Hybrid Steganography Toolkit for Mobile Phones Using In-Air Signature Security

improving the security of multimedia data is one of the crucial points required to assure the personal information. This paper presents a biometric authentication procedure consisting of verifying the identity of valid users by making a signature in the air while holding the mobile phone embedded with accelerometer. The verification of the identity will open up the application of steganography which consist of image on which various processing techniques can be applied The proposed scheme is based on hybrid steganography techniques which uses combination of Chaos, Difference expansion and Alpha channel embedding algorithms, to achieve high capacity digital data security and provide copyright protection to the multimedia data. Combination of both provides superior security control. Thesuggested algorithm is messy watermarking technique. Watermarking is a process that embeds data, called a watermark, digital signature, or tag, into a multimedia object. The watermark can then be extorted or detected or tampered to make a claim about the multimedia object. This paper also proposes the scheme to verify the tampered watermarks. Watermarks have a variety of uses that include personal protection and deterrence against theft to maintain data integrity, secrecy and security.