Re: [OpenCoin-devel] Fwd: [GSoC-2015] OpenCoin Digital Cash App

[Nils T. <ni...@op...>]

On 01.04.2015 14:28, Nils Toedtmann wrote:
> Hi Tom!
> 
> I vaguely remember - but i might be wrong - that there is an important
> crypto primitive missing, and that is blinding/unblinding. And
> unfortunatly the API is only exposing crypto primitives, but not the
> underlying BigInt library, so you have to do it outside JS - which is
                                                 ^^^^^^^^^^^^^
Typo. I meant outside ASM

> pretty slow.
> 
> I think i even had conversations with the webcrypto gang about this.
> Will try to find it when i have more time.
> 
> /n
> 
> 
> On 01.04.2015 13:15, Tom Salfield wrote:
>> Hi Stefan,
>>
>> On 15/03/15 21:41, Stefan Xenon wrote:
>>> A while ago we did some tests and found that native JS may be
>>> problematic because it is very slow for some of our crypto operations.
>>> We concluded that a native "module" would be a good choice when using
>>> Phonegap. This module would be native platform code (e.g. Java for
>>> Android) and perform the crypto calculation. Do you have experience in
>>> using such?
>> Out of interest what were the performance problems in doing this using
>> browser crypto? I'd have thought that with faster browsers, and built in
>> random number generation this should perform quite well by now. In
>> firefox and chrome and probably IE12 there is asm.js support - making
>> implementations potentially significantly faster:
>>
>> https://github.com/vibornoff/asmcrypto.js/tree/master/src
>>
>> Anyway, just interested to know where the bottleneck would be?
>>
>> Thanks,
>>
>> Tom
>>
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>