draft-ggf-ogsa-sec-roadmap-01.doc

Tactical specification is required that describes how

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tactical specification is required that describes how existing Generic Secure Services API (GSSAPI)-accessible [GSSAPI] mechanisms can be used to provide the required session- based security. Once the WS-SecureConversation specification is available, this tactical specification should be reconciled to reflect the standardized protocol. 4.4.1. GSSAPI-SecureConversation Specification This tactical specification defines how GSSAPI-accessible mechanisms can be used for context establishment and per-message protection for OGSA peer-to-peer communication. The scheme should allow the use of any GSSAPI-accessible mechanism, in particular the Grid Security Infrastructure [GSI] and Kerberos. The name “GSSAPI-SecureConversation” reflects that this specification is meant to fill temporarily the void that will be filled by the WS-SecureConversation specification. 4.5. Pluggable Authorization Service The OGSA Security Architecture document describes the need for authorization services that can be called by both requestor and service providers to enforce policy. Any interaction between two parties requires that authorization decisions be made on both ends. The requester verifies that its policy allows it to invoke the request on the service provider, while the server checks whether its policy allows the request to be serviced. The policy rules on each end can be simple or complicated, but must in general be able to answer the question of whether a subject is allowed to invoke—or service—a particular operation/action on a resource, i.e., the target. Policy decisions can be communicated back by the caller as either Boolean results or authorization/capability assertions. It is desirable from a deployment and management perspective that an authorization service be pluggable : i.e., that it can be integrated into applications via a well-defined interface. Pluggability facilitates deployment of OGSA components in environments where existing policy enforcement tools are in place. [email protected] 13
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GWD-I ( draft-ggf-ogsa-sec-roadmap-01 ) Revised 6/14/2018 4.5.1. OGSA-Authorization Service Specification This specification defines an OGSA service that, as discussed above, provides policy evaluation functions for authorization decisions. In defining this specification, we must consider various specifications that are addressing different aspects of this functionality, including SAML, XACML, XrML, and WS-Authorization. [SAML, XACML, XRML, WS-AUTHORIZATION] 4.6. Authorization Policy Management This subsection and the three that follow (Sections 4.7, 4.8, and 4.9) address security policy management issues. A number of services will have authorization policy that can be managed by traditional site administrators and, particularly in the case of transient services, by users.
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