PKI · Question 11 of 12

A web server's private key was copied during a break-in. The certificate is valid for another ten months. Which steps are necessary?

3 answers are correct. Hard

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Answer

  • A Have the certificate revoked by the CA
  • C Check whether the same key is used on other systems
  • D Generate a new key pair and request a new certificate

Explanation

With the copied key, an attacker can impersonate the server. That is why the certificate is revoked immediately, a new key pair is generated and a new certificate issued. If the key was used in several places, for example as a wildcard, all of them are affected.

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