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5.2.2 Secure Recovery
Integrity is required to have a security
guarantee. Typically, this is not found as part of the design of a computer
systems architecture. The University of Pennsylvania has developed
a system they call AEGIS or Automated Recovery in a Secure Bootstrap
Process.424 In brief, AEGIS assumes:
- The system board has not been compromised.
- A certificate authority is being used.
- A trusted host exists for recovery purposes.
With these assumptions, there are
six goals for AEGIS. They are:
- Allow the AEGIS client and the trusted repository
to mutually authenticate their identities with limited or no prior contact.
- Prevent man in the middle attacks.
- Prevent replay attacks.
- Mitigate certain classes of denial of service
- Allow the participating parties to agree upon
a shared secret and secure manner in order to optimize future message
- Be as simple as possible: Complexity breeds design
in an application.
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CertiGuide for Security+ (http://www.CertiGuide.com/secplus/) on CertiGuide.com
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