Solve CTF cryptography challenges by identifying, analyzing, and exploiting weak crypto implementations in binaries to extract keys or decrypt data. Use for custom ciphers, weak crypto, key extraction, or algorithm identification.
Install
npx skills add cyberkaida/reverse-engineering-assistant --skill ctf-cryptonpx skills add cyberkaida/reverse-engineering-assistant --skill ctf-crypto -a claude-code -gnpx skills add cyberkaida/reverse-engineering-assistant --skill ctf-crypto -a codex -ggemini skills install https://github.com/cyberkaida/reverse-engineering-assistant.git --path ReVa/skills/ctf-cryptogh skill install cyberkaida/reverse-engineering-assistant ctf-cryptogit clone --depth 1 https://github.com/cyberkaida/reverse-engineering-assistant /tmp/cyberkaida__reverse-engineering-assistant
mkdir -p ~/.claude/skills ~/.agents/skills
cp -R /tmp/cyberkaida__reverse-engineering-assistant/ReVa/skills/ctf-crypto ~/.claude/skills/ctf-crypto # Claude Code
cp -R /tmp/cyberkaida__reverse-engineering-assistant/ReVa/skills/ctf-crypto ~/.agents/skills/ctf-crypto # Codex, Cursor, Gemini CLI, Copilot, OpenCode