Accession Number:

ADA011696

Title:

Downgrading in a Secure Multilevel Computer System: The Formulary Concept

Descriptive Note:

Corporate Author:

MITRE CORP BEDFORD MA

Personal Author(s):

Report Date:

1975-05-01

Pagination or Media Count:

62.0

Abstract:

The tasks to be performed during the development of the Secure Multilevel Data Base System include the construction of a capability for the transformation of data of higher levels of classification to data at lower levels. The capability is to be part of a system in which access control is based upon a security kernel for the PDP-1145. In this report a mechanism for facilitating downward transformations is developed, and the impact of the mechanism upon both the Bell-LaPadula model of secure computer systems and the security kernel is discussed. An expository treatment of the model and kernel is also included.

Subject Categories:

  • Computer Systems Management and Standards

Distribution Statement:

APPROVED FOR PUBLIC RELEASE