1 /* Copyright 2016-present Samsung Electronics Co., Ltd. and other contributors
3 * Licensed under the Apache License, Version 2.0 (the "License");
4 * you may not use this file except in compliance with the License.
5 * You may obtain a copy of the License at
7 * http://www.apache.org/licenses/LICENSE-2.0
9 * Unless required by applicable law or agreed to in writing, software
10 * distributed under the License is distributed on an "AS IS" BASIS
11 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12 * See the License for the specific language governing permissions and
13 * limitations under the License.
16 /* Copyright (C) 2015 Sandeep Mistry sandeep.mistry@gmail.com
18 * Permission is hereby granted, free of charge, to any person obtaining a copy
19 * of this software and associated documentation files (the "Software"), to deal
20 * in the Software without restriction, including without limitation the rights
21 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
22 * copies of the Software, and to permit persons to whom the Software is
23 * furnished to do so, subject to the following conditions:
25 * The above copyright notice and this permission notice shall be included in
26 * all copies or substantial portions of the Software.
28 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
29 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
30 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
31 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
32 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
33 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
37 var crypto = require('ble_hci_socket_crypto');
40 return crypto.randomBytes(16);
43 function c1(k, r, pres, preq, iat, ia, rat, ra) {
44 var p1 = Buffer.concat([
51 var p2 = Buffer.concat([
54 new Buffer('00000000', 'hex')
65 function s1(k, r1, r2) {
66 return e(k, Buffer.concat([
72 function e(key, data) {
76 var cipher = crypto.createCipheriv('aes-128-ecb', key, '');
77 cipher.setAutoPadding(false);
79 return swap(Buffer.concat([
85 function xor(b1, b2) {
86 var result = new Buffer(b1.length);
88 for (var i = 0; i < b1.length; i++) {
89 //result[i] = b1[i] ^ b2[i];
90 result.writeUInt8(b1.readUInt8(i) ^ b2.readUInt8(i), i);
96 function swap(input) {
97 var output = new Buffer(input.length);
99 for (var i = 0; i < output.length; i++) {
100 //output[i] = input[input.length - i - 1];
101 output.writeUInt8(input.readUInt8(input.length - i - 1), i);