beacon

Why are some Beacon Frames dropped

由 喜欢而已 提交于 2019-12-25 03:55:09
问题 Why am I not capturing all Beacon Frames? Are they being dropped by AP? I'm using libpcap in Linux for capturing Beacon Frames and parsing the timestamp. I use the timestamps to compute the interval between captured Beacon Frames. Most of the time the interval is what it should be, namely 102.4ms. However, every 5-6 packets show an interval of a multiple of 102.4ms, this can be 204, 306 and up to 800ms. I don't know if this is due to AP not sending those Beacon Frames or my pcap not capturing

Why are some Beacon Frames dropped

由 [亡魂溺海] 提交于 2019-12-25 03:55:02
问题 Why am I not capturing all Beacon Frames? Are they being dropped by AP? I'm using libpcap in Linux for capturing Beacon Frames and parsing the timestamp. I use the timestamps to compute the interval between captured Beacon Frames. Most of the time the interval is what it should be, namely 102.4ms. However, every 5-6 packets show an interval of a multiple of 102.4ms, this can be 204, 306 and up to 800ms. I don't know if this is due to AP not sending those Beacon Frames or my pcap not capturing

Eddystone Javascript find UID

由 ♀尐吖头ヾ 提交于 2019-12-25 03:51:55
问题 I am trying to build an android app in js that can detect eddystone beacons emitting UID. I followed this : https://evothings.com/detecting-eddystone-beacons-in-javascript-made-easy/ But I can only detect beacon html. I cannot find the line where you can look for UID. Does anyone has an idea ? 回答1: Are you sure your beacon is set to broadcast the Eddystone-UID packet? The thing to keep in mind is, Eddystone-UID and Eddystone-URL are two completely separate types of packets, and your beacon

Not able to start notification after detecting the beacon

由 空扰寡人 提交于 2019-12-23 05:33:12
问题 I'm using Android Beacon Library to detect beacon and start a simple application. Currently I'm able to start beacon service,which detects beacon after every 5 min(default time).But the thing is after every 5 mins my application just get started without giving me the notification in status bar of mobile.Required scenario - after detection, a notification should come up on screen and by clicking on that notification a activity should get start. Following is the class code, which contains a

Turning a mobile phone into a beacon

由 帅比萌擦擦* 提交于 2019-12-23 04:15:07
问题 I'm trying to build an access control system using BLE beacons and a web server. A mobile phone will transmit a beacon signal near the gate and the beacon will be forwarded to the server to decide whether this person should pass. The problem is transmitting a beacon without encryption is not safe, i need to encrypt the beacons. The question is: is there an API for web applications to resolve the Eddystone EID encrypted beacon without using google web service? Another question: is the

codename one nfc beacon

由 谁都会走 提交于 2019-12-23 03:46:09
问题 i am trying to do some tests with nfc and beacons with Codename One. I'm reading that Codename One doesn't support them on some old posts, any news about it? It seems that the only way is going on native but i'm totally new to it. Any suggestions where to start or any hint? Thanks in advance 回答1: You might look at the source code for a couple of CN1Libs at http://www.codenameone.com/cn1libs.html There you can see some of the native code implementations. It is more challenging to write a

天吉互娱游戏隐私政策

由 混江龙づ霸主 提交于 2019-12-21 11:47:40
【推荐】2019 Java 开发者跳槽指南.pdf(吐血整理) >>> 一、【引言】 四川天吉幻影互娱科技有限公司（以下简称天吉互娱）重视用户的隐私。您在使用我们的服务时，我们可能会收集和使用您的相关信息。我们希望通过本《隐私政策》向您说明，在使用我们的服务时，我们如何收集、使用、储存和分享这些信息，以及我们为您提供的访问、更新、控制和保护这些信息的方式。本《隐私政策》与您所使用的天吉互娱服务息息相关，希望您仔细阅读，在需要时，按照本《隐私政策》的指引，作出您认为适当的选择。本《隐私政策》中涉及的相关技术词汇，我们尽量以简明扼要的表述，并提供进一步说明的链接，以便您的理解。 您使用或继续使用我们的服务，即意味着同意我们按照本《隐私政策》收集、使用、储存和分享您的相关信息。如对本《隐私政策》或相关事宜有任何问题，请与我们联系。 二、【我们可能收集的信息】 我们提供服务时，可能会收集、储存和使用下列与您有关的信息。如果您不提供相关信息，可能无法注册成为我们的用户或无法享受我们提供的某些服务，或者无法达到相关服务拟达到的效果。 您提供的信息 • 您在注册账户或使用我们的服务时，向我们提供的相关个人信息，例如电话号码、电子邮件或银行卡号等； • 您通过我们的服务向其他方提供的共享信息，以及您使用我们的服务时所储存的信息。 其他方分享的您的信息 •

Does MAC ID broadcasted in Eddystone Beacon change?

由 余生长醉 提交于 2019-12-20 06:47:15
问题 I'll describe my setup : I have made an android application that simulates Eddystone beacon. I was able to detect the Eddystone beacon on my phone using Beacon Toy app from PlayStore. But the thing is , from the last time I checked , the MAC ID displayed has changed. I can identify its the same beacon because of the namespace and instance id being the same but under different MacID. Could someone suggest what is happening here ? I was under the impression that MacID stays constant. 回答1: Yes,

Cobalt Strike学习笔记

由 生来就可爱ヽ(ⅴ＜●) 提交于 2019-12-16 10:50:16
　　Cobalt Strike 一款以metasploit为基础的GUI的框架式渗透测试工具，集成了端口转发、服务扫描，自动化溢出，多模式端口监听，win exe木马生成，win dll木马生成，java木马生成，office宏病毒生成，木马捆绑；钓鱼攻击包括：站点克隆，目标信息获取，java执行，浏览器自动攻击等等。Cobalt Strike主要用于团队作战，能让多个攻击者同时连接到团体服务器上，共享攻击资源与目标信息和sessions。 　　 Cobalt Strike ，据说现在最新版为3.9，主要分为试用版和付费版，试用版为21天，付费版3500美元，据说网上也有一些 破解教程 ， cobaltstrik3.6破解版下载 密码: 51tg。因为Cobalt Strike是美国对外限制型出口软件，只在美国和加拿大允许发售，所以我们需要google搜索下usa的个人代理来绕开限制。 0x01 安装与运行 　　Cobalt Strike需要JAVA环境，需要注意的是JAVA环境不要安装最新版，否则会出一些问题，Cobalt Strike分为客户端和服务端可分布式操作可以协同作战。但一定要架设在外网上，或者自己想要搭建的环境中，服务器端只能运行在Linux系统上。其中关键的文件是teamserver以及cobaltstrike.jar，将这两个文件放到服务器上同一个目录，然后运行：

802.11常见帧

由 落爺英雄遲暮 提交于 2019-12-16 00:04:49
1、802.11 帧类型 802.11协议有规定三种类型的帧，分别时管理帧，控制帧和数据帧。 （1）管理帧 有线通信和无线通信的最大区别是什么？那就是有没有用网线！有线客户端如果想连接某个网络，只要将网线接到对应的路由器上就好了，但是无线客户端想完成这个“接入”动作应该怎么办呢？这就需要管理帧的帮忙， 管理帧的主要工作就是管理无线客户端的接入和断开 。有线连接并不太需要管理帧的帮忙，插拔网线的动作也很简单，但是无线接入却复杂得多。 管理帧是不带上层payload信息的，但是它携带一些固定大小的Information felds和可变大小的Information elements （IE） 。 管理帧主要包括下面这些种类： Association request Association response Reassociation request Reassociation response Probe request Probe response Beacon Announcement traffic indication message (ATIM) Disassociation Authentication Deauthentication Action （2）控制帧 有线通信和无线通信另外一个区别是传输媒介的稳定性，无线因为传输媒介是电磁波，容易受到各种干而变得不稳定
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