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Author Topic: NFC enabled bitcoin wallets?  (Read 1860 times)
RoughLyfe (OP)
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June 26, 2015, 04:15:00 AM
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I heard about NFC enabled bitcoin wallets,where can I buy them?And how do they work?
Muhammed Zakir
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June 26, 2015, 11:58:13 AM
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Are you talking about a hardware wallet like CoolWallet[1] or software like Bitcoin Wallet[2]?

Software: I think NFC plays a role here when requesting a payment. For sending, I don't think there is no need for NFC but if you are using one device as cold storage and the another as watch-only, you can use NFC to broadcast transaction just like it works for hardware wallet. See http://youtube.com/watch?v=kmksAu_ytMg for example.

Hardware wallet: Usually, the transaction is signed inside the wallet and the signed raw transaction is send via NFC to wallet connected to internet to broadcast that transaction. This helps in securing our private key as it never leaves the device and is not exposed to internet.

[1] https://coolbitx.com/
[2] https://play.google.com/store/apps/details?id=de.schildbach.wallet&hl=en

RoughLyfe (OP)
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June 26, 2015, 12:10:17 PM
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Are you talking about a hardware wallet like CoolWallet[1] or software like Bitcoin Wallet[2]?

Software: I think NFC plays a role here when requesting a payment. For sending, I don't think there is no need for NFC but if you are using one device as cold storage and the another as watch-only, you can use NFC to broadcast transaction just like it works for hardware wallet. See http://youtube.com/watch?v=kmksAu_ytMg for example.

Hardware wallet: Usually, the transaction is signed inside the wallet and the signed raw transaction is send via NFC to wallet connected to internet to broadcast that transaction. This helps in securing our private key as it never leaves the device and is not exposed to internet.

[1] https://coolbitx.com/
[2] https://play.google.com/store/apps/details?id=de.schildbach.wallet&hl=en
I meant as in a card/coin
Muhammed Zakir
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June 26, 2015, 02:03:49 PM
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I meant as in a card/coin

I didn't understand. Can you please be more specific?

RoughLyfe (OP)
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June 26, 2015, 02:53:09 PM
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I meant as in a card/coin

I didn't understand. Can you please be more specific?
I mean as like a credit card for bitcoin that has nfc enabled or a coin that has nfc enabled and is also a bitcoin wallet
Muhammed Zakir
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June 26, 2015, 03:00:21 PM
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I meant as in a card/coin

I didn't understand. Can you please be more specific?
I mean as like a credit card for bitcoin that has nfc enabled or a coin that has nfc enabled and is also a bitcoin wallet

Have you looked https://coolbitx.com/?

RoughLyfe (OP)
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June 26, 2015, 04:23:16 PM
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I meant as in a card/coin

I didn't understand. Can you please be more specific?
I mean as like a credit card for bitcoin that has nfc enabled or a coin that has nfc enabled and is also a bitcoin wallet

Have you looked https://coolbitx.com/?
No I haven't,thanks for showing me this
RoughLyfe (OP)
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June 26, 2015, 05:41:45 PM
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I meant as in a card/coin

I didn't understand. Can you please be more specific?
I mean as like a credit card for bitcoin that has nfc enabled or a coin that has nfc enabled and is also a bitcoin wallet

Have you looked https://coolbitx.com/?
Where do i buy this?
unamis76
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June 26, 2015, 05:55:21 PM
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Easier to just use you phone + Mycelium Smiley

Also, on Cool Wallet's presentation video, keep in mind that it is not woking through NFC. Developers still have no direct access to the NFC chip in the current iOS version.
Muhammed Zakir
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June 26, 2015, 06:05:26 PM
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Where do i buy this?

You can buy it from http://shop.coolbitx.com/ but I suggest you to wait till (mid) July.

Official Bitcointalk thread: https://bitcointalk.org/index.php?topic=915649.0

RoughLyfe (OP)
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June 26, 2015, 10:01:16 PM
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Where do i buy this?

You can buy it from http://shop.coolbitx.com/ but I suggest you to wait till (mid) July.

Official Bitcointalk thread: https://bitcointalk.org/index.php?topic=915649.0
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