Represents an KeyDescriptor SAML metadata tag
Required. An instance of Mojo::SAML::Document::KeyInfo containing information about the relevant key.
A template specific to the document type.
A string indicating if this key is used for
encryption. This field should be optional, and when omitted it should indicate that the key is used for both uses. In practice, the author has seen services that require that if a key is used for both purposes, it should be specified twice, once for each use.