fi

Codex reads ~/.agents/skills directly. For Claude Code, Cursor, Copilot, Gemini CLI, Antigravity or OpenCode, also link it. For Claude Code: ln -s ~/.agents/skills/'ctf' ~/.claude/skills/'ctf' (other agents: ~/.cursor/skills, ~/.copilot/skills, ~/.gemini/skills, ~/.gemini/config/skills, ~/.config/opencode/skills). Or install through the finder skill, which does both.

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Score history

Date	Version	Score
2026-11-08	`7715719`	86
2026-11-07	`7715719`	66