发明名称 |
FILE PRESENCE DETECTION AND MONITORING |
摘要 |
<p>There is described a module for detecting an electronic file, the module embodied on a computer readable medium and configured for: receiving a portion of a file and extracting content from the portion; applying an initial hashing function numerous times to the content, the initial hashing function being applied to each one of a plurality of blocks of elements within the content and resulting in a representation for each one of the blocks; selecting one of the representations from multiple representations as an initial imprint for the file portion; comparing the initial imprint to contents of a first memory containing a plurality of detection imprints for known electronic files to be detected, the detection imprints having been created using at least the initial hashing function; and determining a match when the initial imprint corresponds to a detection imprint in the first memory.</p> |
申请公布号 |
EP2307961(A4) |
申请公布日期 |
2013.11.06 |
申请号 |
EP20090756998 |
申请日期 |
2009.06.01 |
申请人 |
POLYVALOR, LIMITED PARTNERSHIP |
发明人 |
DAVID, JEAN-PIERRE |
分类号 |
G06F21/62;G06F11/30;H04L12/16;H04L29/06 |
主分类号 |
G06F21/62 |
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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