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Subject: Attribute values or the lack therof
Hi fellow SAML'ers, How should an implementation send an empty value (i.e. like a NO-VALUE value in a database) for an attribute? The first idea I had was to send an Attribute element with no AttributeValue but that seems to be explicitly forbidden by the schema (no minOccurs attribute which means 1 is required, I think). The second idea I had was to just specify an empty element (like <AttributeValue/> or <AttributeValue></AttributeValue>) but section 1.2.1 of the core spec (Assertions and Protocol, etc.) seems to disallow this. A similar problem comes up with trying to send an empty string (i.e. ""). Have any other implementers solved this? David -- Obligatory .signatory David Warren phone: 781-515-7152 RSA Security Inc., 174 Middlesex Turnpike, Bedford, MA 01730 dwarren@rsasecurity.com
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