[bitcoin-dev] An alternative: OP_CAT & OP_CHECKSIGFROMSTACK

Russell O'Connor roconnor at blockstream.io
Fri May 24 15:10:21 UTC 2019


On Wed, May 22, 2019 at 5:01 PM Russell O'Connor <roconnor at blockstream.io>
wrote:

> In concert, these two operations enable:
>
> * Oracle signature verification, including discrete log contracts.
>

Jonas informs me that I've misunderstood how discreet log contracts work.
The DLC signatures are not directly checked by Script and do not rely on
CHECKSIGFROMSTACK.  I apologize for my hasty literature review.
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