ethereum / ethereum/execution-specs
chore(testing): Replace `hashllib.sha256` with faster algorithm
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Description
Maybe a small win in terms of both fixture filling and this hasher command could be to replace this hashing function with something much faster; since we don't need a cryptographically secure hashing algo, we could replace it with something like [xxHash](https://xxhash.com/).
Perhaps for a future PR.
_Originally posted by @marioevz in https://github.com/ethereum/execution-specs/pull/2080#discussion_r2733408033_
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