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January 1, 1990203 citations

An architecture for practical delegation in a distributed system

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MGMorrie GasserEMEllen McDermott

Key Points

  • To develop a practical delegation architecture for distributed systems that provides cryptographic authorization, robust access control, precise auditing, and immediate on-demand revocation.
  • Designed a decentralized protocol combining cryptographic proof of delegation with mutual authentication of delegated systems.
  • Engineered an on-demand termination mechanism that invalidates delegation upon user logout without relying on centralized online trusted servers.
  • Enabled verifiable cryptographic authorization and fine-grained auditing of all intermediary systems involved in distributed access requests.
  • Secured delegation termination on demand, guaranteeing that compromised nodes cannot continue acting on behalf of logged-out users.

Abstract

A practical technique for delegation is described. It provides both cryptographic assurance that a delegation was authorized and authentication of the delegated systems, thereby allowing reliable access control as well as precise auditing of the systems involved in every access. It goes further than other approaches for delegation in that it also provides termination of a delegation on demand (as when the user logs out) with the assurance that the delegated systems, if subsequently compromised, cannot continue to act on the user's behalf. Delegation and revocation are provided by a simple mechanism that does not rely on online trusted servers.>

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Cite This Study

Gasser et al. (1990) studied this question.

synapsesocial.com/papers/6a193b6ba0353395e9580cbdhttps://doi.org/10.1109/risp.1990.63835
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