Re: [W3C Web Crypto WG] Deciding if we need a discovery mechanism

On Fri, Jun 8, 2012 at 5:48 PM, Wan-Teh Chang <wtc@google.com> wrote:
> On Thu, Jun 7, 2012 at 8:26 PM, David Dahl <ddahl@mozilla.com> wrote:
>>
>> I think so. We do need to figure out just how flexible this mechanism should be. Perhaps the key handle object you get back has properties like:
>>
>> kh.mode
>> kh.padding
>> kh.algorithm
>
> An AES key can be used in different modes of operation and with
> different padding schemes, so 'mode' and 'padding' aren't properties
> of a key unless we artificially constrain the key.

It seems like they might be if the key was embedded in a piece of
hardware which had a limited mode set, e.g, one which supported
only CBC and not GCM.

-Ekr

Received on Saturday, 9 June 2012 04:16:37 UTC