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Mission critical applications uses mobile ad hoc network. Security is required to protect this data while transmitting in network. Biometric characteristic such as face, fingerprint, voice, iris, and retina can be potential alternative to generate a cryptographic key and enhance the security. In this paper non-invertible key generation using cancelable fingerprint is discussed. From the receivers fingerprint minutiae are generated. Applying one way transformation cancelable template is generated and stored into vectors. After shuffling vector data, a genetic operator two point crossover is applied and 256 bit key is generated for the encryption AES-256 algorithm. Authentication is done by watermarked face of the sender. The proposed model is analyzed against security attributes authentication, confidentiality, integrity.
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