AWS GovCloud (US) User Guide
AWS GovCloud (US) User Guide

AWS Key Management Service

The following list details the differences for using this service in the AWS GovCloud (US) Region compared to other AWS regions:

  • The Custom Key Stores feature is not available in AWS GovCloud (US).

  • Asymmetric customer master keys (CMKs) and asymmetric data keys are not available in AWS GovCloud (US-East) and AWS GovCloud (US-West) Regions. The following APIs for asymmetric CMKs and data keys are not supported:

    • GenerateDataKeyPair

    • GenerateDataKeyPairWithoutPlaintext

    • GetPublicKey

    • Sign

    • Verify

For more information about AWS KMS, see the AWS Key Management Service Developer Guide.

ITAR Boundary

AWS GovCloud (US) has an ITAR boundary, which defines where customers are allowed to store ITAR-controlled data for this service in AWS GovCloud (US) Regions. To maintain ITAR compliance, you must place ITAR-controlled data on the applicable part of the ITAR boundary. If you do not have any ITAR-controlled data in AWS GovCloud (US) Regions, this section does not apply to you. The following information identifies the ITAR boundary for this service:

ITAR-Regulated Data Permitted

ITAR-Regulated Data Not Permitted

  • All data encrypted with an AWS KMS key contains ITAR-regulated data

  • AWS KMS metadata is not permitted to contain ITAR-regulated data. Do not enter ITAR-regulated data in the following fields:

    • Alias

    • Descriptions

    • Key policy documents, including key administrators and key users

  • The Encryption Context is outside the ITAR boundary.

  • AWS KMS generated metadata will not contain ITAR-regulated data:

    • Key ID

    • Key ARN

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