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5th International Symposium on Human Aspects of Information Security and Assurance (HAISA 2011)

5th International Symposium on Human Aspects of Information Security and Assurance (HAISA 2011)
London, UK, July 7-8, 2011
ISBN: 978-1-84102-284-0

Title: 2-Factor Authentication with 2D Barcodes
Author(s): Luke Hebbes, Chris Chan
Reference: pp86-96
Keywords: 2-factor authentication, QR codes, 2D barcodes, CHAP, ECC, PKI-SIM
Abstract: An improved user-friendly secure authentication scheme using 2D barcodes is proposed in this paper. The proposed scheme uses a known mobile device as a second factor to decode an encrypted message transferred as a 2D barcode and read via a camera on the mobile device. A one-time passcode is produced from this for authentication. Elliptic curve public-key codes are used on a PKI-SIM card to encrypt a challenge as well as additional temporal data. The proposed scheme improves the security and usability of multi-factor authentication and transaction verification without requiring increased investment in hardware or user training.
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