Secure Search of Encrypted Cloud Data

  • Yeda
  • From Israel
  • Responsive
  • Patents for licensing

Summary of the technology

Searchable symmetric encryption with practical big-data performance and strong security



Outsourcing data storage to remote servers offers invaluable benefits while introducing many concerns when dealing with sensitive data. In the presence of potentially-vulnerable servers, strong user-side encryption preserves the confidentiality of the data but renders essential operations (such as keyword search) extremely expensive and sometimes even unfeasible. To overcome this problem, the cryptography and security community has developed various searchable symmetric encryption (SSE) methods that enable searching through encrypted data without revealing any unnecessary information.

However, despite the rapidly increasing commercial interest in SSE technology, it has been shown that the performance of the existing methods scales badly to big data, not due to their usage of expressive cryptographic tools, but rather due to their poor data locality. Practical big-data performance and strong security are the two most essential ingredients for unleashing the potential of SSE technology, but have so far emerged as two extremely conflicting goals.

Our Innovation

The first searchable symmetric encryption (SSE) method that offers practical big-data performance while guaranteeing strong security. The method can be based on any off-the-shelf block cipher and enjoys essentially optimal space and communication overheads together with near-optimal data locality.

Key Features

· A breakthrough combination of cryptographic and algorithmic techniques

· Significant improvements over previous SSE systems in both security and performance

· Practical big-data performance

· Strong and precise security guarantees

· Low-cost implementation is given any off-the-shelf block cipher

Development Milestones

Research complete and technology ready for commercialization

The Opportunity

Market research firm ‘Markets and Markets projects that the global Cloud security market will grow from $4.20 billion in 2014 to $8.71 billion in 2019, representing an estimated compound annual growth rate (CAGR) of 15.7% from 2014 to 2019.

Intellectual property status

  • Granted Patent
  • Patent application number :USA Granted: 10,331,913

Related Keywords

  • Electronics, IT and Telecomms
  • Cloud Technologies
  • Telecommunications, Networking
  • Network Technology, Network Security
  • Cyber Security
  • Big data management

About Yeda

Yeda ("Knowledge" in Hebrew) Research and Development Company Ltd. is the commercial arm of the Weizmann Institute of Science (WIS) and is the second company of its kind established in the world.

WIS is one of the world’s leading multidisciplinary basic research institutions in the natural and exact sciences. It is located in Rehovot, Israel, just south of Tel Aviv. It was initially established as the Daniel Sieff Institute in 1934, by Israel and Rebecca Sieff of London in memory of their son Daniel. In 1949, it was renamed for Dr. Chaim Weizmann, the first President of the State of Israel and Founder of the Institute.

Yeda initiates and promotes the transfer to the global marketplace of research findings and innovative technologies developed by WIS scientists. Yeda holds an exclusive agreement with WIS to market and commercialize its intellectual property and generate income to support further research and education.

Since 1959 Yeda has generated the highest income per researcher compared to any other TTO worldwide. Weizmann has generated a number of groundbreaking therapies, such as Copaxone, Rebif, Tookad, Erbitux, Vectibix, Protrazza, Humira, and recently the CAR-T cancer therapy Yescarta.

Yeda performs the following activities:

◣ Identifies and assesses research projects with commercial potential.
◣ Protects the intellectual property of WIS and its scientists.
◣ Licenses WIS' inventions and technologies to industry.
◣ Establishes new Startup companies based in WIS Intellectual Property
◣ Channels funding from industry to research projects.

Our portfolio covers a broad spectrum of the natural sciences, including:

◣ Agriculture and Plant Genetics, including Bio-fuels
◣ Chemistry and Nanotechnology
◣ Environmental Sciences and Solar Energy
◣ Mathematics and Computer Science
◣ Medical Devices
◣ Pharmaceuticals and Diagnostics
◣ Physics and Electro-Optics
◣ Research Tools


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