New security and control protocol for VoIP based on steganography and digital watermarking

In this paper new, lightweight security and control protocol for Voice over Internet Protocol (VoIP) service is presented. It is the alternative for the IETF's (Internet Engineering Task Force) RTCP (Real-Time Control Protocol) for real-time application's traffic. Additionally this solution offers authentication and integrity of voice send and it is capable of exchanging and verifying QoS and security parameters. It is based on two information hiding techniques: digital watermarking and steganography. That is why it does not consume additional bandwidth and the data transmitted is inseparably bound to the voice content.

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