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Journal of Engineering and Applied Sciences

Year: 2017  |  Volume: 12  |  Issue: 8 SI  |  Page No.: 8421 - 8425

A Novel Method for Enhancing Biometric Systems Security Using Watermarking

S. Balaji, M. Janga Reddy and Habibullah Khan


In order to identify an individual, biometric systems are extensively used in India. Recently JNT University, Hyderabad has introduced finger print Biometric system for all faculty working in various private engineering colleges in Telangana. Every day the faculty have to record their biometric attendance in the college, so that, it will be recorded in the server of JNTU, Hyderabad. In this way, the university will have a way to monitor the faculty who are really working in private Engineering college, so that, they can identify the presence of real faculty members. However, the system is vulnerable to various kinds of attacks. In this study, we introduce a novel method for enhancing security of biometric systems by combining watermark with the fingerprint system. Two spatial domain watermarking methods for fingerprint images are proposed in this. The first method utilizes gradient orientation analysis in watermark embedding, so that, the watermarking process alters none of the features extracted using gradient information. The second method preserves the singular points in the fingerprint image which in turn preserves the classification of the watermarked fingerprint image (e.g., into arch, left loop classes). In both methods, watermark data consisted of 154 bits corresponding to the 7 bit ASCII code of string fingerprint watermark.