Secure Speaker Recognition using BGN Cryptosystem with Prime Order Bilinear Group

S. Selva Nidhyananthan, Prasad M. and Shantha Selva Kumari R.
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S. Selva Nidhyananthan: Mepco Schlenk Engineering College, Sivakasi, India
Prasad M.: Mepco Schlenk Engineering College, Sivakasi, India
Shantha Selva Kumari R.: Mepco Schlenk Engineering College, Sivakasi, India

International Journal of Information Security and Privacy (IJISP), 2015, vol. 9, issue 4, 1-19

Abstract: Speech being a unique characteristic of an individual is widely used in speaker verification and speaker identification tasks in applications such as authentication and surveillance respectively. In this paper, framework for secure speaker recognition system using BGN Cryptosystem, where the system is able to perform the necessary operations without being able to observe the speech input provided by the user during speaker recognition process. Secure speaker recognition makes use of Secure Multiparty Computation (SMC) based on the homomorphic properties of cryptosystem. Among the cryptosytem with homomorphic properties BGN is preferable, because it is partially doubly homomorphic, which can perform arbitrary number of addition and only one multiplication. But the main disadvantage of using BGN cryptosystem is its execution time. In proposed system, the execution time is reduced by a factor of 12 by replacing conventional composite order group by prime order group. This leads to an efficient secure speaker recognition.

Date: 2015
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