Date of Publication :17th May 2017

Abstract: One of the natural and reliable solutions to user authentication problem is biometric recognition. Non universality, intra-class variation etc. are some problems in Unimodal biometric system. Therefore multimodal biometric systems are used to overcome these problems and to increase the level of security. The aim of this paper is to summarize the common attacks against biometric systems (fake biometrics, template modification etc.) and discuss techniques that can be used to counter them. The features that extracted from the biometric samples considered a critical part of biometric system which is called biometric template. Template security schemes are dependent on the overall performance parameters of the system and must be computationally hard to avoid modality reconstruction. This paper also summarizes different biometric template protection schemes (salting, visual cryptography etc.) and discusses their advantages and limitations

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