Passphrases Beat Thermal Attacks: Evaluating Text Input Characteristics Against Thermal Attacks on Laptops and Smartphones

Autor:	Mohamed Khamis, Yomna Abdelrahman, Amr El-Mougy, Reem Hatem, Yasmeen Abdrabou
Rok vydání:	2021
Předmět:	Visual inspection business.product_category Touchscreen Computer science Human–computer interaction law Laptop Passphrase Text entry Side channel attack business Beat (music) law.invention
Zdroj:	Human-Computer Interaction – INTERACT 2021 ISBN: 9783030856090 INTERACT (4)
ISSN:	0302-9743
Popis:	We investigate the effectiveness of thermal attacks against input of text with different characteristics; we study text entry on a smartphone touchscreen and a laptop keyboard. First, we ran a study (N = 25) to collect a dataset of thermal images of short words, websites, complex strings (special characters, numbers, letters), passphrases and words with duplicate characters. Afterwards, 20 different participants visually inspected the thermal images to attempt to identify the text input. We found that long and complex strings are less vulnerable to thermal attacks, that visual inspection of thermal images reveals different parts of the entered text (36% on average and up to 82%) even if the attack is not fully successful, and that entering text on laptops is more vulnerable to thermal attacks than on smartphones. We conclude with three learned lessons and recommendations to resist thermal attacks.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4fa09e58982847a7e7bd69c9ad062f32 https://doi.org/10.1007/978-3-030-85610-6_41 Zobrazit plný text záznamu