u coordinate expected 56 bytes, got 57 about noble-curves

[paulmillr]

ed448 and x448 keys are NOT interchangeable

const priv = x448.utils.randomPrivateKey();
const pub = x448.getPublicKey(priv);
x448.getSharedSecret(priv, pub);
x448.getPublicKey(priv);

[Icehunter]

It looks like the example was a little off, unless this is wrong but:

const priv = ed448.utils.randomPrivateKey();
const pub = x448.getPublicKey(priv);

x448.getSharedSecret(priv, pub);

That works, if using x448 to get the public and ed448 to get private.

[Icehunter]

Makes much more sense thank you!