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by aleph_minus_one 386 days ago
> Unfortunately, Keccak and sponge constructions in general are inherently sequential.

Couldn't you simply using BLAKE3 instead? To my knowledge BLAKE3 exactly was designed to solve this "parallelism problem" by combining the "cryptographic ideas" of BLAKE2 with the binary tree structure of Bao (the latter was designed to make the hash construction easy to parallelize).