Server-based cryptography
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United States of America Patent
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May 26, 2009
Grant Date -
N/A
app pub date -
Apr 17, 2003
filing date -
Apr 17, 2002
priority date (Note) -
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Abstract
A system for securing data includes a set of descriptors associated with data, a node, and a server. The set of descriptors include a first group of descriptors, and at least one additional descriptor. Each descriptor has a respective, associated value. The node provides a first component by binding together the respective values of each of the first group of descriptors. The server receives the first component from the node, provides a key by binding together the first component and the respective values of each of the additional descriptor, and encrypts the data with the key. The user (via a token) and/or the server can provide at least one of the descriptors. At least one server can establish a trusted cryptographic virtual domain that exhibits an established trust based on the descriptors that are policy enforced.
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