[bitcoindev] [BIP Proposal] OP_TWEAKADD

[jeremy <jeremy.l.rubin@gmail.com>]

[-- Attachment #1.1: Type: text/plain, Size: 1052 bytes --]

Hi all,

I've made a draft BIP writeup of an (often discussed) simple opcode, 
OP_TWEAKADD, deployable as an OP_SUCCESSx upgrade.

https://github.com/bitcoin/bips/pull/1944

This opcode is relatively simple. The main design choices are:

1) Verify v.s. Push semantics -- Push, for succinctness on-chain
2) Argument order -- Key on top, for tweak in witness
3) Plain tweak or something else -- Plain tweak, if hashing is desirable 
the user can do it. The most flexible is to do a plain tweak. Future work 
could add TapTree opcodes to construct taproot tweaks.

Feedback and discussion are welcome.

Best,

Jeremy

[^1] OP_SHA256 in these example prevents key-cancellation.

-- 
You received this message because you are subscribed to the Google Groups "Bitcoin Development Mailing List" group.
To unsubscribe from this group and stop receiving emails from it, send an email to bitcoindev+unsubscribe@googlegroups.com.
To view this discussion visit https://groups.google.com/d/msgid/bitcoindev/bc9ff794-b11e-47bc-8840-55b2bae22cf0n%40googlegroups.com.

[-- Attachment #1.2: Type: text/html, Size: 1568 bytes --]