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- W2069361936 abstract "Degradative encryption, a new selective image encryption paradigm, is proposed to encrypt only a small part of image data to make the detail blurred but keep the skeleton discernible. The efficiency is further optimized by combining compression and encryption. A format-compliant degradative encryption algorithm based on set partitioning in hierarchical trees (SPIHT) is then proposed, and the scheme is designed to work in progressive mode for gaining a tradeoff between efficiency and security. Extensive experiments are conducted to evaluate the strength and efficiency of the scheme, and it is found that less than 10% data need to be encrypted for a secure degradation. In security analysis, the scheme is verified to be immune to cryptographic attacks as well as those adversaries utilizing image processing techniques. The scheme can find its wide applications in online try-and-buy service on mobile devices, searchable multimedia encryption in cloud computing, etc." @default.
- W2069361936 created "2016-06-24" @default.
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- W2069361936 date "2012-11-01" @default.
- W2069361936 modified "2023-09-26" @default.
- W2069361936 title "Degradative encryption: An efficient way to protect SPIHT compressed images" @default.
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- W2069361936 doi "https://doi.org/10.1016/j.optcom.2012.06.097" @default.
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