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| Subject: | Re: [CISSP-D] Symmetric Key and authentication. |
|---|---|
| Date: | Mon, 9 May 2005 12:45:21 -0400 |
You can achieve non-repudiation only thru Asymmetric encryption. It is
so because only PKI provides you with a private key that only you are
supposed to have. It is not shared with any other entity and nobody
can claim to have send a message on your behalf... which is the crux
of non repudiation.
If authenticaton is the only issue, then you have can work with either.
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