NFC support for legacy PSBT formats

BlockchainCommons / GordianSeedTool-iOS

Cryptographic Seed Manager for iOS

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NFC support for legacy PSBT formats #170

Open ChristopherA opened 2 years ago

ChristopherA commented 2 years ago

From NFC cards with sufficient capacity, be able to import the following legacy PSBT formats. Importing from any of these formats will provide a warning to use the standard format:

UR crypto-psbt
UR crypto-bytes
Raw binary PSBT

To NFC cards with sufficient capacity, be ample to export signed PSBTs to the following legacy formats, with a warning that they are deprecated:

UR crypto-psbt
UR crypto-bytes
Raw binary PSBT

wolfmcnally commented 2 years ago

Please clarify: You want to be able to read all of these as if they were properly enclosed in a crypto-request for signing a PSBT, and you want the option to write any of these formats to NFCs?

ChristopherA commented 2 years ago

Medium term yes. Priority is our own best practices, but until more wallets support crypto-request we likely need to do more. Longer term (2.0?) once a standard (hopefully ours) then we can consider deprecating non-standard output, and eventually all non-standard input.