Innovations for Grid Security from Trusted Computing <A HREF="http://www.hpl.hp.com/personal/Wenbo_Mao/research/tcgridsec.pdf" target="_blank">http://www.hpl.hp.com/personal/Wenbo_Mao/research/tcgridsec.pdf</A> Chapter 7 (13) "...Attestation servers are available from multiple vendors, including Verisign and Wave Systems,..." HP knows: Infineon for HP machines WAVE for the complete server structure and other PCs ISPRO