> For the complete documentation index, see [llms.txt](https://knowledgebase.autorabit.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://knowledgebase.autorabit.com/product-guides/vault/configuring-vault/configure-backup-environment/amazon-aws-s3-storage-environment/bring-your-own-key-byok-with-vault.md).
# Bring Your Own Key (BYOK) with AutoRABIT Vault
## **Overview**
Using AutoRABIT Vault, you can implement **Bring Your Own Key (BYOK)** by importing encryption keys from **Amazon Web Services Key Management Service (AWS KMS)**. This feature is ideal for customers who want enhanced control over their encryption process — particularly for meeting internal security policies and regulatory requirements.
BYOK allows you to:
* Maintain ownership and lifecycle control over encryption keys.
* Leverage AWS KMS for encryption but retain exclusive control over key material.
* Enforce data sovereignty by managing keys independently of data storage.
## **Before You Begin**
Before configuring BYOK in AutoRABIT Vault, you must create a **Customer Master Key (CMK)** in your AWS account.
### Steps to create an AWS KMS CMK:
1. Log in to your [AWS Management Console](https://aws.amazon.com/console/).
2. Navigate to **Key Management Service (KMS)**.
3. Click **Create a Key** and follow the wizard to generate your CMK.
4. For detailed guidance, refer to the AWS documentation:\
[Getting Started with AWS KMS](https://docs.aws.amazon.com/kms/latest/developerguide/getting-started.html)
***
## **Using Key to Configure AWS-KMS in** AutoRABIT Vault
To use the key within AutoRABIT Vault:
1. Log in to your **AutoRABIT Vault** account.
2. Go to **Settings > Backup Environment**.
3. Under **Storage Environment**, select **AWS S3** as the storage type.
4. Choose the **Region** — this must match the region used during key creation in AWS KMS.
5. Enable the checkbox: **Automatically Encrypt data stored in AutoRABIT Vault.**
6. Select **AWS-KMS** as the encryption method.
7. Enter your **Master Key** (CMK ARN) from AWS KMS.
8. Enable the checkbox for **AR Vault Hosted Backup Environment**.
9. Click **Save Settings**.
Vault configuration for AWS-KMS BYOK setup
---
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