[Bitcoin-development] Small update to BIP 62

Wladimir laanwj at gmail.com
Fri Jul 18 20:56:32 UTC 2014


On Fri, Jul 18, 2014 at 5:39 PM, Mike Hearn <mike at plan99.net> wrote:
> The rationale doesn't seem to apply to rule #4, what's so special about that
> one?

> 4. Non-push operations in scriptSig Any non-push operation in a scriptSig invalidates it.

Having non-push operations in the scriptSig is a source of
malleability, as there can be multiple sequences of opcodes that
evaluate to the same result.

Wladimir




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