| Interface | Description | 
|---|---|
| AwsCredentials | Represents credentials used to authenticate with Amazon Web Services. | 
| Credentials | Base interface for credentials used for different authentication purposes. | 
| HttpHeaderCredentials | Credentials that can be used to login to a protected server, e.g. | 
| PasswordCredentials | A username/password credentials that can be used to login to something protected by a username and password. |