Converting ed25519 into Curve25519
It has been suggested around the world of cryptography (as well as the IETF), that public ed25519 keys can also serve as encryption keys as well (Montgomery Curves).
Here's a nodejs library for those looking to do so (novelty here) - https://www.npmjs.com/package/ed2curve
You can drop the keys right into the 'NaCL Box'
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