[jira] [Created] (JAMES-4141) Deduplication blob store: experiment Blake 3 instead of SHA

Tran Hong Quan created JAMES-4141:
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             Summary: Deduplication blob store: experiment Blake 3 instead of SHA
                 Key: JAMES-4141
                 URL: https://issues.apache.org/jira/browse/JAMES-4141
             Project: James Server
          Issue Type: Improvement
          Components: Blob
            Reporter: Tran Hong Quan


h2. Why?

-> That is what Stallwart do.

Blake 3 maintains security guaranties of SHA but can unlock an up to 10x speed improvement.

There is a window of opportunity here: James spends ~5% of it's CPU hashing stuff for dedup so reducing its footprint is always a nice bonus. It can also allow reduce the impact of handling very big blobs.
h2. What?

Have a JVM property choosing if we are using SHA (conservative defaults) or want to enable Blake 3

Implement Blake3 using [https://commons.apache.org/proper/commons-codec/apidocs/org/apache/commons/codec/digest/Blake3.html] (trivial)



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