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*(star) Security Property
A property of the Bell–LaPadula model that states that a subject at a specific classification level cannot write data to a lower classification level. This is often shortened to “no write down. ”
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A property of the Bell–LaPadula model that states that a subject at a specific classification level cannot read data with a higher classification level. This is often shortened to “no read up. ”
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A formal state transition model of computer security policy that describes a set of access control rules that uses security labels on objects and clearances for subjects. It was developed by David E. Bell and Leonard J. LaPadula. BellLaPadula security model is for meeting the confidentiality security objective only.
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The principle that allows a process to read from and write to certain memory locations and resources only. This is an alternate name for the * (star) Security Property of the Bell–LaPadula model.
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An axiom of the Biba model that states that a subject at a specific classification level cannot write data to a higher classification level. This is often shortened to “no write up. ”
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An axiom of the Biba model that states that a subject at a specific classification level cannot read data with a lower classification level. This is often shortened to “no read down. ”
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