Ed25519 Private Key length

[TJKoury]

Constructing a new Ed25519 key by passing a 32 byte Uint8Array should be allowed. I assume this check is due to the convention of passing in private & public concatenated, would be nice to detect a 32 byte key per the spec.

I could work on a pull if this is of interest to anyone else.

js-libp2p-crypto/src/keys/ed25519-class.js

Line 44 in a99f419

// key - 64 byte Uint8Array containing private key

[mpetrunic]

@TJKoury You are right, this makes no sense. We would love if you could open PR!