Fujitsu incorporates blockchain to secure data exchange networks

Blockchain is the major centerpiece in Fujitsu's new initiative to improve and secure data exchange networks, facilitating faster and safer data sharing tools.

The Fujitsu Virtual Private Digital Exchange Technology can apply blockchain that controls access to distributed data. It can register data attribute information and ID information based on where the data is stored and also manage the access control policy to limit users who can access the data.

Blockchain is already widely use to distribute virtual currencies, but now it is being applied further afield. Fujitsu says that technologies such as IoT, big data and artificial intelligence are generating large volumes of diverse data, however this data comes with security concerns.

The company developed software for data exchange networks that allows organizations to share data, while keeping it in their internal systems.

The Fujitsu Virtual Private Digital Exchange Technology can:

Record registrations of data attribute information and ID information based on where the data is stored

Data providers can record attribute information (for example, type and element of data) and ID information linked with data storage on the blockchain's distributed ledger, while the data remains where it is stored.

That is, users can easily search for data according to the attribute information recorded in the distributed ledger. They can also obtain ID information for the data. Data providers do not need to allow users to download the data directly from where it is stored. Instead, they encrypt the data and send it to users who initially provide their ID information. This enables secure data sharing.

Manage access policies for each dataset

When registering information on the blockchain, data providers can manage the access policy for each data set. This enables the providers to selectively disclose information to those who are granted access to the distributed ledger.

Produce automated processes from data request to transmission

This software features smart contracts which enables efficient data exchange. Smart contracts will automatically execute a series of processes after the data has been requested, from access authorization to transmission of data.

This new software is based on the Hyperledger Fabric, a consortium-type blockchain, and was created by developing proprietary smart contracts executed on the blockchain.

Fujitsu states that it wants to expand and commercialise the software as part of the Fujitsu Network Virtuora series during fiscal 2017.