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Presented by Erland Jonsson Department of Computer Science and Engineering.

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Presentation on theme: "Presented by Erland Jonsson Department of Computer Science and Engineering."— Presentation transcript:

1 Presented by Erland Jonsson Department of Computer Science and Engineering

2  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  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


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