MULTI-MODE DATA SECURITY FOR SECRET COMMUNICATION

Multi-agent system security for mobile communication

This thesis investigates security in multi-agent systems for mobile communication. Mobile as well as non-mobile agent technology is addressed. A general security analysis based on properties of agents and multi-agent systems is presented along with an overview of security measures applicable to multi-agent systems, and in particular to mobile agent systems. A security architecture, designed for...

Security Limitations of Using Secret Sharing for Data Outsourcing

Three recently proposed schemes use secret sharing to support privacy-preserving data outsourcing. Each secret in the database is split into n shares, which are distributed to independent data servers. A trusted client can use any k shares to reconstruct the secret. These schemes claim to offer security even when k or more servers collude, as long as certain information such as the finite field...

Encryption Protected Reversible Data Hiding for Secret Communication

Security has become an important issue with the proliferation of digital communication. Multimedia sources such as images plays an important role in security of data communication. Data hiding technique can be used to implant secret data in host images where existence of data is undisclosed which reduces chances of unauthorized access. Some applications containing legal considerations require r...

Security Protocols for Secret Santa

Multi-Bit Data Hiding Scheme for Compressing Secret Messages

The goal of data hiding techniques usually considers two issues, embedding capacity and image quality. Consequently, in order to achieve high embedding capacity and good image quality, a data hiding scheme combining run-length encoding (RLE) with multi-bit embedding is proposed in this paper. This work has three major contributions. First, the embedding capacity is increased 62% because the sec...