System and method for performing a trust-preserving migration of data objects from a source to a target
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United States of America Patent
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Aug 9, 2011
Grant Date -
Apr 5, 2007
app pub date -
Oct 5, 2005
filing date -
Oct 5, 2005
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A data migration system performs a tamper-resistant data migration for regulatory compliance systems. The system generates a secure hash for the data object, adds a timestamp to the hash, produces a signature for the data object using a private key, and includes the signature in a signature summary of data objects. Immediately prior to data migration, the system signs the signature summary of the set of data objects to be migrated. The signature of the data object maintains integrity of the data object by preventing undetectable modification to a data object during migration. The signed signature summary maintains completeness by preventing undetectable removal of a data object from or insertion of a data object into the set of data objects during migration.
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