1 / 3

Computer Security course – lecture 9 additions

Computer Security course – lecture 9 additions. Presented by Erland Jonsson Department of Computer Science and Engineering. Bell- LaPadula pros and cons. Advantages: A subject may not downgrade information Problems: High users can never talk to low users Only confidentiality

rogan-flores
Download Presentation

Computer Security course – lecture 9 additions

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Computer Securitycourse – lecture 9 additions Presented by Erland Jonsson Department of Computer Science and Engineering

  2. Bell- LaPadulapros and cons • Advantages: • A subject may not downgrade information • Problems: • High users can never talk to low users • Only confidentiality • Anyone can create an object with a higher classification • ”Float-up” (i.e. down-grade needed) • Does not address access control • Does not address covert channels Principle of tranquility – Subjects and objects may not change their security level once they are instantiated

  3. Swedish SecurityActors • KBM– Swedish Emergency Management Ageny (Krisberedskapsmyndigheten) - Emergency Management / Leading Role[->Myndigheten för Samhällskydd och Beredskap from 2009] • PTS– National Post and Telecom Agency(Post och Telestyrelsen) – IT incidents (CERT) • FMV– Swedish Defence Material Administra-tion (Försvarets Materielverk) - certification • FRA– National Defence Radio Establish-ment (Försvarets Radioanstalt) – crypto certification

More Related