[cryptography] Homomorphic split-key encryption OR snake oil crypto

Ali, Saqib docbook.xml at gmail.com
Sun Feb 19 13:35:47 EST 2012


Florian,

That's what I suspected as well. Unfortunately, it appears that
Porticor's "homomorphic split-key" system is a closed one, so we may
never see the details. But I think they are using the word
"Homomorphic" to mislead people.

Saqib

On Sun, Feb 19, 2012 at 9:58 AM, Florian Weimer <fw at deneb.enyo.de> wrote:
> * Saqib Ali:
>
>> If the system involves split key / shared secrets (m of n), then it
>> wouldn't be a homomorphic system. Would it?
>
> I think the "homomorphic" part alludes to the fact that full
> reconstruction of the entire key is not needed to perform the
> cryptographic operation.  In essence, I suspect it's a misnomer.
>
> We'd need a protocol description, not an interview, to be sure.



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