XKMS 2.0 X-KISS & X-KRSS
- XML Key Information Service Specification (X-KISS)
    - locate a public key
- validate a public key
- extract information from a public key certificate
 
- XML Key Registration Services Specification (X-KRSS)
    - register
- reissue
- revoke
- recover
 
- Can be synchronous or asynchronous
- SOAP 1.2 bindings; SOAP 1.1 bindings for compatibility with previous versions
