Signature Recognition and Verification: The Most Acceptable Biometrics for Security

Abstract As every person carries distinct signature with its specific behavioral feature, signatures are widely accepted biometric for authentication and identification. Hence, it is quite necessary to prove the authenticity of signature itself. The extraordinary diffusion of the internet in our daily life as well as growing need of personal verification in many daily applications, signature verification systems for authorization and authentication have become enormously important in every sector due to increasing concerns for security. Signature verification finds its application in the field of net banking, passport verification system, credit cards, bank cheques, which may be the target of duplicity. This leads to rising demand for processing of individual identification faster and more correctly such as an automatic signature verification system. The offline and online signature verification system are enumerated in this paper. On-line approach uses an electronic tablet and a stylus connected to a computer which extracts information about a signature. The dynamic information like; pressure, velocity are used for online approach. Offline systems are more applicable and easy to use in comparison with on-line systems but it is more difficult due to the lack of order of strokes, the velocity and other dynamic information. Feature extraction stage is the most important stage in both signature verification systems