AWS SDK Version 3 for .NET
API Reference

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Attaches a key policy to the specified KMS key.

For more information about key policies, see Key Policies in the Key Management Service Developer Guide. For help writing and formatting a JSON policy document, see the IAM JSON Policy Reference in the Identity and Access Management User Guide. For examples of adding a key policy in multiple programming languages, see Setting a key policy in the Key Management Service Developer Guide.

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

Required permissions: kms:PutKeyPolicy (key policy)

Related operations: GetKeyPolicy

Note:

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

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

Syntax

C#
public virtual PutKeyPolicyResponse PutKeyPolicy(
         PutKeyPolicyRequest request
)
Parameters
request
Type: Amazon.KeyManagementService.Model.PutKeyPolicyRequest

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

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

Exceptions

ExceptionCondition
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.
LimitExceededException The request was rejected because a quota was exceeded. For more information, see Quotas in the Key Management Service Developer Guide.
MalformedPolicyDocumentException The request was rejected because the specified policy is not syntactically or semantically correct.
NotFoundException The request was rejected because the specified entity or resource could not be found.
UnsupportedOperationException The request was rejected because a specified parameter is not supported or a specified resource is not valid for this operation.

Examples

The following example attaches a key policy to the specified KMS key.

To attach a key policy to a KMS key


            var client = new AmazonKeyManagementServiceClient();
            var response = client.PutKeyPolicy(new PutKeyPolicyRequest 
            {
                KeyId = "1234abcd-12ab-34cd-56ef-1234567890ab", // The identifier of the KMS key to attach the key policy to. You can use the key ID or the Amazon Resource Name (ARN) of the KMS key.
                Policy = "{
    \"Version\": \"2012-10-17\",
    \"Id\": \"custom-policy-2016-12-07\",
    \"Statement\": [
        {
            \"Sid\": \"Enable IAM User Permissions\",
            \"Effect\": \"Allow\",
            \"Principal\": {
                \"AWS\": \"arn:aws:iam::111122223333:root\"
            },
            \"Action\": \"kms:*\",
            \"Resource\": \"*\"
        },
        {
            \"Sid\": \"Allow access for Key Administrators\",
            \"Effect\": \"Allow\",
            \"Principal\": {
                \"AWS\": [
                    \"arn:aws:iam::111122223333:user/ExampleAdminUser\",
                    \"arn:aws:iam::111122223333:role/ExampleAdminRole\"
                ]
            },
            \"Action\": [
                \"kms:Create*\",
                \"kms:Describe*\",
                \"kms:Enable*\",
                \"kms:List*\",
                \"kms:Put*\",
                \"kms:Update*\",
                \"kms:Revoke*\",
                \"kms:Disable*\",
                \"kms:Get*\",
                \"kms:Delete*\",
                \"kms:ScheduleKeyDeletion\",
                \"kms:CancelKeyDeletion\"
            ],
            \"Resource\": \"*\"
        },
        {
            \"Sid\": \"Allow use of the key\",
            \"Effect\": \"Allow\",
            \"Principal\": {
                \"AWS\": \"arn:aws:iam::111122223333:role/ExamplePowerUserRole\"
            },
            \"Action\": [
                \"kms:Encrypt\",
                \"kms:Decrypt\",
                \"kms:ReEncrypt*\",
                \"kms:GenerateDataKey*\",
                \"kms:DescribeKey\"
            ],
            \"Resource\": \"*\"
        },
        {
            \"Sid\": \"Allow attachment of persistent resources\",
            \"Effect\": \"Allow\",
            \"Principal\": {
                \"AWS\": \"arn:aws:iam::111122223333:role/ExamplePowerUserRole\"
            },
            \"Action\": [
                \"kms:CreateGrant\",
                \"kms:ListGrants\",
                \"kms:RevokeGrant\"
            ],
            \"Resource\": \"*\",
            \"Condition\": {
                \"Bool\": {
                    \"kms:GrantIsForAWSResource\": \"true\"
                }
            }
        }
    ]
}
", // The key policy document.
                PolicyName = "default" // The name of the key policy.
            });


            

Version Information

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

See Also