encodeKey method

@override String encodeKey(List<int> pubKey, [ Map<String, dynamic> kwargs = const {} ])

Overrides the base class method to encode a public key as a Neo (NEO) address using Base58 encoding.

This method encodes a public key as a Neo address using Base58 encoding. It expects a version byte as a keyword argument. The method validates the version argument, constructs the Neo address payload, and encodes it as a Base58 address. The result is returned as a String representing the Neo address.

Parameters:

• pubKey: The public key to be encoded as a Neo address in the form of a List
• kwargs: Optional keyword arguments with 'ver' for the version bytes.

Returns: A String representing the Base58-encoded Neo address derived from the provided public key.

Implementation

@override
String encodeKey(List<int> pubKey, [Map<String, dynamic> kwargs = const {}]) {
  /// Validate the version argument.
  AddrKeyValidator.validateAddressArgs<List<int>>(kwargs, "ver");
  List<int> verBytes = kwargs["ver"];

  /// Validate and get the Nist256p1 public key.
  final pubKeyObj = AddrKeyValidator.validateAndGetNist256p1Key(pubKey);

  /// Construct the Neo address payload.
  List<int> payloadBytes = List<int>.from([
    ...NeoAddrConst.prefixByte,
    ...pubKeyObj.compressed,
    ...NeoAddrConst.suffixByte,
  ]);

  /// Encode the payload as a Base58 address.
  return Base58Encoder.checkEncode(
      List<int>.from([...verBytes, ...QuickCrypto.hash160(payloadBytes)]));
}