Audio similarity measure based on Renyi's quadratic entropy

Yu, Xiaoqing; Pan, Xueqian; Yang, Wei; Wan, Wanggen; Zhang, Jing

doi:10.1109/icalip.2010.5685066

Cited by 2 publications

(1 citation statement)

References 6 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In this subsection, we describe three typical metrics for measuring the similarity between two recorded sounds: the Euclidean distance, cross-correlation, and cosine similarity [26]. We evaluated our method using these metrics.…”

Section: Sound Similaritymentioning

confidence: 99%

Sound-Proximity: 2-Factor Authentication against Relay Attack on Passive Keyless Entry and Start System

Choi

Seo

Lee

2018

Journal of Advanced Transportation

View full text Add to dashboard Cite

Passive keyless entry and start system has been widely used in modern cars. Car owners can open the door or start the engine merely by having the key in their pocket. PKES was originally designed to establish a communication channel between the car and its key within approximately one meter. However, the channel is vulnerable to relay attacks by which attackers unlock the door even if the key is out of range. Even though relay attacks have been recognized as a potential threat for over ten years, such attacks were thought to be impractical due to highly expensive equipment; however, the required cost is gradually practical. Recently, a relay attack has been demonstrated with equipment being sold only under $100. In this paper, we propose a sound-based proximity-detection method to prevent relay attacks on PKES systems. The sound is eligible to be applied to PKES because audio systems are commonly available in cars. We evaluate our method, considering environments where cars are commonly parked, and present the recording time satisfying both usability and security. In addition, we newly define an advanced attack, called the record-and-playback attack, for sound-based proximity detection, demonstrating that our method is robust to such an attack.

show abstract

Section: Sound Similaritymentioning

confidence: 99%