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Hugo Nguyen 2021-04-19 09:48:59 -07:00 committed by GitHub
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@ -158,6 +158,23 @@ Whereas:
The <tt>MAC</tt> is to be sent along with the key and descriptor record, as specified above. Because it is a <tt>MAC</tt> over the entire plaintext, this is essentially an [https://en.wikipedia.org/wiki/Authenticated_encryption#Encrypt-and-MAC_(E&M) Encrypt-and-MAC] form of authenticated encryption.
===Descriptor Template===
The output descriptor language only supports one-dimensional lists. This proposal introduces a descriptor template to represent multi-dimensional lists:
<tt>XPUB/**</tt>
Whereas <tt>**</tt> can be replaced by any number of derivation paths.
If there is a descriptor template in the descriptor record, Signers should expand the template into concrete descriptors by using the derivations paths provided in the record.
For example, the following template and derivation paths:
* <tt>wsh(sortedmulti(2,XPUB1/**,XPUB2/**))</tt>
* <tt>/0/*,/1/*</tt>
Should translate to two concrete descriptors:
* <tt>wsh(sortedmulti(2,XPUB1/0/*,XPUB2/0/*))</tt>
* <tt>wsh(sortedmulti(2,XPUB1/1/*,XPUB2/1/*))</tt>
==QR Codes==
For signers that use QR codes to transmit data, key and descriptor records can be converted to QR codes, following [https://github.com/BlockchainCommons/Research/blob/master/papers/bcr-2020-005-ur.md the BCR standard].
@ -176,23 +193,6 @@ Encryption helps improve the privacy of the wallet by avoiding sharing keys and
If the parties wish to have stronger privacy, it is recommended to use a higher number of bits for the <tt>TOKEN</tt>, and to completely erase knowledge of the <tt>TOKEN</tt> after the multisig wallet has been set up.
==Descriptor Template==
The output descriptor language only supports one-dimensional lists. This proposal introduces a descriptor template to represent multi-dimensional lists:
<tt>XPUB/**</tt>
Whereas <tt>**</tt> can be replaced by any number of derivation paths.
If there is a descriptor template in the descriptor record, Signers should expand the template into concrete descriptors by using the derivations paths provided in the record.
For example, the following template and derivation paths:
* <tt>wsh(sortedmulti(2,XPUB1/**,XPUB2/**))</tt>
* <tt>/0/*,/1/*</tt>
Should translate to two concrete descriptors:
* <tt>wsh(sortedmulti(2,XPUB1/0/*,XPUB2/0/*))</tt>
* <tt>wsh(sortedmulti(2,XPUB1/1/*,XPUB2/1/*))</tt>
==Test Vectors==
===Mode: <tt>NO_ENCRYPTION</tt>===