Data verification method
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United States of America Patent
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May 6, 2014
Grant Date -
May 3, 2012
app pub date -
Jun 22, 2010
filing date -
Jun 26, 2009
priority date (Note) -
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Abstract
(EN)An electronic system (1) comprises a trusted processor (2), a trusted cache memory (3) and a mass storage memory (4). The data are stored in the mass storage memory (4), where the memories are divided into blocks, each block is identified by an address and the data are addressed via a verification tree. The verification tree is a tree structure comprising nodes where descendent nodes are attached to a root node and each node stores the address of the block containing each of its child nodes and a digest value of each block. A method for the verification of the data of such an electronic system comprises access to searched data at the same time reporting the corruption of data if a calculated digest is different from the current digest value.
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