Hi Andrew,
Ok, I will go ahead and write the amendment and make a PR.
Thanks!
Jon
2019年7月10日(水) 5:26 Andrew Chow :
> This was the original intent of the sighash field. Either the sighash is
> acceptable to the signer and the signer signs with it, or they do not sign
> at all.
>
> On 7/9/19
This was the original intent of the sighash field. Either the sighash is
acceptable to the signer and the signer signs with it, or they do not sign at
all.
On 7/9/19 11:58 AM, Jonathan Underwood via bitcoin-dev wrote:
> Hi all,
>
> Just to be brief, I'll kick off with an attack scenario.
>
>
Hi all,
Just to be brief, I'll kick off with an attack scenario.
1. I am a signer, I get a PSBT that is ready to sign. I parse. I sign
according to the PSBT as-is.
2. I notice my UTXO was stolen by a hacker because they changed my PSBT
input's sighashtype to SIGHASH_ANYONECANPAY | SIGHASH_NONE
