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ctf-crypto

CTF密码学攻击知识库 — RSA攻击（小指数/共模/Wiener/Coppersmith）、AES攻击（Padding Oracle/ECB字节翻转/GCM nonce重用）、ECC攻击、LFSR/LCG/PRNG攻击、古典密码、LWE格攻击

deepsec/spear/skills/specialized/ctf-crypto/SKILL.md

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# CTF 密码学攻击知识库

针对 CTF Crypto 题目的实战攻击知识库，提供**具体攻击参数、数学公式、Python 代码片段**。

**与 `crypto-toolkit` 的区别**：
- `crypto-toolkit` → 编解码操作工具（base64 解码、MD5 哈希、AES 加解密）
- `ctf-crypto` → 密码学攻击知识（RSA 小指数攻击怎么做、Padding Oracle 怎么利用）

## 核心原则

1. **先识别加密体系** — 看密钥长度、加密模式、已知量，确定攻击方向
2. **工具验证** — 使用 `python_execute` 执行攻击代码，用 `crypto_decode` 做辅助编解码
3. **参数敏感** — 密码学攻击对参数极其敏感，必须精确计算