ocspLambdaArn

The Amazon Resource Name (ARN) for a Lambda function that acts as a Request for Comments (RFC) 6960-compliant Online Certificate Status Protocol (OCSP) responder, supporting basic OCSP responses. The Lambda function accepts a base64-encoding of the OCSP request in the Distinguished Encoding Rules (DER) format. The Lambda function's response is also a base64-encoded OCSP response in the DER format. The response size must not exceed 4 kilobytes (KiB). The Lambda function must be in the same Amazon Web Services account and region as the domain configuration. For more information, see Configuring server certificate OCSP for private endpoints in Amazon Web Services IoT Core from the Amazon Web Services IoT Core developer guide.