encryptNip44 method
Implementation
@override
Future<String?> encryptNip44({
required String plaintext,
required String recipientPubKey,
}) async {
final userPubkey = publicKey.startsWith('npub')
? publicKey
: Nip19.encodePubKey(publicKey);
final amberResult = await amberFlutterDS.amber.nip44Encrypt(
plaintext: plaintext,
currentUser: userPubkey,
pubKey: recipientPubKey,
);
return amberResult['signature'];
}