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High-Water Mark (computer security): Watermark (data synchronization), Access Control Matrix, Bell-La Padula Model -

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2026-03-11
128,12 € 213,53 €

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Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. High-water mark was introduced in Clark Weissmann's Security controls in the ADEPT-50 timesharing system published in the AFIPS Conference Proceedings, volume 35, pages 119-133. FJCC, 1969. It pre-dates the Bell-La Padula security model, whose first volume appeared in 1972. Under h ... Täielik kirjeldus

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Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. High-water mark was introduced in Clark Weissmann's Security controls in the ADEPT-50 timesharing system published in the AFIPS Conference Proceedings, volume 35, pages 119-133. FJCC, 1969. It pre-dates the Bell-La Padula security model, whose first volume appeared in 1972. Under high-water mark, any object less than the user's security level can be opened, but the object is relabeled to reflect the highest security level currently open. Hence the name. The practical effect of the high-water mark was a gradual movement of all objects towards the highest security level in the system. If user A is writing a CONFIDENTIAL document, and checks the unclassified dictionary, the dictionary becomes CONFIDENTIAL. Then, when user B is writing a SECRET report and checks the spelling of a word, the dictionary becomes SECRET. Finally, if user C is assigned to assemble the daily intelligence briefing at the TOP SECRET level, reference to the dictionary makes the dictionary TOP SECRET, too.

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Kirjastaja OmniScriptum
Väljalaskeaasta 2026
Kaanetüüp Pehme kaanega
EAN 9786132452269
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Te vaatate: High-Water Mark (computer security): Watermark (data synchronization), Access Control Matrix, Bell-La Padula Model
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128,12 € 213,53 €