Open Text Corporation

Charles Roy Rye

Systems, methods and products for enabling parallelized verification of a forensic copy generated using a non-parallelizable hashing algorithm. Disclosed embodiments generate the forensic copy of a data source using a non-parallelizable algorithm. In addition to generating a hash of the source data, intermediate hash states are stored for successive blocks of data from the data source. During verification of the forensic copy, the intermediate hash states and identifiers of the data blocks are retrieved from a data structure that is saved with the forensic copy. The non-parallelizable algorithm is used to hash each data block using the intermediate hash state preceding the data block as a starting hash state, then the hash of the data block is compared to the intermediate hash state following the data block to verify the data block. If all data blocks are successfully verified, the forensic copy is verified, otherwise verification fails.

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Waukesha, WI, United States of America

Charles Roy Rye