Long: aws-sigv4
Arg: <provider1[:provider2[:region[:service]]]>
Help: Use AWS V4 signature authentication
Category: auth http
Added: 7.75.0
---
Use AWS V4 signature authentication in the transfer.

The provider argument is a string that is used by the algorithm when creating
outgoing authentication headers.

The region argument is a string that points to a geographic area of
a resources collection (region-code) when the region name is omitted from
the endpoint.

The service argument is a string that points to a function provided by a cloud
(service-code) when the service name is omitted from the endpoint.