AWS SDK Version 3 for .NET
API Reference

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Gets a key policy attached to the specified KMS key.

Cross-account use: No. You cannot perform this operation on a KMS key in a different Amazon Web Services account.

Required permissions: kms:GetKeyPolicy (key policy)

Related operations: PutKeyPolicy


For .NET Core this operation is only available in asynchronous form. Please refer to GetKeyPolicyAsync.

Namespace: Amazon.KeyManagementService
Assembly: AWSSDK.KeyManagementService.dll
Version: 3.x.y.z


public virtual GetKeyPolicyResponse GetKeyPolicy(
         GetKeyPolicyRequest request
Type: Amazon.KeyManagementService.Model.GetKeyPolicyRequest

Container for the necessary parameters to execute the GetKeyPolicy service method.

Return Value
The response from the GetKeyPolicy service method, as returned by KeyManagementService.


DependencyTimeoutException The system timed out while trying to fulfill the request. The request can be retried.
InvalidArnException The request was rejected because a specified ARN, or an ARN in a key policy, is not valid.
KMSInternalException The request was rejected because an internal exception occurred. The request can be retried.
KMSInvalidStateException The request was rejected because the state of the specified resource is not valid for this request. For more information about how key state affects the use of a KMS key, see Key state: Effect on your KMS key in the Key Management Service Developer Guide.
NotFoundException The request was rejected because the specified entity or resource could not be found.


The following example retrieves the key policy for the specified KMS key.

To retrieve a key policy

var client = new AmazonKeyManagementServiceClient();
var response = client.GetKeyPolicy(new GetKeyPolicyRequest 
    KeyId = "1234abcd-12ab-34cd-56ef-1234567890ab", // The identifier of the KMS key whose key policy you want to retrieve. You can use the key ID or the Amazon Resource Name (ARN) of the KMS key.
    PolicyName = "default" // The name of the key policy to retrieve.

string policy = response.Policy; // The key policy document.


Version Information

.NET Framework:
Supported in: 4.5, 4.0, 3.5

See Also