AWS SDK Version 3 for .NET
API Reference

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Creates a display name for a customer master key. An alias can be used to identify a key and should be unique. The console enforces a one-to-one mapping between the alias and a key. An alias name can contain only alphanumeric characters, forward slashes (/), underscores (_), and dashes (-). An alias must start with the word "alias" followed by a forward slash (alias/). An alias that begins with "aws" after the forward slash (alias/aws...) is reserved by Amazon Web Services (AWS).

The alias and the key it is mapped to must be in the same AWS account and the same region.

To map an alias to a different key, call UpdateAlias.

Note:

This is an asynchronous operation using the standard naming convention for .NET 4.5 or higher. For .NET 3.5 the operation is implemented as a pair of methods using the standard naming convention of BeginCreateAlias and EndCreateAlias.

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

Syntax

C#
public virtual Task<CreateAliasResponse> CreateAliasAsync(
         String aliasName,
         String targetKeyId,
         CancellationToken cancellationToken
)
Parameters
aliasName
Type: System.String

String that contains the display name. The name must start with the word "alias" followed by a forward slash (alias/). Aliases that begin with "alias/AWS" are reserved.

targetKeyId
Type: System.String

An identifier of the key for which you are creating the alias. This value cannot be another alias but can be a globally unique identifier or a fully specified ARN to a key. Key ARN Example - arn:aws:kms:us-east-1:123456789012:key/12345678-1234-1234-1234-123456789012 Globally Unique Key ID Example - 12345678-1234-1234-1234-123456789012

cancellationToken
Type: System.Threading.CancellationToken

A cancellation token that can be used by other objects or threads to receive notice of cancellation.

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

Exceptions

ExceptionCondition
AlreadyExistsException The request was rejected because it attempted to create a resource that already exists.
DependencyTimeoutException The system timed out while trying to fulfill the request. The request can be retried.
InvalidAliasNameException The request was rejected because the specified alias name 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 CMK, see How Key State Affects Use of a Customer Master Key in the AWS Key Management Service Developer Guide.
LimitExceededException The request was rejected because a limit was exceeded. For more information, see Limits in the AWS Key Management Service Developer Guide.
NotFoundException The request was rejected because the specified entity or resource could not be found.

Version Information

.NET Standard:
Supported in: 1.3

.NET Framework:
Supported in: 4.5

Portable Class Library:
Supported in: Windows Store Apps
Supported in: Windows Phone 8.1
Supported in: Xamarin Android
Supported in: Xamarin iOS (Unified)
Supported in: Xamarin.Forms

See Also