<?xml version='1.0' encoding='UTF-8'?>
<xs:schema
  targetNamespace='openspime:protocol:core'
  version='0.9'
  elementFormDefault='qualified'
  xmlns:xs='http://www.w3.org/2001/XMLSchema'>
  <xs:element name='openspime'>
    <xs:complexType>
      <xs:sequence>
        <xs:element name='originator' minOccurs='0'>
          <xs:complexType>
            <xs:sequence>
              <xs:element name='sign' type='xs:string' minOccurs='0' />
              <xs:element name='claimkey' minOccurs='0'>
                <xs:complexType>
                  <xs:attribute name='cert' type='xs:string' use='required' />
                  <xs:attribute name='claims' type='xs:string' use='required' />
                </xs:complexType>
              </xs:element>
              <xs:any minOccurs='0' maxOccurs='unbounded' />
            </xs:sequence>
            <xs:attribute name='cert' type='xs:string' />
            <xs:attribute name='osid' type='xs:string' />
          </xs:complexType>
        </xs:element>
        <xs:element name='transport'>
          <xs:complexType>
            <xs:sequence>
              <xs:any namespace='##other' minOccurs='0' />
            </xs:sequence>
            <xs:attribute name='to' type='xs:string' />
            <xs:attribute name='content-type'>
              <xs:simpleType>
                <xs:restriction base='xs:string'>
                  <xs:enumeration value='text/plain' />
                  <xs:enumeration value='x-openspime/rsa-base64' />
                </xs:restriction>
              </xs:simpleType>
            </xs:attribute>
            <xs:attribute name='transport-key' type='xs:string' />
          </xs:complexType>
        </xs:element>
      </xs:sequence>
      <xs:attribute name='version'>
        <xs:simpleType>
          <xs:restriction base='xs:string'>
            <xs:pattern value='([0-9])+\.([0-9])+' />
          </xs:restriction>
        </xs:simpleType>
      </xs:attribute>
    </xs:complexType>
  </xs:element>
</xs:schema>