ECPair.fromPublicKey constructor
Creates a keypair from [publicKey. The returned keypair will contain null
private key
Implementation
factory ECPair.fromPublicKey(Uint8List publicKey, {Network network, bool compressed}) {
if (!ecc.isPoint(publicKey)) {
throw ArgumentError("Point is not on the curve");
}
return ECPair(null, publicKey,
network: network, compressed: compressed);
}