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In this paper, an efficient and secure encryption scheme for JPEG2000 codestream is proposed. The scheme encrypts each codeblock contribution to a packet (CCP) and does not introduce superfluous JPEG2000 markers in the protected codestream. It achieves full information protection for data confidentiality, and maintains all the advanced features of the original JPEG2000 codestream such as error resilience...
RFID is a non-contact, multi-objective automatic identification technology, widely used in traceability from farm to supermarket. But standardization and privacy are the main problems to solve urgently for recent RFID traceability systems. In this paper, a standard format for the content of the RFID tags compliant with the EPCglobal standard is introduced, and the conversion between EAN-128 bar code...
Nowadays, video communication of people such as video-phone and video conferencing systems must protect privacy, especially when these applications are based on open IP-network. In this paper, symmetric key encryption and public-key encryption techniques are used to ensure privacy information security. At the same time, a real-time scrambling approach to conceal video information is presented. The...
We consider a secure verification problem in which Alice wants to verify whether her signal Xn is compatible with Bob's signal Yn, where Xn and Yn are drawn i.i.d. according to a joint distribution p(x, y). The notion of compatibility is defined as the requirement that p(x, y) belongs to a certain set A of allowable joint distributions. For privacy, Alice jointly encrypts and encodes Xn and transmits...
Content distribution systems benefit from network coding in terms of error/loss protection and faster dissemination at the cost of exposing the data to intermediate nodes that are not the intended recipients. In these systems data secrecy is at risk and it can be guaranteed by using encryption as a straightforward method. However, this inevitably increases the communication costs and decreases the...
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