Odor-based individual authentication

Area of Science:

• Biometrics
• Analytical Chemistry
• Human Identification

Background:

• Traditional biometrics like fingerprints and facial recognition face security challenges due to potential theft and duplication.
• The unique chemical profiles of human odor, specifically volatile organic compounds (VOCs), present a more secure and difficult-to-forge alternative.
• Growing demand for secure and user-friendly authentication methods necessitates exploration of novel biometric modalities.

Purpose of the Study:

• To provide a comprehensive review of human odor-based individual authentication.
• To explore the potential of skin and breath odors for noninvasive personal identification.
• To examine the feasibility of implementing odor-based authentication systems.

Main Methods:

• Review of scientific literature on human odor composition and origins.
• Analysis of measurement techniques including canine olfaction, gas chromatography-mass spectrometry (GC-MS), and gas sensor arrays.
• Discussion of challenges and solutions for odor-based biometric systems.

Main Results:

• Human odor profiles, particularly from skin and breath, are unique and can be collected noninvasively.
• Various techniques exist for measuring and analyzing odor VOCs, each with specific advantages.
• Significant challenges remain in system implementation, but potential solutions are being developed.

Conclusions:

• Human odor-based authentication is a promising, secure, and noninvasive biometric technology.
• Further research and development are needed to overcome implementation challenges.
• Odor biometrics offer a robust alternative to conventional identification methods.