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Re: [cf-dev] Does scandium use certificates as key exchange mechanism ?
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Thanks Kai and info on optional authentication in DTLS was bonus :).
Regards,
Kiran.
On 2/8/16, Hudalla Kai (INST/ESY1) <Kai.Hudalla@xxxxxxxxxxxx> wrote:
> Hi Kiran,
>
> yes, a (D)TLS handshake uses certificates only for (optional) authentication
> and for negotiating key material for symmetric encryption (usually AES).
> Asymmetric encryption would be way too resource intensive and slow ...
>
> Regards,
> Kai
>
>
> -----Original Message-----
> From: cf-dev-bounces@xxxxxxxxxxx [mailto:cf-dev-bounces@xxxxxxxxxxx] On
> Behalf Of Kiran Pradeep
> Sent: Monday, February 08, 2016 3:23 PM
> To: cf-dev@xxxxxxxxxxx
> Subject: [cf-dev] Does scandium use certificates as key exchange mechanism
> ?
>
> Hi,
>
> As per DTLS paper[1] PKI certificates are used only for exchanging a
> symmetric key. Is it the same in Scandium implementation ? Or is the entire
> DTLS traffic encrypted using pure asymmetric encryption ?
>
> [1]: https://crypto.stanford.edu/~nagendra/papers/dtls.pdf
>
> Thanks,
> Kiran.
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