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Can ST Unseat NXP in iPhone NFC?

8/17/2017 03:01 PM EDT
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litewate
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IPhone Coprocessor
litewate   8/21/2017 4:36:11 PM
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Losing the NFC sockets in Iphone and AirPods would hurt NXP, but potentially more devestating would be the loss of the Iphone coprocessor widely reported to be manufactured by NXP.   Has there been any discussion of that possibility?

sranje
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Re: A question on secure provisioning via NFC
sranje   8/21/2017 1:16:35 PM
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Dear Junko -- thank you and Mr. Sealy very much

I love the use of SP as a temporary screen idea also -- impressive

Many thanks once again

sranje
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Re: A question on secure provisioning via NFC
sranje   8/21/2017 1:08:27 PM
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Hi Nick - thank you very much for explaining -- much appreciated !!

Just in case - you mean protecting information stored on the IoT device... -- quite clever

    ... If the phone is not present after set-up, a user will not be allowed to read/change the settings, thus protecting information stored on the device....

Many thanks, once again

junko.yoshida
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Re: A question on secure provisioning via NFC
junko.yoshida   8/21/2017 1:08:04 PM
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Hi, sranje. I think Nick_rb already answered your question on this.

So, here's Mr. Sealy's original quote: "NFC can help securely pair these devices to the access point, router, hub, or gateway device."

Here's the ease of use part Mr. Sealy explained:

"A ZigBee smart bulb with an embedded NFC tag could connect securely to the home network just by tapping it against the NFC-enabled gateway device or via an NFC-enabled smartphone, simplifying and speeding up the commissioning process."

He added, "For other devices, smartphones can be leveraged as a temporary touchscreen for products without displays, easing configuration and maintenance, lowering costs and shrinking the size of these IoT-connected devices."

As a result, as Nick_rb noted, once the set-up is done, if the phone isn't there, a user will not be allowed to read/change the settings.

nick_rb
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Re: A question on secure provisioning via NFC
nick_rb   8/21/2017 11:26:19 AM
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NFC can be used as short-range authentication, with the NFC function of the phone used as second-step identification. If the phone is not present after set-up, a user will not be allowed to read/change the settings, thus protecting information stored on the device.

sranje
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A Q on STM's SiP NFC
sranje   8/20/2017 5:26:49 PM
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Dear Junko, 

In your excelent article you write:   

        It's worth noting that ST also offers system-in-package (SIP) NFC chips — ST54F and ST54H — that integrate NFC controller, eSIM with eFlash.   

A SiP is usually defined as also having passive components -- do these STM's NFCs also have any passives?  Many thanks in advance and, once again, thank you for great articles and updates

 

sranje
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A question on secure provisioning via NFC
sranje   8/18/2017 5:17:50 PM
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Thank you Junko - another interesting and useful article

Can you please explain / clarify the thought of Mr. Sealy below for uninitiated? Step-by-step -- how/why will that be secure. I am not contesting the obviously true statement -- just trying to fully understand it      ;-))

NFC also has a role to play in the IoT world. Examples include "the secure provisioning of many headless IoT devices such as smart bulbs, motion sensors, and door locks that come without displays or buttons," according to Sealy. NFC can help securely pair these devices to the access point, router, hub, or gateway device, he said.

Many thanks in advance

realjjj
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Re: ...
realjjj   8/17/2017 4:22:37 PM
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It would be possible to shift away from NXP this fasr but a bit extreme and could hint at a definitive rupture with Qualcomm. Hmm wondering, Apple still can't make AirPods, shipping times are 4 weeks now after launching them last year and their revenue doesn't suggest huge volumes. That's very odd, would be interesting to understand what's going on.


As for Spreadtrum, not sure about the value of a custom core in mobile today. Would be better to focus on other areas but maybe it's about pride and China.

junko.yoshida
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Re: ...
junko.yoshida   8/17/2017 4:04:33 PM
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@realjjj, thank you for chiming in. It would not surprise me if Apple is distancing itself from Qualcomm.

As for Spreadtrum, no, i haven't heard that, but it sounds like worth checking out.

realjjj
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...
realjjj   8/17/2017 3:39:52 PM
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A couple of months ago there were press reports from China that Apple is distancing itself from NXP. Ofc rumors from China are highly unreliable.

Off topic question- Any clue if Spreadtrum is developing a custom ARM core with simultaneous multithreading?

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