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Re: [Int-dir] 118

Alexandre Petrescu <alexandre.petrescu@gmail.com> Wed, 17 April 2019 14:37 UTC

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To: Stephen Farrell <stephen.farrell@cs.tcd.ie>, Eric Gray <eric.gray@ericsson.com>, "Joel M. Halpern" <jmh@joelhalpern.com>
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From: Alexandre Petrescu <alexandre.petrescu@gmail.com>
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Date: Wed, 17 Apr 2019 16:37:06 +0200
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Subject: Re: [Int-dir] 118
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Le 17/04/2019 à 16:33, Stephen Farrell a écrit :
> 
> 
> On 17/04/2019 15:29, Alexandre Petrescu wrote:
>> The longer IID the better privacy, intuitively speaking.
> 
> I don't understand that tbh. The longer the string or
> bigger the range or numbers, the more precisely one
> can identify someone would be my intuition.

True enough.

But also the longer the string the harder is to revert back to the 
secret key.  The longer the prime the harder to tell it is prime or not.

The shorter the IID, the easier it is to brute force it into the secret key.

Variable is probably best.

Alex

> 
> S.
>

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