encodeKey method

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

Overrides the base class method to encode a public key as a P2SH (Pay-to-Script-Hash) address.

This method encodes a public key as a P2SH address using Bech32 encoding. It expects an optional map of keyword arguments with 'hrp' specifying the Human-Readable Part (HRP) and 'net_ver' for the network version bytes of the address. It validates the arguments, processes the public key as a Secp256k1 key, generates a script signature, and encodes it as a P2SH address using Bech32.

Parameters:

  • pubKey: The public key to be encoded as a P2SH address.
  • kwargs: Optional keyword arguments with 'hrp' for HRP and 'net_ver' for network version.

Returns: A String representing the Bech32-encoded P2SH address derived from the provided public key.

Implementation

@override
String encodeKey(List<int> pubKey, [Map<String, dynamic> kwargs = const {}]) {
  /// Validate HRP and network version arguments.
  AddrKeyValidator.validateAddressArgs<String>(kwargs, "hrp");
  AddrKeyValidator.validateAddressArgs<List<int>>(kwargs, "net_ver");
  final String hrp = kwargs['hrp'];
  final List<int> netVerBytes = kwargs['net_ver'];

  /// Validate and process the public key as a Secp256k1 key.
  final IPublicKey pubKeyObj =
      AddrKeyValidator.validateAndGetSecp256k1Key(pubKey);

  /// Encode the P2SH address using Bech32 encoding.
  return BchBech32Encoder.encode(
      hrp, netVerBytes, _P2SHAddrUtils.addScriptSig(pubKeyObj));
}