Voice over internet protocol voicemail security system using two factor authentication and biometric prints with new efficient hybrid cryptosystem

New hybrid cryptosystems represent a highly effective method for increasing security levels of Voice over Internet Protocol (VoIP) systems. In this paper, a dual-security cryptosystem for VoIP voicemail is proposed based on two-factor authentication, followed by Baker Map and RC6 encryption. Two security system models are proposed: the first involves biometric voiceprint encryption with pin code, and the second involves dual-biometric encryption...