borgbackup/borg

unusual blake2b usage, adopt blake3?

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#8,867 opened on 2025年5月21日

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説明

This is from master branch (same in 1.4-maint):

def blake2b_256(key, data):
    return hashlib.blake2b(key+data, digest_size=32).digest()

It is one of the chunkid hashes borg uses.

The usage there is unusual, the python docs rather suggest:

def blake2b_256(key, data):
    return hashlib.blake2b(data, key=key, digest_size=32).digest()

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