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29-11-2002, 22:45 door Virtal Technologies

The lowdown on PKI What is PKI? A public-key infrastructure is a system in which digital certificates and keys are created, managed, stored and distributed in order to verify users of secure systems, e-mail, documents and other online transactions. How does it work? PKI is based on the use of key pairs—a private key controlled by the user and a public key shared with anyone who wants to use secure services from the person or organization holding the private key. A user receiving a message with only the public key can use a private key to validate the message; conversely, a person who gets a message from an organization or individual holding the private key can use the public key to unlock the message and verify the sender. The keys can be used to authenticate electronic messages, documents and digital signatures. They also can be incorporated into smart cards, as the Defense Department is doing with its Common Access Card program. What are the advantages of PKI? Users no longer need to remember ...

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