AWS4-HMAC-SHA256
20110909T233600Z
20110909/us-east-1/host/aws4_request
dddd1902add08da1ac94782b05f9278c08dc7468db178a84f8950d93b30b1f35
AWS4-HMAC-SHA256
20110909T233600Z
20110909/us-east-1/host/aws4_request
dddd1902add08da1ac94782b05f9278c08dc7468db178a84f8950d93b30b1f35