One-Time Password Generation and Two-Factor Authentication Using Molecules and Light
Journal article, 2017

Herein, we report the first example of one-time password (OTP) generation and two-factor authentication (2FA) using a molecular approach. OTPs are passwords that are valid for one entry only. For the next login session, a new, different password is generated. This brings the advantage that any undesired recording of a password will not risk the security of the authentication process. Our molecular realization of the OTP generator is based on a photochromic molecular triad where the optical input required to set the triad to the fluorescent form differs depending on the initial isomeric state.

molecular logic

photochromism

photoswitches

fluorescence

molecular devices

Author

Gaowa Naren

Chalmers, Chemistry and Chemical Engineering, Chemistry and Biochemistry, Physical Chemistry

Shiming Li

Chalmers, Chemistry and Chemical Engineering, Chemistry and Biochemistry, Physical Chemistry

Joakim Andreasson

Chalmers, Chemistry and Chemical Engineering, Chemistry and Biochemistry, Physical Chemistry

ChemPhysChem

1439-4235 (ISSN) 1439-7641 (eISSN)

Vol. 18 13 1726-1729

Subject Categories

Physical Chemistry

DOI

10.1002/cphc.201700074

More information

Created

10/7/2017