secp256k1: Missing publicKeyJwkFromPublicKeyBase58 method

[alexkravets]

publicKeyJwkFromPublicKeyBase58 method is present for Ed25519 suite but is missing for secp256k1 .

Suggested method:

const publicKeyJwkFromPublicKeyBase58 = value => {
  const publicKeyHex = publicKeyUInt8ArrayFromPublicKeyBase58(value).toString('hex')
  const publicKeyJwk = publicKeyJwkFromPublicKeyHex(publicKeyHex)

  return publicKeyJwk
}

[OR13]

thanks! PRs welcome, I know these helper methods are useful, you can convert base58 to hex and then use:

https://github.com/transmute-industries/did-key.js/blob/master/packages/secp256k1/src/keyUtils.ts#L93

const publicKeyJwkFromPublicKeyBase58 = (base58Encoded: string) => {
  const publicKeyHex = Buffer.from(bs58.decode(base58Encoded)).toString('hex')
  const publicKeyJwk = publicKeyJwkFromPublicKeyHex(publicKeyHex)

  return publicKeyJwk
}