Inside Windows Server 1002003 [Electronic resources] نسخه متنی

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Inside Windows Server 1002003 [Electronic resources] - نسخه متنی

Addison Wesley

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PKI Goals


The PKI services in Windows Server 2003 provide the underpinnings for applications that use cryptographic services. A properly designed PKI achieves the following goals:


  • Confidentiality.
    The privacy of user transactions is protected by encrypting data streams and messages.


  • Authentication.
    No transaction can be truly secure if the parties are completely unknown to each other. PKI provides a means for senders and recipients to validate each other's identities.


  • Integrity.
    Transactions can be marked in such a way that any tampering is immediately apparent. This protection extends to preventing replays and detecting de-sequenced messages or datagrams.


  • Non-Repudiation.
    It's one thing to authenticate the source of a message; it's quite another to keep the source from denying having sent the message. Digital signatures inextricably link senders to their messages.



A PKI uses standard elements to achieve these goals. Highly impenetrable encryption algorithms have been developed to achieve confidentiality.

Certificates provide a secure transport to exchange the cipher keys used by these encryption algorithms. Authentication and integrity are assured by using

digital signatures consisting of encrypted

hashes . Non-repudiation is assured by applying digital signatures in such a way that senders always leave a mark on their communications.

Here are places to get additional information about the PKI components used in Windows Server 2003:


There are quite a few vendors who sell PKI products that you can use in place of, or in conjunction with, a Windows Server 2003 PKI. Here are the major vendors:



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