When using IPsec, how can you ensure that each computer uses its own private key pair?

By using digital certificates.

Explanation: Digital certificate are used for the following:

1) Digital certificates are used in public key cryptography functions; they are most commonly used for initializing secure SSL connections between web browsers and web servers.

2) Digital certificates can also be used for sharing keys to be used for public key encryption and authentication of digital signatures.

no. when the asker posts the question they can make a question worth what ever they think is a fair price. although it must be within the limit of the points they currently own. 5 is the minimum number of points a question can be worth. if a question is complicated or has lots of parts to it, it is better to make it worth more because more people will be more willing to answer.

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