dart_tinydtls 0.4.0
dart_tinydtls: ^0.4.0 copied to clipboard
Dart ffi bindings to the tinydtls library. Provides wrappers for both a DTLS client and server.
// Copyright 2022 The NAMIB Project Developers. All rights reserved.
// See the README as well as the LICENSE file for more information.
//
// SPDX-License-Identifier: EPL-1.0 OR BSD-3-CLAUSE
import 'dart:convert';
import 'dart:io';
import 'dart:typed_data';
import 'package:dart_tinydtls/dart_tinydtls.dart';
EcdsaKeys _getKeys() {
final privateKey = Uint8List.fromList(privateKeyList);
final publicKeyX = Uint8List.fromList(publicKeyXList);
final publicKeyY = Uint8List.fromList(publicKeyYList);
return EcdsaKeys(
EcdsaCurve.dtlsEcdhCurveSecp256R1, privateKey, publicKeyX, publicKeyY);
}
// Insert your test server address and port here
const address = "::1";
const port = 5684;
Future<void> main() async {
final server = await DtlsServer.bind(InternetAddress.anyIPv6, 5684,
keyStore: {"Client_identity": "secretPSK"}, ecdsaKeys: _getKeys());
server.listen((connection) {
connection.listen(
(event) {
print(utf8.decode(event.data));
connection.send(utf8.encode("Hello from world!"));
},
onDone: () {
print("Server connection closed.");
},
);
});
final client = await DtlsClient.bind(InternetAddress.anyIPv6, 0);
int responses = 0;
final pskCredentials = PskCredentials("Client_identity", "secretPSK");
final connection = await client.connect(InternetAddress(address), port,
pskCredentials: pskCredentials,
ecdsaKeys: _getKeys(), eventListener: (event) {
print(event);
if (event == DtlsEvent.dtlsEventCloseNotify) {
print("Closing the client");
client.close();
}
});
connection
..listen((event) {
print(utf8.decode(event.data));
if (++responses >= 2) {
server.close();
}
})
..send(utf8.encode('Hello World!'))
..send(utf8.encode('Goodbye World!'));
}
const privateKeyList = [
0x41,
0xC1,
0xCB,
0x6B,
0x51,
0x24,
0x7A,
0x14,
0x43,
0x21,
0x43,
0x5B,
0x7A,
0x80,
0xE7,
0x14,
0x89,
0x6A,
0x33,
0xBB,
0xAD,
0x72,
0x94,
0xCA,
0x40,
0x14,
0x55,
0xA1,
0x94,
0xA9,
0x49,
0xFA
];
const publicKeyXList = [
0x36,
0xDF,
0xE2,
0xC6,
0xF9,
0xF2,
0xED,
0x29,
0xDA,
0x0A,
0x9A,
0x8F,
0x62,
0x68,
0x4E,
0x91,
0x63,
0x75,
0xBA,
0x10,
0x30,
0x0C,
0x28,
0xC5,
0xE4,
0x7C,
0xFB,
0xF2,
0x5F,
0xA5,
0x8F,
0x52
];
const publicKeyYList = [
0x71,
0xA0,
0xD4,
0xFC,
0xDE,
0x1A,
0xB8,
0x78,
0x5A,
0x3C,
0x78,
0x69,
0x35,
0xA7,
0xCF,
0xAB,
0xE9,
0x3F,
0x98,
0x72,
0x09,
0xDA,
0xED,
0x0B,
0x4F,
0xAB,
0xC3,
0x6F,
0xC7,
0x72,
0xF8,
0x29
];