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codeguard-0-additional-cryptography Cursor ruleA

codeguard-0-additional-cryptography from cisco-ai-defense/skill-scanner is a Cursor rule: instructions the Cursor agent follows in that repo.

Install it, pinned
mdr add cisco-ai-defense/skill-scanner/.cursor/rules/codeguard-0-additional-cryptography.mdc@v1.0.1

Pins v1.0.1 in mdr.lock. Pin the fingerprint instead.

Audit grade
A, 14 of 14 checks passed
Kind
Cursor rule
Repository
cisco-ai-defense/skill-scanner
Path
.cursor/rules/codeguard-0-additional-cryptography.mdc
Versions recorded
1
Latest version
v1.0.1, committed Jan 29, 2026
Size
3,358 bytes
Repository stars
2,616
License
a license file GitHub does not identify

Additional Cryptography guidance.

Collected from public GitHub. Every version is saved exactly as it was and never changes. Install it at an exact version with the mdr tool, and every file is checked before it reaches your agent. The main file is checked against the SHA-256 fingerprint recorded here, and the others against the fingerprints GitHub keeps for its source commit. The automatic checks below grade the latest version, and the same checks always give the same file the same grade.

What the file says

rule_id: codeguard-0-additional-cryptography

## Additional Cryptography & TLS

Apply modern, vetted cryptography for data at rest and in transit. Manage keys safely, configure TLS correctly, deploy HSTS, and consider pinning only when appropriate.

### Algorithms and Modes
- Symmetric: AES‑GCM or ChaCha20‑Poly1305 preferred. Avoid ECB. CBC/CTR only with encrypt‑then‑MAC.
- Asymmetric: RSA ≥2048 or modern ECC (Curve25519/Ed25519). Use OAEP for RSA encryption.
- Hashing: SHA‑256+ for integrity; avoid MD5/SHA‑1.
- RNG: Use CSPRNG appropriate to platform (e.g., SecureRandom, crypto.randomBytes, secrets module). Never use non‑crypto RNGs.

### Key Management
- Generate keys within validated modules (HSM/KMS) and never from passwords or predictable inputs.
- Separate keys by purpose (encryption, signing, wrapping). Rotate on compromise, cryptoperiod, or policy.
- Store keys in KMS/HSM or vault; never hardcode; avoid plain env vars. Use KEK to wrap DEKs; store separately.
- Control access to trust stores; validate updates; audit all key access and operations.

### Data at Rest
- Encrypt sensitive data; minimize stored secrets; tokenize where possible.
…

Read the whole file at its exact version.

How to install

The exact contents, by fingerprint
mdr add cisco-ai-defense/skill-scanner/.cursor/rules/codeguard-0-additional-cryptography.mdc@sha256:b57e1e06296ef7e4

The line at the top of this page pins the label v1.0.1, which is what most people want. This one pins the sha256 fingerprint of the contents instead, so it survives a label being moved. Either way the exact version is written to mdr.lock, and mdr install downloads and checks those contents again, so it installs them exactly or stops with an error.

Badge

mdr badge

[![mdr](https://markdownregistry.com/badge/art_zyz7ivukybivl33h.svg)](https://markdownregistry.com/a/art_zyz7ivukybivl33h)

5 badge image fetches in 30 days. What the badge shows.

Versions

The registry has recorded 1 version of this file, committed on Jan 29, 2026.

versioncommittedcommitsizeaudit
v1.0.1 latest2026-01-29 ceb5ad1 3,358 BA view

Audit of the latest version

A  14 of 14 checks passed. Fixed automatic checks with no AI involved, so the same checks give the same answer every run.
  • pass: Size between 200 bytes and 200 KB (3358 bytes)
  • pass: No zero-width or bidi control characters
  • pass: No instruction hidden inside an HTML comment
  • pass: No link to an exfiltration or paste host
  • pass: No credential-shaped string
  • pass: No instruction to send local credentials anywhere
  • pass: No text hidden with inline styles
  • pass: No prompt-injection phrasing
  • pass: No curl or wget piped into a shell
  • pass: No recursive delete of root, home or parent
  • pass: No instruction to read or print local credentials
  • pass: No base64 blob over 200 characters
  • pass: No link to a raw IP address
  • pass: No script tag

Source

GitHub

cisco-ai-defense/skill-scanner · 2,616 stars · license a license file GitHub does not identify · pushed 2026-10-20 · branch main

API

GET https://markdownregistry.com/api/v1/artifacts/art_zyz7ivukybivl33h
GET https://markdownregistry.com/api/v1/resolve?ref=cisco-ai-defense/skill-scanner/.cursor/rules/codeguard-0-additional-cryptography.mdc
GET https://markdownregistry.com/api/v1/blob/b57e1e06296ef7e4f64e01d8c92159a9499091b77adc9d15fbc7bd00007ebf33

Your AI assistant does the legwork. You hear about the deals worth your word. Hand yours the standing instructions at modelranch.com and it joins the network that reads files like this one.

Guides: Cursor rules vs AGENTS.md · which agent file does what.

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Every file in cisco-ai-defense/skill-scanner

Other files named codeguard-0-additional-cryptography

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santosomar/ai-agents-for-cybersecurity · .cursor/rules/codeguard-0-additional-cryptography.mdc · Additional Cryptography guidance
v1.5.0 · audit A · 251 stars

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