{"id":164920,"date":"2005-01-01T00:00:00","date_gmt":"2005-01-01T00:00:00","guid":{"rendered":"https:\/\/cm-edgetun.pages.dev\/en-us\/research\/msr-research-item\/jpeg-2000-encryption-enabling-fine-granularity-scalability-without-decryption\/"},"modified":"2018-10-16T21:15:15","modified_gmt":"2018-10-17T04:15:15","slug":"jpeg-2000-encryption-enabling-fine-granularity-scalability-without-decryption","status":"publish","type":"msr-research-item","link":"https:\/\/cm-edgetun.pages.dev\/en-us\/research\/publication\/jpeg-2000-encryption-enabling-fine-granularity-scalability-without-decryption\/","title":{"rendered":"JPEG 2000 Encryption Enabling Fine Granularity Scalability without Decryption"},"content":{"rendered":"<div class=\"asset-content\">\n<p>In this paper, we propose a novel encryption scheme for JPEG 2000 (J2K) and motion JPEG 2000. A block cipher in CBC mode is used to encrypt the bitstream of each J2K code-block. The encrypted J2K codestream preserves almost the same fine granularity scalability as the original J2K codestream yet with small or negligible overhead, and has fine and near RD-optimal truncations for a large range of bitrates. The proposed scheme enables desired transcoding directly on a single encrypted codestream without decryption to fit diverse capabilities of devices and heterogeneous networks with time-varying bandwidths. Any node, trusted or not, along the delivery path is able to perform desired transcoding without sacrificing the end-to-end security of the system.<\/p>\n<\/div>\n<p><!-- .asset-content --><\/p>\n","protected":false},"excerpt":{"rendered":"<p>In this paper, we propose a novel encryption scheme for JPEG 2000 (J2K) and motion JPEG 2000. A block cipher in CBC mode is used to encrypt the bitstream of each J2K code-block. The encrypted J2K codestream preserves almost the same fine granularity scalability as the original J2K codestream yet with small or negligible overhead, [&hellip;]<\/p>\n","protected":false},"featured_media":0,"template":"","meta":{"msr-url-field":"","msr-podcast-episode":"","msrModifiedDate":"","msrModifiedDateEnabled":false,"ep_exclude_from_search":false,"_classifai_error":"","msr-author-ordering":[{"type":"user_nicename","value":"binzhu"},{"type":"user_nicename","value":"yayang"},{"type":"user_nicename","value":"spli"}],"msr_publishername":"IEEE","msr_publisher_other":"","msr_booktitle":"","msr_chapter":"","msr_edition":"IEEE Int. Symp. Circuits and Systems 2005","msr_editors":"","msr_how_published":"","msr_isbn":"","msr_issue":"","msr_journal":"","msr_number":"","msr_organization":"","msr_pages_string":"","msr_page_range_start":"","msr_page_range_end":"","msr_series":"","msr_volume":"","msr_copyright":"","msr_conference_name":"IEEE Int. Symp. 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