Bitcoin Forum
October 24, 2017, 12:38:40 AM *
News: Latest stable version of Bitcoin Core: 0.15.0.1  [Torrent]. (New!)
 
   Home   Help Search Donate Login Register  
Pages: « 1 [2]  All
  Print  
Author Topic: NFC Ring  (Read 2316 times)
bbit
Legendary
*
Offline Offline

Activity: 1288

Bitcoin


View Profile
July 28, 2013, 05:39:50 PM
 #21

Woow, sounds awsome!
In the video they talk about Bitcoin, saying it can store your wallet address to receive payment. Wouldn't it be fantastic if it could store your private key too, thus being able to make payments as well?
Ya that part of was the coolest part. Yeah I agree about storing your private key.

That might be quite risky for anything but smallest amount of coins, since the private key would be readable for anyone getting close enough. Think about using this in a store: you would have to trust cashier withdrawing right sum.

And where would the change go, back to a new key generated by the cashier machine? What if NFC link is interrupted while writing the new key to the ring, would the BTC be lost?

Yes, true. I believe he mentioned another way around that even.
"In a nutshell, the network works like a distributed timestamp server, stamping the first transaction to spend a coin. It takes advantage of the nature of information being easy to spread but hard to stifle." -- Satoshi
Advertised sites are not endorsed by the Bitcoin Forum. They may be unsafe, untrustworthy, or illegal in your jurisdiction. Advertise here.
1508805520
Hero Member
*
Offline Offline

Posts: 1508805520

View Profile Personal Message (Offline)

Ignore
1508805520
Reply with quote  #2

1508805520
Report to moderator
LTClover
Newbie
*
Offline Offline

Activity: 17



View Profile
July 28, 2013, 06:27:41 PM
 #22

No not at all
CurbsideProphet
Hero Member
*****
Offline Offline

Activity: 672


View Profile
July 28, 2013, 08:11:33 PM
 #23

Do you have to use the "alpha man" size ring in order for it to work with the S4 or does the regular size work as well?  What about the S3?

Good question to ask.  You can reach out to them via email here:
John@mclear.co

Thanks, I'll shoot them an email.

1ProphetnvP8ju2SxxRvVvyzCtTXDgLPJV
bg002h
Donator
Legendary
*
Offline Offline

Activity: 1358


I outlived my lifetime membership:)


View Profile WWW
July 28, 2013, 10:02:34 PM
 #24

The key ring idea is an oldie but goodie!

http://item.mobileweb.ebay.com/viewitem?sbk=1&nav=SEARCH&itemId=300495374337

Hardfork aren't that hard.
1GCDzqmX2Cf513E8NeThNHxiYEivU1Chhe
bitcoinstarter
Hero Member
*****
Offline Offline

Activity: 485



View Profile
July 28, 2013, 10:23:03 PM
 #25

Do you have to use the "alpha man" size ring in order for it to work with the S4 or does the regular size work as well?  What about the S3?

Good question to ask.  You can reach out to them via email here:
John@mclear.co

Thanks, I'll shoot them an email.

Welcome! Hopefully, you can find what your are seeking.

🔥BitcoinStarter.com🔥- Crowdfunding with Bitcoin. Fund a project or start your own
Galahad
Full Member
***
Offline Offline

Activity: 178



View Profile
July 30, 2013, 08:44:26 AM
 #26

I don't really want to wear a ring.
kik1977
Hero Member
*****
Offline Offline

Activity: 582


Wherever I may roam


View Profile
July 30, 2013, 09:25:24 AM
 #27

Woow, sounds awsome!
In the video they talk about Bitcoin, saying it can store your wallet address to receive payment. Wouldn't it be fantastic if it could store your private key too, thus being able to make payments as well?
Ya that part of was the coolest part. Yeah I agree about storing your private key.

That might be quite risky for anything but smallest amount of coins, since the private key would be readable for anyone getting close enough.

Exactly, that's why it should be possible to shield in some way the ring whenever one doesn't want to perform a transaction.

We are like butterflies who flutter for a day and think it is forever
hayek
Sr. Member
****
Offline Offline

Activity: 373


View Profile
July 30, 2013, 02:07:47 PM
 #28

Woow, sounds awsome!
In the video they talk about Bitcoin, saying it can store your wallet address to receive payment. Wouldn't it be fantastic if it could store your private key too, thus being able to make payments as well?
Ya that part of was the coolest part. Yeah I agree about storing your private key.

That might be quite risky for anything but smallest amount of coins, since the private key would be readable for anyone getting close enough.

Exactly, that's why it should be possible to shield in some way the ring whenever one doesn't want to perform a transaction.


I bought one.

There are two sides to this ring. An inner and an outer. Each side has a separate NFC chip. The inner is designed to be private. It's shielded by your palm. The outer is designed to be public.
kik1977
Hero Member
*****
Offline Offline

Activity: 582


Wherever I may roam


View Profile
July 30, 2013, 02:37:49 PM
 #29

Wow, seriously? Could you please post some pics and, more important, your impression once you will actually use it?

We are like butterflies who flutter for a day and think it is forever
paveq
Newbie
*
Offline Offline

Activity: 4


View Profile
July 30, 2013, 03:45:03 PM
 #30

I don't really want to wear a ring.

Get a tattoo with public key QR? Or embed NFC chip inside palm?  Cool
hayek
Sr. Member
****
Offline Offline

Activity: 373


View Profile
July 30, 2013, 03:46:56 PM
 #31

Wow, seriously? Could you please post some pics and, more important, your impression once you will actually use it?

Once I receive it I sure can.

I was one of the first in the kickstarter so I will be receiving mine in September (yay Erli Bird). The inventor has a number of great video demonstrations:

http://www.kickstarter.com/projects/mclear/nfc-ring

Still 19 days left if you want to buy one


Public vs Private example:
http://www.youtube.com/watch?feature=player_embedded&v=FUZ1SbWLj6Y
kik1977
Hero Member
*****
Offline Offline

Activity: 582


Wherever I may roam


View Profile
July 30, 2013, 03:55:24 PM
 #32

Wow, seriously? Could you please post some pics and, more important, your impression once you will actually use it?

Once I receive it I sure can.

I was one of the first in the kickstarter so I will be receiving mine in September (yay Erli Bird). The inventor has a number of great video demonstrations:

http://www.kickstarter.com/projects/mclear/nfc-ring

Still 19 days left if you want to buy one

Thanks a lot Wink

We are like butterflies who flutter for a day and think it is forever
bbit
Legendary
*
Offline Offline

Activity: 1288

Bitcoin


View Profile
August 03, 2013, 03:34:04 AM
 #33

Wow, seriously? Could you please post some pics and, more important, your impression once you will actually use it?

Once I receive it I sure can.

I was one of the first in the kickstarter so I will be receiving mine in September (yay Erli Bird). The inventor has a number of great video demonstrations:

http://www.kickstarter.com/projects/mclear/nfc-ring

Still 19 days left if you want to buy one


Public vs Private example:
http://www.youtube.com/watch?feature=player_embedded&v=FUZ1SbWLj6Y

Cool video!   10 days left on BitcoinStarter! only 10 % funded.
Pages: « 1 [2]  All
  Print  
 
Jump to:  

Sponsored by , a Bitcoin-accepting VPN.
Powered by MySQL Powered by PHP Powered by SMF 1.1.19 | SMF © 2006-2009, Simple Machines Valid XHTML 1.0! Valid CSS!