Patent · US Expired

Data file authentication device

US6167516A · kind A · utility

10Cited by
7References
15Claims
0Family size

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Inventors

Key dates

Filing dateNov 25, 1997
Grant dateDec 26, 2000
Priority date
Expiry dateNov 25, 2017

Classification

  • Technology area (CPC H)Electricity
  • CPC primaryH04L9/3247
  • WIPO fieldDigital communication
  • WIPO sectorElectrical engineering

Abstract

A device receives at one input (2) data of a file to be processed, and includes a processing module (5) which at the start of receiving the file, react by three operative stages. These stages include first stage of inserting data blocks from the file into a source memory (MS), after transformation, a second continuous stage of processing each data block of the file, transformed and inserted into the source memory (MS), and a third stage of generating a signature from the transformed, inserted and processed blocks.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.