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114 lines
3.9 KiB
Markdown
114 lines
3.9 KiB
Markdown
---
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title: "Encrypt"
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tags:
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- plugin/transformer
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encrypt: true
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encrypt_message: '^ Password is "quartz"'
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password: "quartz"
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---
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This plugin enables content encryption for sensitive pages in your Quartz site. It uses AES encryption with password-based access control, allowing you to protect specific pages or entire folders with passwords.
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> [!note]
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> For information on how to add, remove or configure plugins, see the [[configuration#Plugins|Configuration]] page.
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## Configuration
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```typescript
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Plugin.Encrypt({
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algorithm: "aes-256-cbc", // Encryption algorithm
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keyLength: 32, // Key length in bytes
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iterations: 100000, // PBKDF2 iterations
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encryptedFolders: {
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// Folder-level encryption
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"private/": "folder-password",
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"work/confidential/": "work-password",
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},
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ttl: 3600 * 24 * 7, // Password cache TTL in seconds (7 days)
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})
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```
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### Configuration Options
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- `algorithm`: Encryption algorithm to use. Supported values:
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- `"aes-256-cbc"` (default): AES-256 in CBC mode
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- `"aes-256-gcm"`: AES-256 in GCM mode (authenticated encryption)
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- `"aes-256-ecb"`: AES-256 in ECB mode (not recommended for security)
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- `keyLength`: Key length in bytes (default: 32 for AES-256)
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- `iterations`: Number of PBKDF2 iterations for key derivation (default: 100000)
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- `encryptedFolders`: Object mapping folder paths to passwords for folder-level encryption
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- `ttl`: Time-to-live for cached passwords in seconds (default: 604800 = 7 days, set to 0 for session-only)
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## Usage
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### Folder-level Encryption
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Configure folders to be encrypted by adding them to the `encryptedFolders` option:
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```typescript
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Plugin.Encrypt({
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encryptedFolders: {
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"private/": "my-secret-password",
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"work/": "work-password",
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"personal/diary/": "diary-password",
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},
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})
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```
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All pages within these folders will be encrypted with the specified password. Nested folders inherit passwords from parent folders, with deeper paths taking precedence.
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### Page-level Encryption
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Use frontmatter to encrypt individual pages or override folder passwords:
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```yaml
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---
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title: "My Secret Page"
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encrypt: true
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password: "page-specific-password"
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encrypt_message: "Sorry, this one is only for my eyes,"
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---
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This content will be encrypted and require a password to view.
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```
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### Frontmatter Fields
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The plugin recognizes these frontmatter fields:
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- `encrypt`: Set to `true` to enable encryption for this page
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- `password`: The password required to decrypt this page
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- `encrypt_message`: Message to be shown on the unlock page.
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If a page is in an encrypted folder but has its own `password` field, the page-specific password will be used instead of the folder password.
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### Security Considerations
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- Use strong passwords for sensitive content
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- Consider using AES-256-GCM mode for authenticated encryption
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- The default 100,000 PBKDF2 iterations provide good security but can be increased for higher security needs, or decreased for slow devices
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- ECB mode is provided for compatibility but is not recommended for security-critical applications
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## Security Features
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### Password Cache
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The plugin implements intelligent password caching:
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- Passwords are cached in browser localStorage
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- Configurable TTL (time-to-live) for automatic cache expiration
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- Passwords are automatically tried when navigating to encrypted pages
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### Content Protection
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- **Full Content Encryption**: The entire HTML content is encrypted, not just hidden
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- **SEO Protection**: Search engines and RSS feeds see generic placeholder descriptions
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- **Client-side Decryption**: Content is never transmitted in plain text
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- **Secure Key Derivation**: Uses PBKDF2 with configurable iterations
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- **Password Verification**: Fast password hash verification before attempting decryption
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## API
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- Category: Transformer
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- Function name: `Plugin.Encrypt()`.
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- Source: [`quartz/plugins/transformers/encrypt.ts`](https://github.com/jackyzha0/quartz/blob/v4/quartz/plugins/transformers/encrypt.ts).
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