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I am evaluating MI5 and its NFC functionality. I am considering to compliment my Samsung Galaxy S4 GT-i9506 with MI5 because of various significant improvements in the hardware, software and sufficient expected userbase. I am trying to have two-step/three step security for the login of the phone by

  • NFC card (preferably dynamic) and Password
  • NFC card, finger print and password

There is a Security application in the new MI5 but I have not been able to profile it. I think it provides finger print and password authentication by default.

I am going to replace the MIUI 7.0 OS with CyanogenMod 13 when sufficient experience of the device has been reached.

NFC card

I would like to have a dynamic NFC card with time-dependent generation of authentications for the phone, like many bank systems work. However, I have not found such a card with battery yet. I think it should be possible with the dynamic NFC technology.

YubiKey with smartphones motivated by Aleza's answer

I found this review about the product here in Amazon.com

Love it for the desktop (I'm using it for LastPass and Gmail 2nd form authentication), but it sucks on mobile (which the a big reason I purchased it). The NFC range is terrible! I've tried everything (different positions, moving it, holding it still, restating the phone, toggling NFC on/off, restoring my phone's O/S, etc.) to get it to register but it only works 1-in-20 times. When I contacted YubiKey support then said to hold it closer... saying that because it's an unpowered device the range is very limited. But, I'm pressing and holding (20-30 seconds) it right against the back of the phone right where they said to hold it -- the only way to get closer would be to take the back of the phone off ;-(.

I'm using a Samsung Galaxy 5, which they said they've had a lot of trouble with (though apparently the S6 is worse so be ware). I get that support from one phone to another can be iffy, but when 1/16" is out of range for a wireless connection, I would suggest there's a real design flaw.

Disappointing...

I would like to get more pieces of information from the support about their sensitivity and reliability. They do not allow contacts from new customers; only from existing customers. I do not like such a philosophy; it does not confirm me.

Thoughts about the product

  • Why is YubiKey's NFC weak in some products?
  • Why you cannot get a replacement of weak YubiKeys? How are the warranty and return policies?
  • What is the company behind the product?
  • Can the company recover the NFC key of the customer?
  • Does the company maintain a database to whom they have sold those keys?

How can you use NFC card with password as login in Android >=6.0?

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+50

You can try YubiKey for an NFC card. It's not dynamic. For NFC unlock + password, you can try SmartpassLock NFC.

Another (overkill) approach would be to use a contactless JavaCard (for example this one) that needs to have an applet in it, and infrastructure to support this kind of architecture. And then also develop an app on android for this(there are some smartcards apps, but havent tried them yet), the card uses a private and public key scheme.

Most apps, identifies the UID of the card to unlock, if you want something thats not off the shelf, a bit a coding will be needed.

Hope this helps!

  • 2
    Can you tell us how you came to know about YubiKey? Furthermore, can you give a use case of the software involved? I don't think an answer for a bounty should be a one-liner. – Firelord Mar 4 '16 at 17:16
  • I extended the body for the review of YubiKey. Its reliability does not confirm me. Their support is also weak. – Léo Léopold Hertz 준영 Mar 5 '16 at 14:01
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Not supported by default in Android 6-7 without extra applications. Waiting to get the feature in Android 8 or later by default because the feature is about security.

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