Talk:Symmetric-key algorithm: Difference between revisions

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Fender123 (talk | contribs)
Question on authentication
 
symetric key algorithm not for authentication???
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Re: Statement "The symmetric-key algorithms can't be used for authentication or non-repudiation purposes."
Isn't authentication possible, using a KDC?
 
Re: authentication is possible, but you need a trusted channel first.. which involves asymmetric cryto...
Sounds weird anyway.