Extra Credit 2

Update. In problem 1, “page 170” has been corrected to be “page 18”.

Due: April 25, 2018 at 11:59pm
Points: 20

Questions

1. (10 points) In KeyNote, write an assertion that would allow the second action environment in the example on page 170 page 18 to satisfy the policy. For your assertion, the evaluator is to return _MAX_TRUST.

2. (10 points) Consider Amy’s problem of finding out if Danny is a good programmer in the first example of Section 6.5.2. Amy does not know Carole, so she asks Boris for a recommendation about Carole’s recommendation. Boris wants to assign a (recommender) trust level of 3 to this. How would this change the computation of Amy’s trust value for the path used to find out about Danny?

Matt Bishop Office: 2209 Watershed Sciences Phone: +1 (530) 752-8060 Email: mabishop@ucdavis.edu

ECS 153, Computer Security Version of April 12, 2018 at 9:33AM

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