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And a lot of coffee.  @$(  r  S $ `}   r  S  `  H  0޽h ? 33  P$(  r  S  `}   r  S D= ` = H  0޽h ? 33r1 # W@CB$ /D$T3( / 0LDArialL h 0Wo 0T" ` .  @n?" dd@  @@`` X*a     _b$oh t   Node Cluster Services_In a multiple-machine node, each component requires a cert However, if components do not communicate externally, do not need outside CA Local CA set up at install time, certs issued to all node components If remote access required (remote control), user identity certs may be issued by the node administrator (tight control of outside access possible)`Z`,XS Insecure ToolkitIn some environments, security may not matter at all Toolkit supports the use of entirely insecure communications No certificates required All messaging in the clear Appropriate for closed networks I worry about compromise potential on the open Internet*Z8Z8   Web ServicesGrid-based computing moving toward Web Services for high-level communication SOAP + WSDL + high level Web Service interface WS-Resource  resource management WS-Service Group  service registry WS-Security  secure communications&}j}j## WS-SecuritySOAP enhancements for Message integrity Message confidentiality Single-message authentication Encoding of security tokens As WS technology matures, AG project will track the security work Likely to still utilize X509 PKI, retaining utility of Certificate Management tools<ZdZZd$$Linkage to other projectsDepending on user requirements, and based on our support of the Globus PKI mechanisms, possible to support such things as Kerberos-based authentication, via KX509 SAML/Shibboleth for interaction with web-based single sign-on systems Akenti for access control&zz>@3g  Credits\This work supported by & . 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