Metadata, entitydescriptor, id attribute

[Steven Carmody]

Hi,

The entitydescriptor element has an optional attribute called id. The value, when present, is a big long opaque string with constraints on the value of the first character. In our campus metadata file some entities have this value; others don't. Xmlsectool, when validating, requires that any values that are present be unique.

My question is -- what value does this attribute provide ? Which component uses it ? How might we use it ?

I believe that the entitiesdescriptor element also has this optional attribute. In that case, tho, I believe the id attribute is useful when xmlsectool is signing a file.

Thanks!

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