Mitsubishi Electric Develops Searchable Encryption Platform Software
Japan's first software to support encryption and access control for cloud
TOKYO -- July 2, 2013
Mitsubishi Electric Corporation (TOKYO:6503) announced today it has developed
Japan's first searchable encryption platform software that supports both data
encryption and access control for users who perform keyword searches in the
cloud. The new software will enhance the security of cloud services where
sensitive information normally is uploaded in encrypted code but retrieved
without decrypting. The software will be presented at the DICOMO 2013
Symposium, which will take place at the Hotel Daiheigen in Hokkaido, Japan
from July 10–12.
1) Robust encryption technology for secure storage in cloud services
The platform software incorporates Mitsubishi Electric's searchable encryption
algorithm, which supports simple but useful access control functionality, such
as group-based document sharing. The encryption algorithm enables documents to
be encrypted so that only the users of designated groups (departments,
divisions, etc.) can perform keyword searches.
2) Large data searches in 1–3 seconds, or less
Mitsubishi Electric's new index generation software for searchable encryption
allows authorized users to issue a ticket, which is then used by the cloud
service provider to generate an index from the encrypted data for accelerated
searches. Each one-bit index accelerates the search by a factor of
approximately two. Mitsubishi Electric also has implemented a new automatic
parallelization system in the platform. As a result, searches require no more
than 1–3 seconds for 100,000 pieces of data, which is several hundred times
faster than Mitsubishi Electric's prototype system utilized for research.
3) No dedicated application required in client PCs
Encryption and key management programs are implemented as an ActiveX plug-in
module, so users on the client side are not required to install dedicated
application software in their PCs. Instead, they access the cloud services via
Internet Explorer. Also, the platform can be used with commercial DBMS
software, and SQL languages can be used to access the platform.
Pending patents for the technology total three in Japan and two overseas.
About Mitsubishi Electric Corporation
With over 90 years of experience in providing reliable, high-quality products,
Mitsubishi Electric Corporation (TOKYO:6503) is a recognized world leader in
the manufacture, marketing and sales of electrical and electronic equipment
used in information processing and communications, space development and
satellite communications, consumer electronics, industrial technology, energy,
transportation and building equipment. Embracing the spirit of its corporate
statement, Changes for the Better, and its environmental statement, Eco
Changes, Mitsubishi Electric endeavors to be a global, leading green company,
enriching society with technology. The company recorded consolidated group
sales of 3,567.1 billion yen (US$ 37.9 billion*) in the fiscal year ended
March 31, 2013. For more information visit http://www.MitsubishiElectric.com
*At an exchange rate of 94 yen to the US dollar, the rate given by the Tokyo
Foreign Exchange Market on March 31, 2013
Internet Explorer and ActiveX are either registered trademarks or trademarks
of Microsoft Corporation in the United States and/or other countries.
Mitsubishi Electric Corporation
Information Technology R&D Center
Katsunobu Muroi, +81-3-3218-2346
Public Relations Division
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