eslint-plugin-crypto - npm explorer

Cryptographic security rules enforcing best practices and modern standards (Node.js crypto).

Description

This plugin provides Cryptographic security rules enforcing best practices and modern standards (Node.js crypto).
By using this plugin, you can proactively identify and mitigate security risks across your entire codebase.

Philosophy

Interlace fosters strength through integration. Instead of stacking isolated rules, we interlace security directly into your workflow to create a resilient fabric of code. We believe tools should guide rather than gatekeep, providing educational feedback that strengthens the developer with every interaction.

Getting Started

- To check out the guide, visit eslint.interlace.tools. 📚
- 要查看中文指南, 请访问 eslint.interlace.tools. 📚
- 가이드 문서는 eslint.interlace.tools에서 확인하실 수 있습니다. 📚
- ガイドは eslint.interlace.toolsでご確認ください。 📚
- Para ver la guía, visita eslint.interlace.tools. 📚
- للاطلاع على الدليل، قم بزيارة eslint.interlace.tools. 📚

``bash npm install eslint-plugin-crypto --save-dev`

`💡 What You Get`


- 24 security rules covering cryptographic best practices
- CVE detection for CVE-2023-46809, CVE-2020-36732, CVE-2023-46233
- OWASP Top 10 coverage for cryptographic vulnerabilities
- LLM-optimized messages with CWE references and fix guidance
- Package support for crypto-hash, crypto-random-string, crypto-js
Features

- 🔐 24 Rules covering crypto best practices
- 🎯 CVE Detection (CVE-2023-46809, CVE-2020-36732, CVE-2023-46233)
- 🤖 AI-Optimized messages with CWE references
- ⚡ Auto-Fix suggestions where safe
- 📦 Package Support for crypto-hash, crypto-random-string, crypto-js
⚙️ Configuration Presets

| Preset               | Description                                  |
| :------------------- | :------------------------------------------- |
|

recommended

        | Balanced security defaults for most projects |
|

strict

             | Strict preset - all rules as errors          |
|

cryptojs-migration

 | For teams migrating from crypto-js           |
|

nodejs-only

        | Only Node.js crypto rules                    |
|

cve-focused

        | Rules targeting specific CVEs                |
📚 Supported Libraries

| Library            | npm                                                                                                                | Downloads                                                                                                              | Detection                         |
| ------------------ | ------------------------------------------------------------------------------------------------------------------ | ---------------------------------------------------------------------------------------------------------------------- | --------------------------------- |
|

crypto

 (Node.js) | ![node](https://nodejs.org/api/crypto.html) | -                                                                                                                      | Weak Algo, Key Length, Randomness |
|

crypto-js

        | ![npm](https://www.npmjs.com/package/crypto-js)    | ![downloads](https://www.npmjs.com/package/crypto-js) | Legacy patterns, Weak PRNG        |
Examples

$3

`javascript // CVE-2023-46809: Marvin Attack crypto.privateDecrypt({ key, padding: crypto.constants.RSA_PKCS1_PADDING }, buffer);

// CWE-338: Weak random const token = Math.random().toString(36);

// CWE-327: ECB mode leaks patterns crypto.createCipheriv('aes-256-ecb', key, iv);

// CWE-208: Timing attack if (userToken === storedToken) { ... }`

`$3`

`javascript // Use OAEP padding crypto.privateDecrypt({ key, padding: crypto.constants.RSA_PKCS1_OAEP_PADDING }, buffer);

// Secure random const token = crypto.randomBytes(32).toString('hex');

// GCM provides authentication crypto.createCipheriv('aes-256-gcm', key, iv);

// Constant-time comparison if (crypto.timingSafeEqual(Buffer.from(userToken), Buffer.from(storedToken))) { ... }`

`Peer Dependencies (Optional)`

json
{
  "crypto-hash": ">=3.0.0",
  "crypto-random-string": ">=4.0.0",
  "crypto-js": ">=4.0.0"
}


Rules
Legend

| Icon | Description | | :---: | :--- | | 💼 | Recommended: Included in the recommended preset. | | ⚠️ | Warns: Set towarn in recommended preset. | | 🔧 | Auto-fixable: Automatically fixable by the--fixCLI option. | | 💡 | Suggestions: Providing code suggestions in IDE. | | 🚫 | Deprecated: This rule is deprecated. |

| Rule | CWE | OWASP | CVSS | Description | 💼 | ⚠️ | 🔧 | 💡 | 🚫 | | :--- | :---: | :---: | :---: | :--- | :---: | :---: | :---: | :---: | :---: | | no-hardcoded-crypto-key | CWE-321 | A02:2025 | 9.8 | Enforce no hardcoded crypto key | 💼 | | | 💡 | | | no-key-reuse | CWE-323 | A02:2025 | 7.5 | Enforce no key reuse | 💼 | ⚠️ | | 💡 | | | no-math-random-crypto | CWE-338 | A07:2025 | 5.3 | Enforce no math random crypto | 💼 | | | 💡 | | | no-numeric-only-tokens | CWE-330 | A07:2025 | 5.3 | Enforce no numeric only tokens | 💼 | ⚠️ | | 💡 | | | no-predictable-salt | CWE-331 | A07:2025 | 7.5 | Enforce no predictable salt | 💼 | | | 💡 | | | no-web-crypto-export | CWE-321 | A02:2025 | 5.0 | Enforce no web crypto export | 💼 | ⚠️ | | 💡 | | | require-authenticated-encryption | CWE-327 | A04:2025 | 6.5 | Enforce require authenticated encryption | 💼 | ⚠️ | | 💡 | | | require-key-length | CWE-326 | A02:2025 | 7.5 | Enforce require key length | 💼 | ⚠️ | | 💡 | | | require-random-iv | CWE-329 | A02:2025 | 7.5 | Enforce require random iv | 💼 | ⚠️ | | 💡 | | | require-secure-pbkdf2-digest | CWE-916 | A02:2025 | 9.1 | Enforce require secure pbkdf2 digest | 💼 | | | 💡 | | | require-sufficient-length | CWE-326 | A02:2025 | 7.5 | Enforce require sufficient length | 💼 | ⚠️ | | 💡 | |

`🔗 Related ESLint Plugins`

Part of the Interlace ESLint Ecosystem — AI-native security plugins with LLM-optimized error messages:

📄 License

MIT © Ofri Peretz