Distributed delegated path discovery and validation
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United States of America Patent
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Apr 22, 2014
Grant Date -
Jul 14, 2005
app pub date -
Nov 19, 2004
filing date -
Nov 19, 2003
priority date (Note) -
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status (Latency Note)
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Abstract
Providing path validation information for a system includes determining paths between a subset of certificate of the system and at least one trust root, storing each of the paths in a table prior to a request for path validation information, and fetching the validation information stored in the table in response to a request for path validation information. Providing path validation information may also include digitally signing the validation information. Providing path validation information may also include applying constraints to the validation information and only providing validation information that is consistent with the constraints. Determining paths may include constructing a directed graph of trusted roots and the subset of certificates and performing a depth-first acyclic search of the graph.
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