---
title: KMS Custom Key Store
description: Datadog, the leading service for cloud-scale monitoring.
breadcrumbs: Docs > DDSQL Reference > Data Directory > KMS Custom Key Store
---

# KMS Custom Key Store

This table represents the KMS Custom Key Store resource from Amazon Web Services.

```
aws.kms_custom_key_store
```

## Fields

| Title                    | ID   | Type       | Data Type                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      | Description |
| ------------------------ | ---- | ---------- | --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------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| ----------- |
| _key                     | core | string     |
| account_id               | core | string     |
| cloud_hsm_cluster_id     | core | string     | A unique identifier for the CloudHSM cluster that is associated with an CloudHSM key store. This field appears only when the <code>CustomKeyStoreType</code> is <code>AWS_CLOUDHSM</code>.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          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| connection_error_code    | core | string     | Describes the connection error. This field appears in the response only when the <code>ConnectionState</code> is <code>FAILED</code>. Many failures can be resolved by updating the properties of the custom key store. To update a custom key store, disconnect it (<a>DisconnectCustomKeyStore</a>), correct the errors (<a>UpdateCustomKeyStore</a>), and try to connect again (<a>ConnectCustomKeyStore</a>). For additional help resolving these errors, see <a href="https://docs.aws.amazon.com/kms/latest/developerguide/fix-keystore.html#fix-keystore-failed">How to Fix a Connection Failure</a> in <i>Key Management Service Developer Guide</i>. <b>All custom key stores:</b> <ul> <li> <code>INTERNAL_ERROR</code> — KMS could not complete the request due to an internal error. Retry the request. For <code>ConnectCustomKeyStore</code> requests, disconnect the custom key store before trying to connect again. </li> <li> <code>NETWORK_ERRORS</code> — Network errors are preventing KMS from connecting the custom key store to its backing key store. </li> </ul> <b>CloudHSM key stores:</b> <ul> <li> <code>CLUSTER_NOT_FOUND</code> — KMS cannot find the CloudHSM cluster with the specified cluster ID. </li> <li> <code>INSUFFICIENT_CLOUDHSM_HSMS</code> — The associated CloudHSM cluster does not contain any active HSMs. To connect a custom key store to its CloudHSM cluster, the cluster must contain at least one active HSM. </li> <li> <code>INSUFFICIENT_FREE_ADDRESSES_IN_SUBNET</code> — At least one private subnet associated with the CloudHSM cluster doesn't have any available IP addresses. A CloudHSM key store connection requires one free IP address in each of the associated private subnets, although two are preferable. For details, see <a href="https://docs.aws.amazon.com/kms/latest/developerguide/fix-keystore.html#fix-keystore-failed">How to Fix a Connection Failure</a> in the <i>Key Management Service Developer Guide</i>. </li> <li> <code>INVALID_CREDENTIALS</code> — The <code>KeyStorePassword</code> for the custom key store doesn't match the current password of the <code>kmsuser</code> crypto user in the CloudHSM cluster. Before you can connect your custom key store to its CloudHSM cluster, you must change the <code>kmsuser</code> account password and update the <code>KeyStorePassword</code> value for the custom key store. </li> <li> <code>SUBNET_NOT_FOUND</code> — A subnet in the CloudHSM cluster configuration was deleted. If KMS cannot find all of the subnets in the cluster configuration, attempts to connect the custom key store to the CloudHSM cluster fail. To fix this error, create a cluster from a recent backup and associate it with your custom key store. (This process creates a new cluster configuration with a VPC and private subnets.) For details, see <a href="https://docs.aws.amazon.com/kms/latest/developerguide/fix-keystore.html#fix-keystore-failed">How to Fix a Connection Failure</a> in the <i>Key Management Service Developer Guide</i>. </li> <li> <code>USER_LOCKED_OUT</code> — The <code>kmsuser</code> CU account is locked out of the associated CloudHSM cluster due to too many failed password attempts. Before you can connect your custom key store to its CloudHSM cluster, you must change the <code>kmsuser</code> account password and update the key store password value for the custom key store. </li> <li> <code>USER_LOGGED_IN</code> — The <code>kmsuser</code> CU account is logged into the associated CloudHSM cluster. This prevents KMS from rotating the <code>kmsuser</code> account password and logging into the cluster. Before you can connect your custom key store to its CloudHSM cluster, you must log the <code>kmsuser</code> CU out of the cluster. If you changed the <code>kmsuser</code> password to log into the cluster, you must also and update the key store password value for the custom key store. For help, see <a href="https://docs.aws.amazon.com/kms/latest/developerguide/fix-keystore.html#login-kmsuser-2">How to Log Out and Reconnect</a> in the <i>Key Management Service Developer Guide</i>. </li> <li> <code>USER_NOT_FOUND</code> — KMS cannot find a <code>kmsuser</code> CU account in the associated CloudHSM cluster. Before you can connect your custom key store to its CloudHSM cluster, you must create a <code>kmsuser</code> CU account in the cluster, and then update the key store password value for the custom key store. </li> </ul> <b>External key stores:</b> <ul> <li> <code>INVALID_CREDENTIALS</code> — One or both of the <code>XksProxyAuthenticationCredential</code> values is not valid on the specified external key store proxy. </li> <li> <code>XKS_PROXY_ACCESS_DENIED</code> — KMS requests are denied access to the external key store proxy. If the external key store proxy has authorization rules, verify that they permit KMS to communicate with the proxy on your behalf. </li> <li> <code>XKS_PROXY_INVALID_CONFIGURATION</code> — A configuration error is preventing the external key store from connecting to its proxy. Verify the value of the <code>XksProxyUriPath</code>. </li> <li> <code>XKS_PROXY_INVALID_RESPONSE</code> — KMS cannot interpret the response from the external key store proxy. If you see this connection error code repeatedly, notify your external key store proxy vendor. </li> <li> <code>XKS_PROXY_INVALID_TLS_CONFIGURATION</code> — KMS cannot connect to the external key store proxy because the TLS configuration is invalid. Verify that the XKS proxy supports TLS 1.2 or 1.3. Also, verify that the TLS certificate is not expired, and that it matches the hostname in the <code>XksProxyUriEndpoint</code> value, and that it is signed by a certificate authority included in the <a href="https://github.com/aws/aws-kms-xksproxy-api-spec/blob/main/TrustedCertificateAuthorities">Trusted Certificate Authorities</a> list. </li> <li> <code>XKS_PROXY_NOT_REACHABLE</code> — KMS can't communicate with your external key store proxy. Verify that the <code>XksProxyUriEndpoint</code> and <code>XksProxyUriPath</code> are correct. Use the tools for your external key store proxy to verify that the proxy is active and available on its network. Also, verify that your external key manager instances are operating properly. Connection attempts fail with this connection error code if the proxy reports that all external key manager instances are unavailable. </li> <li> <code>XKS_PROXY_TIMED_OUT</code> — KMS can connect to the external key store proxy, but the proxy does not respond to KMS in the time allotted. If you see this connection error code repeatedly, notify your external key store proxy vendor. </li> <li> <code>XKS_VPC_ENDPOINT_SERVICE_INVALID_CONFIGURATION</code> — The Amazon VPC endpoint service configuration doesn't conform to the requirements for an KMS external key store. <ul> <li> The VPC endpoint service must be an endpoint service for interface endpoints in the caller's Amazon Web Services account. </li> <li> It must have a network load balancer (NLB) connected to at least two subnets, each in a different Availability Zone. </li> <li> The <code>Allow principals</code> list must include the KMS service principal for the Region, <code>cks.kms.&lt;region&gt;.amazonaws.com</code>, such as <code>cks.kms.us-east-1.amazonaws.com</code>. </li> <li> It must <i>not</i> require <a href="https://docs.aws.amazon.com/vpc/latest/privatelink/create-endpoint-service.html">acceptance</a> of connection requests. </li> <li> It must have a private DNS name. The private DNS name for an external key store with <code>VPC_ENDPOINT_SERVICE</code> connectivity must be unique in its Amazon Web Services Region. </li> <li> The domain of the private DNS name must have a <a href="https://docs.aws.amazon.com/vpc/latest/privatelink/verify-domains.html">verification status</a> of <code>verified</code>. </li> <li> The <a href="https://docs.aws.amazon.com/elasticloadbalancing/latest/network/create-tls-listener.html">TLS certificate</a> specifies the private DNS hostname at which the endpoint is reachable. </li> </ul> </li> <li> <code>XKS_VPC_ENDPOINT_SERVICE_NOT_FOUND</code> — KMS can't find the VPC endpoint service that it uses to communicate with the external key store proxy. Verify that the <code>XksProxyVpcEndpointServiceName</code> is correct and the KMS service principal has service consumer permissions on the Amazon VPC endpoint service. </li> </ul> |
| connection_state         | core | string     | Indicates whether the custom key store is connected to its backing key store. For an CloudHSM key store, the <code>ConnectionState</code> indicates whether it is connected to its CloudHSM cluster. For an external key store, the <code>ConnectionState</code> indicates whether it is connected to the external key store proxy that communicates with your external key manager. You can create and use KMS keys in your custom key stores only when its <code>ConnectionState</code> is <code>CONNECTED</code>. The <code>ConnectionState</code> value is <code>DISCONNECTED</code> only if the key store has never been connected or you use the <a>DisconnectCustomKeyStore</a> operation to disconnect it. If the value is <code>CONNECTED</code> but you are having trouble using the custom key store, make sure that the backing key store is reachable and active. For an CloudHSM key store, verify that its associated CloudHSM cluster is active and contains at least one active HSM. For an external key store, verify that the external key store proxy and external key manager are connected and enabled. A value of <code>FAILED</code> indicates that an attempt to connect was unsuccessful. The <code>ConnectionErrorCode</code> field in the response indicates the cause of the failure. For help resolving a connection failure, see <a href="https://docs.aws.amazon.com/kms/latest/developerguide/fix-keystore.html">Troubleshooting a custom key store</a> in the <i>Key Management Service Developer Guide</i>.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                           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| creation_date            | core | timestamp  | The date and time when the custom key store was created.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      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| custom_key_store_id      | core | string     | A unique identifier for the custom key store.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          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| custom_key_store_name    | core | string     | The user-specified friendly name for the custom key store.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                             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| custom_key_store_type    | core | string     | Indicates the type of the custom key store. <code>AWS_CLOUDHSM</code> indicates a custom key store backed by an CloudHSM cluster. <code>EXTERNAL_KEY_STORE</code> indicates a custom key store backed by an external key store proxy and external key manager outside of Amazon Web Services.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                 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| tags                     | core | hstore_csv |
| trust_anchor_certificate | core | string     | The trust anchor certificate of the CloudHSM cluster associated with an CloudHSM key store. When you <a href="https://docs.aws.amazon.com/cloudhsm/latest/userguide/initialize-cluster.html#sign-csr">initialize the cluster</a>, you create this certificate and save it in the <code>customerCA.crt</code> file. This field appears only when the <code>CustomKeyStoreType</code> is <code>AWS_CLOUDHSM</code>.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                 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| xks_proxy_configuration  | core | json       | Configuration settings for the external key store proxy (XKS proxy). The external key store proxy translates KMS requests into a format that your external key manager can understand. The proxy configuration includes connection information that KMS requires. This field appears only when the <code>CustomKeyStoreType</code> is <code>EXTERNAL_KEY_STORE</code>.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                           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