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New API Documentation - Developer Preview Available

We are excited to announce the developer preview of our new API documentation for AWS SDK for JavaScript v3. Please follow instructions on the landing page to leave us your feedback.

Interface XksProxyAuthenticationCredentialType

KMS uses the authentication credential to sign requests that it sends to the external key store proxy (XKS proxy) on your behalf. You establish these credentials on your external key store proxy and report them to KMS.

The XksProxyAuthenticationCredential includes two required elements.


  • XksProxyAuthenticationCredentialType


AccessKeyId: undefined | string

A unique identifier for the raw secret access key.

RawSecretAccessKey: undefined | string

A secret string of 43-64 characters. Valid characters are a-z, A-Z, 0-9, /, +, and =.