48 lines
1.0 KiB
Markdown
48 lines
1.0 KiB
Markdown
---
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layout: default
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title: Storage Backends
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parent: Configuration
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nav_order: 14
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has_children: true
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---
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**Authelia** supports multiple storage backends. The backend is used to store user preferences, 2FA device handles and
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secrets, authentication logs, etc...
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The available storage backends are listed in the table of contents below.
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## Configuration
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```yaml
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storage:
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encryption_key: a_very_important_secret
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local: {}
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mysql: {}
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postgres: {}
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```
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## Options
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### encryption_key
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<div markdown="1">
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type: string
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{: .label .label-config .label-purple }
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required: yes
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{: .label .label-config .label-red }
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</div>
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The encryption key used to encrypt data in the database. It has a minimum length of 20 and must be provided. We encrypt
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data by creating a sha256 checksum of the provided value, and use that to encrypt the data with the AES-GCM 256bit
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algorithm.
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The encrypted data in the database is as follows:
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- TOTP Secret
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### local
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See [SQLite](./sqlite.md).
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### mysql
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See [MySQL](./mysql.md).
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### postgres
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See [PostgreSQL](./postgres.md). |