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In general, JPEG2000 code streams have marker codes in the header, which define particular meanings such as start of packet and end of code stream. Marker codes do not exist in the data part of code streams. The selective encryption of the data part has been considered to avoid generating marker codes. Such encryption is effective in business content exchange. To handle this issue, some schemes have...
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...
This paper studies the joint security and performance enhancement of secure arithmetic coding (AC) for digital rights management applications. The proposed cryptosystem incorporates the interval splitting AC with a simple bit-wise XOR operation step. Security analysis results show that the proposed scheme provides satisfactory level of security against the cipher-only attack, the chosen-plaintext...
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