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This is an old revision of this page, as edited by Jkmstevens (talk | contribs) at 14:05, 22 January 2010. The present address (URL) is a permanent link to this revision, which may differ significantly from the current revision.

This article does not address the security risks of 13.56MHz and NFC - NFC has a serious eavesdropping risks, and is not permitted in any secure area in US. Several cell phone manufactures have not been too enthused to adopt this as a standard because of this risk. IEEE 1902.1 is the only wireless technology that has approval for use in secure areas within the US and is in widespread use. It is true that a large percentage of the NFC signal is magnetic (about 40-50%) but what this article does not say is that at 13.56Mhz about 60-50% of the energy is an electric filed that has the ability to travel long distances. If you measure voltage on a loop antenna the E portion of the field drops off at 1/r, while the H (magnetic) drops of 1/r3. If you measure power the E field drops off 1/r2 and H drops off 1/r6. Bottom line is the E emissions provide a NFC security risk. The only way to eliminate eavesdropping risk is to eliminate E. NFC was concerned about bandwidth so decided to compromise security to get higher bandwidth. Have examples of conventional 13.56 Mhz RFID being detected 20 (twenty) miles from its source, even though the RFID tags only have a range of about 3 feet. Glad to discuss physics of this with any of the NFC group. Can assure you possible to monitor NFC signals at a distance.

I will add a section to this that I think will be balanced and objective - many articles and concerns on this topic on web - great white paper on NFC from Phillips discusses above as well.

Just because you operate in near field (usually means much below 1/10 wavelength) does not mean you don't emit far field detectable signals.


(Jkmstevens (talk) 14:05, 22 January 2010 (UTC))[reply]



Does anybody know how this is related to RFID? --144.82.240.6 15:09, 12 July 2006 (UTC)[reply]

I don't like the style of this article - it reads like advocacy. Wikipedia is not a soapbox

Reverted to older version. Article was a copy of http://www.nfc-forum.org/aboutnfc/ 129.27.203.169 09:07, 4 May 2005 (UTC)[reply]

NFC is RFID, or better LF and HF RFID is always NFC. UHF RFID can operate as near field communications (at short distances i.e. in a printer) but is normally used as far field communications. --Rfidguy 01:49, 5 September 2006 (UTC)[reply]

I find some important information missing in the comparison with bluetooth: is NFC capable of talking to other NFC capable phones directly? Bluetooth is. For RFID the reader is a special device. If yes, if only one of the phones is powered, is it also capable of powering the other one (just like RFID)? —Preceding unsigned comment added by 194.171.252.100 (talk) 13:10, 20 January 2009 (UTC)[reply]

I nuked the list of external links in the article because it's gone far, far beyond the point of being useful and into the deep end of spamcruft. Following the advice of WP:SPAMHOLE, let's start the section over. Here are the links I removed:

Let's pick a few very good and solid links that pass Wikipedia:External links out of this list to put back in the article. The company links can be left out, since Wikipedia is not a links directory or vehicle for promotion. — Saxifrage ✎ 22:23, 14 October 2006 (UTC)[reply]

Request photograph

Edward 14:49, 15 January 2007 (UTC)[reply]

Added an image, we have more explanatory images if required. --Timoarnall 13:46, 5 July 2007 (UTC)[reply]

List of trials

I've updated the list of NFC trials. The list is not complete as new trials are announced every week however I've tried to put a list as much accurate as possible. Curiouscitizen 10:37, 14 August 2007 (UTC)[reply]

List of trials

New update of the list. I have removed the projects of SEP (Bulgaria) and m-pay (Poland) because they are Mobile payment project based on SMS, not NFC. Curiouscitizen (talk) 16:23, 7 December 2007 (UTC)[reply]

I would remove all the trials which does not have a reference. What do you think? Some of them are just a list of companies. --Ivanmilara (talk) 15:31, 16 January 2009 (UTC)[reply]

Notes and references

I have renamed the References section to be (foot)Notes and introduced a "proper" References section to hold the list of reference works (books, articles, etc.) to be used to support citations. I have also included a reference to an article to support the claim of distance "up to 10cms".--Михал Орела (talk) 09:22, 24 October 2008 (UTC)[reply]

It would now be a good idea to move relevant stuff out of the (foot)notes and into the references section proper. This will take a lot of work.--Михал Орела (talk) 09:28, 24 October 2008 (UTC)[reply]

The moving of Timo Kasper et al. 2007 from footnotes to references took about 30min. :-) But, it was a complicated reference and difficult to get right.--Михал Орела (talk) 10:04, 24 October 2008 (UTC)[reply]

Any volunteers who wish to continue the good work might like to look at Citation_templates

--Михал Орела (talk) 10:12, 24 October 2008 (UTC)[reply]

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