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Fujitsu cracks multi-source data encryption conundrum

Posted: 16 Feb 2016     Print Version  Bookmark and Share


Controlling access to run matches

Yet another technology developed by the two Fujitsu labs flexibly controls match permissions in the cloud with which the match key for confirming match results is created from specific keys (pre-match keys) transmitted to the cloud for both data providers and the person performing the search (figure 3). The data provider creates rules governing which people can conduct matching, and can create and manage match keys for pairings of providers and searchers in the cloud on the basis of these rules.

Match key scheme

Figure 3: Match key scheme. Fujitsu Laboratories and Fujitsu Laboratories of America have developed a technology that can flexibly control match permissions in the cloud.

By applying this technology to genetic data or other medical data (figure 1), medical research institutes or pharmaceutical companies could see whether the information they need is included in a registered database while keeping patient data anonymised. Such applications are expected to support the diagnosis of rare diseases and create efficiencies in new drug discoveries.

The technology also enables near matches to allow for a difference of a few bits in the text strings. Fujitsu's tests confirmed that they could match one pair of text strings in 20ms using a typical PC. The company is working on compressing the data size and accelerating speed, with the aim of bringing it into practical implementation this fiscal year.

- Vivek Nanda

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