calculateFingerprint function
given a asset policyId and an assetName in hex, generate a bech32 asset fingerprint
Implementation
String calculateFingerprint(
{required String policyId,
required String assetNameHex,
String hrp = 'asset'}) {
//final assetNameHex = str2hex.encode(assetName);
final assetId = '$policyId$assetNameHex';
//logger.i("assetId: $assetId");
final assetIdBytes = HEX.decode(assetId);
//logger.i(b2s(assetIdBytes, prefix: 'assetIdBytes'));
final List<int> hashBytes = blake2bHash160(assetIdBytes);
//logger.i(b2s(hashBytes, prefix: 'hashBytes'));
final List<int> fiveBitArray = convertBits(hashBytes, 8, 5, false);
//logger.i(b2s(fiveBitArray, prefix: 'fiveBitArray'));
return bech32.encode(Bech32(hrp, fiveBitArray));
}