CamTalk: A Bidirectional Light Communications Framework for Secure Communications on Smartphones

Xie, Mengjun; Liang, Hao; Yoshigoe, Kenji; Bian, Jiang

doi:10.1007/978-3-319-04283-1_3

Cited by 5 publications

(9 citation statements)

References 11 publications

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“…Indeed, camera-display communication have been applied to bi-directional scenarios too. Among them, CamTalk [19] was the first solution to securely exchange data between two smartphones. CamTalk leverages QR codes and supports a session-oriented communication scheme, inspired by the Transmission Control Protocol (TCP).…”

Section: Related Workmentioning

confidence: 99%

“…Furthermore, MAMBA has a low decoding overhead because it does not have to perform the fast Fourier transform as solutions operating on the frequency domain of the code, e.g., PixNet [11] and FOCUS [8]. Finally, MAMBA performs adaptive bi-directional communication, as opposed to CamTalk [19] and [7], which instead use fixed transmission parameters.…”

Section: Related Workmentioning

confidence: 99%

“…2) Session establishment: The session establishment phase follows a three-way handshake inspired by the TCP, similar to [7,19]. However, session establishment in MAMBA relies on a peer-to-peer mode, in the sense that the two communicating ends do not have to agree beforehand on being sender (i.e., client) or receiver (i.e., server).…”

Section: Adaptive Transmission Protocolmentioning

confidence: 99%

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MAMBA: Adaptive and Bi-directional Data Transfer for Reliable Camera-display Communication

Bufalino

Freire

Kannala

et al. 2020

2020 IEEE 21st International Symposium on "A World of Wireless, Mobile and Multimedia Networks" (WoWMoM)

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Camera-display communication uses visible light to transfer data wirelessly by using a screen as a transmitter and a camera as a receiver. Such an approach faces several challenges to be employed in practice, including unreliable decoding due to imperfect synchronization and channel impairments. This article introduces MAMBA, a mobile application framework for camera-display communications through adaptive and bidimensional color barcodes. MAMBA employs efficient computer vision techniques and scales with the number of blocks in the barcodes, rather than with the number of pixels in the captured image. As a consequence, it allows to take full advantage from the high-resolution cameras available on modern mobile devices. In addition, MAMBA realizes the first adaptive and bi-directional protocol for camera-display communications with fast feedback. Specifically, MAMBA jointly carries out dynamic adaptation of frame length based on both environmental conditions and the processing capabilities of the devices. Experimental results show that MAMBA is effective, thereby allowing reliable real-time communication in a variety of operating conditions.

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Section: Related Workmentioning

confidence: 99%

Section: Related Workmentioning

confidence: 99%

Section: Adaptive Transmission Protocolmentioning

confidence: 99%

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MAMBA: Adaptive and Bi-directional Data Transfer for Reliable Camera-display Communication

Bufalino

Freire

Kannala

et al. 2020

2020 IEEE 21st International Symposium on "A World of Wireless, Mobile and Multimedia Networks" (WoWMoM)

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“…Xie et al [30] proposed CamTalk, a light-based communication scheme for bidirectional secure data transfer between smart devices using smart device screen camera channel.…”

Section: Related Workmentioning

confidence: 99%

The implementation of two-factor web authentication system based on facial recognition

Zavrak¹,

Yılmaz²,

Bodur³

et al. 2017

GJCS

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The security of the web is a very important issue, because every day we make a variety of operations in it, for different reasons, during the day. Apart from protecting the information, contacts, accounts and data on the web, such data should be inaccessible to third-party persons. This in turn depends on the success of the authentication process performed on the individual web. With authentication, it is possible for users to protect their information and make their transactions only for themselves. However, the authentication mechanism used at this point must have a high level of safety. With the purpose to damage a person's privacy and access account information and gain profit in this way, many malicious persons have developed various methods of attacks to bypass authentication mechanisms. These methods sometimes succeed on a variety of authentication mechanisms, and put users and relevant websites into a difficult situation, and may even damage them in a variety of aspects. In order to protect personal information on the web system and provide the security of transactions carried out at a high level, in this study, we propose a two-factor authentication mechanism based on facial recognition. Besides, we discuss some implementation details about the proposed method. The proposed method aims to bring a new approach to the authentication system to perform our online process with the highest security. In addition to the standard authentication systems, using face recognition as a secondary level of security will contribute to the emergence of a new authentication mechanism.

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“…Neither SiB nor VIC is suitable for web authentication. Recently, Xie et al proposed CamTalk, a light based communication framework for bidirectional secure information transfer between smartphones by leveraging smartphone's displaycamera channel [31].…”

Section: Introductionmentioning

confidence: 99%

CamAuth: Securing Web Authentication with Camera

Xie

Yoshigoe

et al. 2015

2015 IEEE 16th International Symposium on High Assurance Systems Engineering

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Frequent outbreak of password database leaks and server breaches in recent years manifests the aggravated security problems of web authentication using only password. Two-factor authentication, despite being more secure and strongly promoted, has not been widely applied to web authentication. Leveraging the unprecedented popularity of both personal mobile devices (e.g., smartphones) and barcode scans through camera, we explore a new horizon in the design space of two-factor authentication. In this paper, we present CamAuth, a web authentication scheme that exploits pervasive mobile devices and digital cameras to counter various password attacks including man-in-the-middle and phishing attacks. In CamAuth, a mobile device is used as the second authentication factor to vouch for the identity of a use who is performing a web login from a PC. The device communicates directly with the PC through the secure visible light communication channels, which incurs no cellular cost and is immune to radio frequency attacks. CamAuth employs publickey cryptography to ensure the security of authentication process. We implemented a prototype system of CamAuth that consists of an Android application, a Chrome browser extension, and a Java-based web server. Our evaluation results indicate that CamAuth is a viable scheme for enhancing the security of web authentication.

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CamTalk: A Bidirectional Light Communications Framework for Secure Communications on Smartphones

Cited by 5 publications

References 11 publications

MAMBA: Adaptive and Bi-directional Data Transfer for Reliable Camera-display Communication

MAMBA: Adaptive and Bi-directional Data Transfer for Reliable Camera-display Communication

The implementation of two-factor web authentication system based on facial recognition

CamAuth: Securing Web Authentication with Camera

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