name: aws_sigv4
long: aws-sigv4
value: PROVIDER1[:PROVIDER2[:REGION[:SERVICE]]]
help: Use AWS V4 signature authentication in the transfer
help_heading: HTTP options
---
Generate an `Authorization` header with an AWS SigV4 signature.

Use [`-u, --user`](#user) to specify Access Key Id (username) and Secret Key (password).

To use temporary session credentials (e.g. for an AWS IAM Role), add the `X-Amz-Security-Token` header containing the session token.
