Streaming?

[mikeal]

Heya,

The Node.js crypto libraries support chunked updates to the hash which allows you to stream to it, which I make pretty heavy use of. Can we get a similar feature here?

Also, just out of curiosity, what does ipfs use as the default hashing algorithm?

[daviddias]

Hey!

This module doesn't do the hashing itself, it just handles the prefixing + identifying the hash func. js-multihashing and js-multihashing-async are the ones we use to do the hashing.

We can have a js-multihashing-stream. However, do note that WebCrypto doesn't support streaming (same as encrypt/decrypt.. which means that the hashing would need to use the JS shim which is considerably slower than WebCrypto in the browser.

[daviddias]

IPFS uses by default for Files sha2-256, but nowadays it is easy to convert to something else with the use of CIDs :)

[daviddias]

@mikeal ping if you still need a Stream API vs the just Async