AWS Tools for Windows PowerShell
Command Reference

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Synopsis

Invokes the CreateKey operation against AWS Key Management Service.

Syntax

New-KMSKey
-BypassPolicyLockoutSafetyCheck <Boolean>
-Description <String>
-KeyUsage <KeyUsageType>
-Origin <OriginType>
-Policy <String>
-Tag <Tag[]>
-Force <SwitchParameter>

Description

Creates a customer master key (CMK). You can use a CMK to encrypt small amounts of data (4 KiB or less) directly, but CMKs are more commonly used to encrypt data encryption keys (DEKs), which are used to encrypt raw data. For more information about DEKs and the difference between CMKs and DEKs, see the following:

Parameters

-BypassPolicyLockoutSafetyCheck <Boolean>
A flag to indicate whether to bypass the key policy lockout safety check.Setting this value to true increases the likelihood that the CMK becomes unmanageable. Do not set this value to true indiscriminately.For more information, refer to the scenario in the Default Key Policy section in the AWS Key Management Service Developer Guide.Use this parameter only when you include a policy in the request and you intend to prevent the principal that is making the request from making a subsequent PutKeyPolicy request on the CMK.The default value is false.
Required?False
Position?Named
Accept pipeline input?False
-Description <String>
A description of the CMK.Use a description that helps you decide whether the CMK is appropriate for a task.
Required?False
Position?Named
Accept pipeline input?False
-Force <SwitchParameter>
This parameter overrides confirmation prompts to force the cmdlet to continue its operation. This parameter should always be used with caution.
Required?False
Position?Named
Accept pipeline input?False
-KeyUsage <KeyUsageType>
The intended use of the CMK.You can use CMKs only for symmetric encryption and decryption.
Required?False
Position?Named
Accept pipeline input?False
-Origin <OriginType>
The source of the CMK's key material.The default is AWS_KMS, which means AWS KMS creates the key material. When this parameter is set to EXTERNAL, the request creates a CMK without key material so that you can import key material from your existing key management infrastructure. For more information about importing key material into AWS KMS, see Importing Key Material in the AWS Key Management Service Developer Guide.The CMK's Origin is immutable and is set when the CMK is created.
Required?False
Position?Named
Accept pipeline input?False
-Policy <String>
The key policy to attach to the CMK.If you specify a policy and do not set BypassPolicyLockoutSafetyCheck to true, the policy must meet the following criteria:
  • It must allow the principal that is making the CreateKey request to make a subsequent PutKeyPolicy request on the CMK. This reduces the likelihood that the CMK becomes unmanageable. For more information, refer to the scenario in the Default Key Policy section in the AWS Key Management Service Developer Guide.
  • The principals that are specified in the key policy must exist and be visible to AWS KMS. When you create a new AWS principal (for example, an IAM user or role), you might need to enforce a delay before specifying the new principal in a key policy because the new principal might not immediately be visible to AWS KMS. For more information, see Changes that I make are not always immediately visible in the IAM User Guide.
If you do not specify a policy, AWS KMS attaches a default key policy to the CMK. For more information, see Default Key Policy in the AWS Key Management Service Developer Guide.The policy size limit is 32 KiB (32768 bytes).
Required?False
Position?Named
Accept pipeline input?False
-Tag <Tag[]>
One or more tags. Each tag consists of a tag key and a tag value. Tag keys and tag values are both required, but tag values can be empty (null) strings.Use this parameter to tag the CMK when it is created. Alternately, you can omit this parameter and instead tag the CMK after it is created using TagResource.
Required?False
Position?Named
Accept pipeline input?False

Common Credential and Region Parameters

-AccessKey <String>
The AWS access key for the user account. This can be a temporary access key if the corresponding session token is supplied to the -SessionToken parameter.
Required? False
Position? Named
Accept pipeline input? False
-Credential <AWSCredentials>
An AWSCredentials object instance containing access and secret key information, and optionally a token for session-based credentials.
Required? False
Position? Named
Accept pipeline input? False
-ProfileLocation <String>

Used to specify the name and location of the ini-format credential file (shared with the AWS CLI and other AWS SDKs)

If this optional parameter is omitted this cmdlet will search the encrypted credential file used by the AWS SDK for .NET and AWS Toolkit for Visual Studio first. If the profile is not found then the cmdlet will search in the ini-format credential file at the default location: (user's home directory)\.aws\credentials. Note that the encrypted credential file is not supported on all platforms. It will be skipped when searching for profiles on Windows Nano Server, Mac, and Linux platforms.

If this parameter is specified then this cmdlet will only search the ini-format credential file at the location given.

As the current folder can vary in a shell or during script execution it is advised that you use specify a fully qualified path instead of a relative path.

Required? False
Position? Named
Accept pipeline input? False
-ProfileName <String>
The user-defined name of an AWS credentials or SAML-based role profile containing credential information. The profile is expected to be found in the secure credential file shared with the AWS SDK for .NET and AWS Toolkit for Visual Studio. You can also specify the name of a profile stored in the .ini-format credential file used with the AWS CLI and other AWS SDKs.
Required? False
Position? Named
Accept pipeline input? False
-NetworkCredential <PSCredential>
Used with SAML-based authentication when ProfileName references a SAML role profile. Contains the network credentials to be supplied during authentication with the configured identity provider's endpoint. This parameter is not required if the user's default network identity can or should be used during authentication.
Required? False
Position? Named
Accept pipeline input? False
-SecretKey <String>
The AWS secret key for the user account. This can be a temporary secret key if the corresponding session token is supplied to the -SessionToken parameter.
Required? False
Position? Named
Accept pipeline input? False
-SessionToken <String>
The session token if the access and secret keys are temporary session-based credentials.
Required? False
Position? Named
Accept pipeline input? False
-Region <String>
The system name of the AWS region in which the operation should be invoked. For example, us-east-1, eu-west-1 etc.
Required? False
Position? Named
Accept pipeline input? False
-EndpointUrl <String>

The endpoint to make the call against.

Note: This parameter is primarily for internal AWS use and is not required/should not be specified for normal usage. The cmdlets normally determine which endpoint to call based on the region specified to the -Region parameter or set as default in the shell (via Set-DefaultAWSRegion). Only specify this parameter if you must direct the call to a specific custom endpoint.

Required? False
Position? Named
Accept pipeline input? False

Inputs

This cmdlet does not accept pipeline input.

Outputs

This cmdlet returns a KeyMetadata object. The service call response (type Amazon.KeyManagementService.Model.CreateKeyResponse) can also be referenced from properties attached to the cmdlet entry in the $AWSHistory stack.

Supported Version

AWS Tools for PowerShell: 2.x.y.z