> For the complete documentation index, see [llms.txt](https://docs.vngcloud.vn/vng-cloud-document/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.vngcloud.vn/vng-cloud-document/key-management-system.md).

# Key Management System

GreenNode KMS helps users manage keys securely and efficiently. GreenNode supports users with two types of keys:

* GreenNode Managed Key: Keys automatically created by GreenNode upon request when users utilize GreenNode services, completely free of charge. Users can only view the key details.
* Customer Managed Key: Keys created or imported by users in GreenNode's KMS system. Users can change the status of the keys or delete them when they are no longer needed.


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