[Pcsclite-muscle] Web smartcard access (?)

[Sebastien Lorquet]

Hello Ludovic,

Thank you for this information I had forgotten.

We do not have pending and urgent developments in this domain, but I 
will now remember this when we have to.

Thank you again,

Sebastien

Le 16/06/2023 à 17:27, Ludovic Rousseau a écrit :
> Le ven. 16 juin 2023 à 15:34, Sebastien Lorquet <sebastien at lorquet.fr> a écrit :
>> Hi all,
> Hello Sebastien,
>
>> For a time in the Past, it was possible to enumerate smart card readers
>> and to exchange APDUs with smart card from various web extensions, both
>> in internet explorer (via ActiveX crimes) or in firefox (via XPCOM crimes).
>>
>> Browsers got updated, Chrome won it all, and now it's all gone.
>>
>> So is it still possible to access smart card in a browser context in
>> 2023 and how?
>>
>>
>> Now, we have webassembly and webusb in chrome, maybe chromium. Firefox
>> still does not have it.
>>
>> And I wonder if pcsclite, in a form executable from browser context,
>> could be compiled to webassembly with a webusb backend so we can do
>> smartcards in the browser again?
>>
>> Clearly the full pcscd daemon + libpcsc library is not workable... but
>> something could be, with shortcuts?
>>
>> I am clearly incompetent to design all of this but if someone else was
>> curious enough to try... some others people would use this, including me.
> Instead of porting pcsc-lite to webassembly I suggest to port libccid instead.
> If you need to access only 1 card from 1 application you do not need a
> middleware like pcsc-lite.
>
> What you need is an equivalent of CCID for UEFI but for webassembly + webusb
> See "Updated CCID driver for UEFI"
> https://blog.apdu.fr/posts/2022/11/updated-ccid-driver-for-uefi/
>
> You may have access issues because:
> - if pcsc-lite already uses the USB device then you can't open it
> (again) from webusb
> - by default CCID USB readers are accessible only by root. You will
> have to configure a udev rule to give access to the user running the
> browser (maybe not a good idea)
>
>
> With Chrome you can use "Smart Card Connector"
> https://chrome.google.com/webstore/detail/smart-card-connector/khpfeaanjngmcnplbdlpegiifgpfgdco
>
> It was working in 2017 when I wrote "PC/SC sample in Smart Card
> Connector on Chromebook"
> https://blog.apdu.fr/posts/2017/03/pcsc-sample-in-smart-card-connector-on/
> And the latest version is from Oct 2022 so it seams to be maintained.
>
> I also found other smart card extensions in Chrome Web Store
> https://chrome.google.com/webstore/search/smart%20card%20extension?_category=extensions
>
> I think you already know "Web Smart Card"
> https://github.com/WICG/web-smart-card
>
> Bye
>
>
> --
>   Dr. Ludovic Rousseau
>
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