On Tue, 27 Jul 2010, Danny Mayer wrote:
The subject of encrypting PTP (or NTP for that matter) packets came up during the Working Group Meeting. However, noone has said why you would bother to do so. The data is not private in any sense of confidentiality; it's not useful if it's not consumed immediately on arrival and there's lots of overhead in encrypting and decrypting packets so why is even being considered. Is there a good use case for this or are we just wasting cycles?
Cryptographically signing something is often very similar to both signing and encrypting, so if the mechanism employed already supports both, why not support it so someone who want's to do encryption can do so?
I don't think we right now can foresee all use cases for the future so I see little harm in supporting both authentication and encryption.
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