You can configure multiple authentication types to access Amazon S3.
Before you configure the connection properties, you need to keep the authentication details handy based on the authentication type that you want to use.
Basic authentication requires access key and secret key values from your AWS account.
IAM authentication requires only the folder path to the Amazon S3 objects. The EC2 role must have access to the folder.
AssumeRole via EC2 role authentication requires you to enable the EC2 role to assume another IAM role specified in the IAM Role ARN option.
AssumeRole via IAM user authentication requires the access key and secret key values of the IAM user and the ARN of the IAM role.
Credential profile file authentication requires the credential profile file path and profile name.
Federated user single sign-on authentication requires the user name and password of the federated user, IdP SSO URL, ARN of the SAML identity provider, and ARN of the IAM role assumed by the federated user. You can only use ADFS 3.0 (IDP) for SSO.