I agree with Jens, that's why we opted for creating public-private key
pair on device itself.


On Wed, May 14, 2014 at 8:02 PM, Jens Alfke <j...@mooseyard.com> wrote:
>
> On May 14, 2014, at 7:15 AM, Roland King <r...@rols.org> wrote:
>
>> If you ask a similar question to the original poster on any of the Apple 
>> Developer Forums you'll be advised not to generate key pairs on a device but 
>> to do it on a server (the advice will probably come from Quinn)
>
> That’s a weird idea. If the server creates the key-pair, then the server 
> knows your private key, which I would consider a major security breach. If 
> you’re going to trust the server with your credentials, you might as well 
> skip the fiddly encryption stuff altogether and save yourself a lot of work. 
> Otherwise the public keys and certs are just mumbo-jumbo to give the 
> appearance of security.
>
> Put another way: one of the major purposes of public-key crypto is to put you 
> in charge of your own encryption. You generate a key-pair locally on your 
> device/computer, and the private key is known only to you and never leaves 
> that device (except maybe inside a passcode-protected PKCS12 file.) I think 
> of private keys as being like nuclear fuel rods — you keep them in a heavily 
> shielded container (the Keychain) and never let them be exposed to daylight. 
> If you do that, you have a very secure system.
>
> —Jens
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-- 
Thanks,

Devarshi

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