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- Submitted-by: nick@usenix.org (Nicholas M. Stoughton)
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- USENIX Standards Report Editor
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- Nicholas M. Stoughton <nick@usenix.org>, Report Editor
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- POSIX.22: Computer Security Framework
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- Randall Wayne Simons <rsimons@somnet.sandia.gov> reports on
- the January 10-14, 1994 meeting in Irvine, Ca.:
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- The POSIX.22 committee is defining a framework for
- distributed computer security. The framework will be a
- common reference model to guide members of other POSIX
- committees in addressing security needs in the standards
- they are defining.
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- This was the first POSIX meeting I have attended, and my
- main impression was of heads silently bowed over clacking
- keyboards as multiple laptops were simultaneously applied to
- modifying a document. David Rogers, chair of the committee,
- brought a troff version of the X/Open Snapshot called the
- ``Distributed Security Framework''. POSIX.22 wants to keep
- the X/Open and POSIX documents in sync since both groups are
- working on the same problem. The most recent version of the
- document had just been reviewed by X/Open, and there were
- numerous suggestions for improvement, including many that
- required some restructuring of the document. POSIX.22 took
- on this task, and simultaneously reviewed and added their
- own improvements. Different sections of the document were
- handed out to each committee member who then did the
- cutting, pasting, and merging.
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- The reorganized document starts by introducing top level
- information system security concepts, terms and models.
- There is a description of threats, most of which got moved
- to an appendix. More detailed models define security
- architectures and characteristics of interfaces to security
- services. Finally, the individual services and interfaces
- are modeled and described in detail. Interfaces support
- both management and operational functions for each of the
- services.
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- The basic services included are: authentication, access
- control, security audit and cryptographic services. At a
- higher level, domain interaction services, which combine
- various basic services in a distributed environment, include
- user authentication and secure association service.
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- After more review and revision by both X/Open and POSIX.22,
- the Framework document should be ready for balloting around
- July. The balloting group should form in April, so watch
- out for it. POSIX.22 had seven people at this meeting, and
- there was plenty of work to go around. Anyone willing and
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- able to help develop the POSIX Computer Security Framework
- would be welcome at future meetings. In general, there is
- much to be done in security for POSIX - see the report from
- POSIX.6.
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- Volume-Number: Volume 34, Number 2
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