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[BIP322] remove empty message requirement for full (proof-of-funds) proofs #1352

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merged 11 commits into from May 1, 2024
Merged

[BIP322] remove empty message requirement for full (proof-of-funds) proofs #1352

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15224fd
add bip-notatether-signedmessage
ZenulAbidin Aug 4, 2022
5364a66
minor heading correction
ZenulAbidin Aug 4, 2022
806c71b
minor formatting correction
ZenulAbidin Aug 4, 2022
14a069c
minor formatting correction
ZenulAbidin Aug 4, 2022
621b593
minor formatting correction
ZenulAbidin Aug 4, 2022
e0032a4
minor formatting correction
ZenulAbidin Aug 4, 2022
1888b57
minor formatting correction
ZenulAbidin Aug 4, 2022
5e5e0e5
minor formatting correction
ZenulAbidin Aug 4, 2022
2d8fdf6
fix some consistency errors
ZenulAbidin Aug 8, 2022
646c5ff
Remove empty message for UTXO proofs
ZenulAbidin Aug 13, 2022
01b8722
Delete bip-notatether-signedmessage.mediawiki
ZenulAbidin Aug 13, 2022
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2 changes: 0 additions & 2 deletions bip-0322.mediawiki
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Expand Up @@ -80,8 +80,6 @@ A full signature consists of the base64-encoding of the <code>to_sign</code> tra

A signer may construct a proof of funds, demonstrating control of a set of UTXOs, by constructing a full signature as above, with the following modifications.

* <code>message_challenge</code> is unused and shall be set to <code>OP_TRUE</code>
* Similarly, <code>message_signature</code> is then empty.
* All outputs that the signer wishes to demonstrate control of are included as additional inputs of <code>to_sign</code>, and their witness and scriptSig data should be set as though these outputs were actually being spent.

Unlike an ordinary signature, validators of a proof of funds need access to the current UTXO set, to learn that the claimed inputs exist on the blockchain, and to learn their scriptPubKeys.
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