What Hash need for Signature verification?

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When miners verifies a transaction, they make some calculations to check its Signature by using some Hash.

What Hash is used for Sig verification in Bitcoin Core?

D L

Posted 2017-10-31T15:34:51.963

Reputation: 478

Question was closed 2017-11-01T22:40:40.860

@Denis, the same hash that was used by transaction creator when he signed it. – amaclin – 2017-10-31T17:35:12.553

@amaclin but block miner is not creator of transaction – D L – 2017-10-31T17:43:47.177

@Denis, yes, but the process of calculating the hash is the same – amaclin – 2017-10-31T18:43:00.493

Answers

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I think that the hash function used is sha256d, a non-standard function obtained by hashing with sha256 twice (first hash the data, obtain 256-byte digest, then re-hash the digest).

Charles Bouillaguet

Posted 2017-10-31T15:34:51.963

Reputation: 311

Asked: 2017-10-31T15:34:51.963

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Active: 2017-11-01T06:27:03.683