发明名称 |
METHOD AND SYSTEM FOR THE SECURE DISTRIBUTION OF COMPRESSED DIGITAL TEXTS |
摘要 |
The invention relates to a method for the secure distribution of compressed digital texts comprising blocks of binary data and resulting from transformations applied to an original text. The inventive method comprises two steps, namely: a preparatory step consisting in modifying at least one binary datum in one of the aforementioned blocks using at least one substitution operation involving the extraction of said datum from a block and the replacement thereof with a decoy; and a step consisting in transmitting (i) a modified compressed digital text (5) that conforms to the format of the original text, comprising blocks that were modified during the preparatory step, and, over a separate channel from the modified compressed text (5), (ii) a piece of complementary digital information (4) which can be used to restore the original compressed digital text (1) on the destination equipment from the modified compressed digital text (5) and said complementary information (4). The invention also relates to a system which is used to implement said method. |
申请公布号 |
WO2005088902(A2) |
申请公布日期 |
2005.09.22 |
申请号 |
WO2005FR00553 |
申请日期 |
2005.03.08 |
申请人 |
MEDIALIVE;LECOMTE, DANIEL;CAPOROSSI, JEROME;PARAYRE-MITZOVA, DANIELA |
发明人 |
LECOMTE, DANIEL;CAPOROSSI, JEROME;PARAYRE-MITZOVA, DANIELA |
分类号 |
G06F21/10;G06F21/62;G11B20/00 |
主分类号 |
G06F21/10 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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