Bit Whisperer: Improving Access Control over Ad-hoc, Short-range, Wireless Communications via Surface-bound Acoustics
Bit Whisperer: Improving Access Control over Ad-hoc, Short-range, Wireless Communications via Surface-bound Acoustics
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Bit Whisperer：通过表面声学改进对临时、短距离、无线通信的访问控制
DOI：
10.1145/3472749.3477980
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发表时间：
2021
期刊：
影响因子：
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通讯作者：
Das, Sauvik
中科院分区：
文献类型：
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作者：
Do, Youngwook;Singh, Siddhant;Li, Zhouyu;Craig, Steven R;Welch, Phoebe J;Shi, Chengzhi;Starner, Thad;Abowd, Gregory D;Das, Sauvik
蓝牙需要设备配对以确保数据传输的安全性，这使得许多需要易用性和“足够好”的安全性的自组织事务交互成为可能：例如，共享联系信息或安全链接到附近的人。我们介绍位耳语，一个特设的短距离无线通信系统，使“走起来，分享”数据传输与“足够好”的安全性。Bit Whisperer通过高频、听不见的声学信号将数据传输到位于固体表面上的邻近设备。物理表面有两个好处：它通过反射传播的声波来增强声学信号传输;并且，它使通信领域可见，帮助用户准确识别他们与谁共享数据而无需事先配对。通过一系列的技术评估，我们证明了Bit Whisperer对于常见用例是强大的，并且可以抵御可能的威胁。我们还实现了三个示例应用程序来演示Whisperer的实用性：1对1本地联系人共享，1对N私人链接共享以打开安全的群聊，以及1对N本地设备身份验证。
Bluetooth requires device pairing to ensure security in data transmission, encumbering a number of ad-hoc, transactional interactions that require both ease-of-use and “good enough” security: e.g., sharing contact information or secure links to people nearby. We introduce Bit Whisperer, an ad-hoc short-range wireless communication system that enables “walk up and share” data transmissions with “good enough” security. Bit Whisperer transmits data to proximate devices co-located on a solid surface through high frequency, inaudible acoustic signals. The physical surface has two benefits: it enhances acoustic signal transmission by reflecting sound waves as they propagate; and, it makes the domain of communication visible, helping users identify exactly with whom they are sharing data without prior pairing. Through a series of technical evaluations, we demonstrate that Bit Whisperer is robust for common use-cases and secure against likely threats. We also implement three example applications to demonstrate the utility of Whisperer: 1-to-1 local contact sharing, 1-to-N private link sharing to open a secure group chat, and 1-to-N local device authentication.