design of secure&robust ds

7/31/2019 Design of Secure&Robust Ds

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Design of a robust and secure digital signaturescheme for image authentication over wireless

channels


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Contents

Modules design

-> Image Uploading

-> Wavelet decomposition-> Digital signature

-> Crypto signature

-> Verification:

-> Image authentication

Conclusion


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Introduction: The introduction of 3G wireless communication

systems, together with the invasive distributionof digital images and the growing concern ontheir originality triggers

To meet this need, a content-based imageauthentication scheme that is suitable for aninsecure network and robust to transmissionerrors is proposed.

The proposed scheme exploits the scalability of astructural digital signature in order to achieve agood tradeoff between security and imagetransfer for networked image applications.


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Abstract:

An emergent need of authenticating imagesreceived by unreliable channels, such as publicInternet and wireless networks.

To meet this need, a content-based imageauthentication scheme that is suitable for aninsecure network and robust to transmissionerrors is proposed


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Existing System

In existing system a distributed networkenvironment that makes multimedia contentsvulnerable to privacy and malicious attacks.

For insecure environments, it is possible for anenemy to tamper with images duringtransmission.

These techniques are required to be robustagainst normal image processing andtransmission errors, while being able to detectmalevolent tampering on the image.


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Proposed System

In this paper, a modified digital signature schemefor image authentication has been proposed.

Content-dependent structural image features andwavelet. Liter parameterization is incorporated intothe traditional crypto signature

The proposed scheme does not require anycomputational overhead, it is especially suited forwireless authentication systems and other real-timeapplications.


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Block Diagram

Image signing procedure


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Block DiagramImage authentication procedure


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System Design


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Sender Use Case


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Receiver Use case


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Sender Sequence Diagram


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Receiver Sequence Diagram


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Activity


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Sender Collaboration


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Receiver Collaboration


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Sender Side Diagram


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Receiver Side Diagram


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Conclusion

Content-dependent structural image features and

wavelet filter parameterization are incorporatedinto the traditional crypto signature scheme.

To enhance the system robustness and security

Because the proposed scheme does not requireany computational overhead.

It is especially suited for wireless authenticationsystems and other real-time applications.

The analysis and the experimental results confirmthat the proposed scheme can achieve goodrobustness against transmission errors.


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THANK YOU

design of secure&robust ds

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