main function
void
main()
Implementation
void main() {
var ec = getP256();
var priv = ec.generatePrivateKey();
var pub = priv.publicKey;
print(priv);
print(pub);
var hashHex =
'b94d27b9934d3e08a52e52d7da7dabfac484efe37a5380ee9088f7ace2efcde9';
var hash = HEX.decode(hashHex);
// print("hash: $hash");
var sig = signature(priv, hash);
var result = verify(pub, hash, sig);
print("Is verified: $result");
}