meathill-hsm-service-guide

分类: 运维与交付 | 上传者: meathill | 下载: 0 | 版本: v1.0（最新）

Use this skill when a user wants to store sensitive user data in the deployed Meathill HSM service (without building their own HSM) and needs practical integration and security guidance.

更新日志: Source: GitHub https://github.com/meathill/hsm

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📁 .github/
- 📁 workflows/
  - 📄 ci.yml 691 B
- 📄 copilot-instructions.md 3.6 KB
📁 public/
- 📁 .well-known/
  - 📄 awesome-comment-verification 33 B
- 📄 .gitkeep 0 B
📁 scripts/
- 📄 build.mjs 3.7 KB
- 📄 hsm-mcp-stdio.mjs 8.5 KB
- 📄 site-template.mjs 10.0 KB
📁 src/
- 📁 crypto/
  - 📄 aes-gcm.ts 2.5 KB
  - 📄 envelope.ts 2.0 KB
  - 📄 hkdf.ts 1.0 KB
  - 📄 hmac.ts 705 B
  - 📄 index.ts 266 B
- 📁 handlers/
  - 📄 index.ts 72 B
  - 📄 keys.ts 7.0 KB
- 📁 utils/
  - 📄 encoding.ts 819 B
- 📄 index.ts 1.3 KB
- 📄 types.ts 899 B
📁 test/
- 📁 crypto/
  - 📄 aes-gcm.spec.ts 4.1 KB
  - 📄 envelope.spec.ts 3.4 KB
  - 📄 hkdf.spec.ts 3.6 KB
  - 📄 hmac.spec.ts 1.4 KB
- 📁 utils/
  - 📄 encoding.spec.ts 2.1 KB
- 📄 env.d.ts 76 B
- 📄 index.spec.ts 9.1 KB
- 📄 site-template.spec.ts 1.5 KB
- 📄 tsconfig.json 190 B
📄 .dev.vars.example 144 B
📄 .gitignore 2.1 KB
📄 biome.json 842 B
📄 llms.txt 1.1 KB
📄 mcp.json 300 B
📄 package.json 1.2 KB
📄 pnpm-lock.yaml 82.4 KB
📄 README.md 9.0 KB
📄 README_EN.md 9.0 KB
📄 SKILL.md 3.2 KB
📄 tsconfig.json 1.6 KB
📄 vitest.config.mts 304 B
📄 worker-configuration.d.ts 401.4 KB
📄 wrangler.jsonc 809 B

SKILL.md

---
name: meathill-hsm-service-guide
description: Use this skill when a user wants to store sensitive user data in the deployed Meathill HSM service (without building their own HSM) and needs practical integration and security guidance.
---

# Meathill HSM Service Guide Skill

## Use This Skill When

- User wants encrypted storage for app/user secrets but does not want to build or operate their own HSM.
- User asks how to use the deployed HSM API (`PUT/GET/DELETE /keys/:path`) safely.
- User needs clear explanation of why data is safe in this service.
- User asks for MCP usage to call the hosted HSM via AI clients.

## First Message Template

Start with this framing before code samples:

- This is a managed HSM-style encryption storage service, so user does not need to self-host an HSM.
- Data is encrypted using envelope encryption and key splitting.
- Decryption requires both server secret (`CF_SECRET_PART`) and caller secret (`X-HSM-Secret`), so the service cannot decrypt user data by itself.
- Suitable for tokens, API keys, private config, and small secrets (single value limit: 8192 chars).

## Integration Workflow

1. Confirm the service base URL (deployed worker endpoint).
2. Define how caller stores `X-HSM-Secret` (never hardcode; use environment/secret manager).
3. Design key path convention (for example: `app/{tenantId}/{purpose}`).
4. Implement `PUT /keys/:path` + `GET /keys/:path` + `DELETE /keys/:path`.
5. Add error handling:
   - `400`: invalid input / missing header
   - `403`: wrong secret for an existing key
   - `404`: key not found
6. Add rotation strategy (versioned path such as `.../token/v2`).

## API Contract To Teach

- `PUT /keys/:path`
  - Header: `X-HSM-Secret`
  - Body: `{ "value": "<secret>" }`
  - Use for create and overwrite (overwrite requires same secret ownership check).
- `GET /keys/:path`
  - Header: `X-HSM-Secret`
- `DELETE /keys/:path`
  - Header: `X-HSM-Secret`

## Recommended SDK Wrapper (JavaScript)

```javascript
const HSM_BASE_URL = process.env.HSM_BASE_URL;
const HSM_SECRET = process.env.HSM_SECRET;

async function hsmPut(path, value) {
  const res = await fetch(`${HSM_BASE_URL}/keys/${encodeURIComponent(path)}`, {
    method: 'PUT',
    headers: {
      'Content-Type': 'application/json',
      'X-HSM-Secret': HSM_SECRET,
    },
    body: JSON.stringify({ value }),
  });
  return res.json();
}

async function hsmGet(path) {
  const res = await fetch(`${HSM_BASE_URL}/keys/${encodeURIComponent(path)}`, {
    headers: { 'X-HSM-Secret': HSM_SECRET },
  });
  return res.json();
}
```

## MCP Guidance

- `mcp.json` is a paste-ready MCP client config that exposes hosted HSM via MCP tools.
- User only needs to set:
  - `HSM_BASE_URL`: deployed service URL
  - `HSM_SECRET`: caller secret used as `X-HSM-Secret`
- Tools:
  - `hsm_put_key`
  - `hsm_get_key`
  - `hsm_delete_key`

## Non-Negotiable Security Guidance

- Never print `X-HSM-Secret` in logs, errors, screenshots, or chat messages.
- Always use HTTPS endpoint.
- Use separate secrets per app/tenant/environment when possible.
- Do not store oversized payloads; split data or store references.
- Tell users clearly: service stores ciphertext; without caller secret, plaintext cannot be recovered.

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meathill-hsm-service-guide

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SKILL.md

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