small updates to readme

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Pavol Rusnak 2023-03-15 23:36:23 +01:00
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# Bolt cards (NXP NTAG) Extension # Bolt Cards (NXP NTAG424) Extension
This extension allows you to link your Bolt Card (or other compatible NXP NTAG device) with a LNbits instance on an Android phone (only) and preferable through chrome - and use it in a more secure way than a static LNURLw. A technology called [Secure Unique NFC](https://mishka-scan.com/blog/secure-unique-nfc) is utilized in this workflow. This extension allows you to link your [Bolt Card](https://github.com/boltcard) (or other compatible NXP NTAG424 DNA device) with a LNbits instance and use it in a more secure way than a static LNURLw.
This is known to work only on Android and the preferred browser is Chrome.
A technology called [Secure Unique NFC](https://web.archive.org/web/20220706134959/https://mishka-scan.com/blog/secure-unique-nfc) is utilized in this workflow.
<a class="text-secondary" href="https://www.youtube.com/watch?v=wJ7QLFTRjK0">Tutorial</a> <a class="text-secondary" href="https://www.youtube.com/watch?v=wJ7QLFTRjK0">Tutorial</a>
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Follow the guide. Follow the guide.
The URI should be `lnurlw://YOUR-DOMAIN.COM/boltcards/api/v1/scan/{YOUR_card_external_id}?p=00000000000000000000000000000000&c=0000000000000000` The URI should be `lnurlw://YOUR_LNBITS_DOMAIN/boltcards/api/v1/scan/{YOUR_card_external_id}?p=00000000000000000000000000000000&c=0000000000000000`
Then fill up the card parameters in the extension. Card Auth key (K0) can be filled in the extension just for the record. Initical counter can be 0. Then fill up the card parameters in the extension. Card Auth key (K0) can be filled in the extension just for the record. Initical counter can be 0.
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- In the TagWriter app tap Write tags - In the TagWriter app tap Write tags
- New Data Set > Link - New Data Set > Link
- Set URI type to Custom URL - Set URI type to Custom URL
- URL should look like lnurlw://YOUR_LNBITS_DOMAIN/boltcards/api/v1/scan/{YOUR_card_external_id}?p=00000000000000000000000000000000&c=0000000000000000 - URL should look like `lnurlw://YOUR_LNBITS_DOMAIN/boltcards/api/v1/scan/{YOUR_card_external_id}?p=00000000000000000000000000000000&c=0000000000000000`
- click Configure mirroring options - click Configure mirroring options
- Select Card Type NTAG 424 DNA - Select Card Type NTAG 424 DNA
- Check Enable SDM Mirroring - Check Enable SDM Mirroring