Atallah one of 29 Purdue innovators recently issued US patent - Department of Computer Science - Purdue University Skip to main content

Atallah one of 29 Purdue innovators recently issued US patent


Distinguished Professor Mikhail Atallah

Distinguished Professor Mikhail Atallah


Congratulations to Distinguished Professor Mikhail Atallah and all Purdue University researchers across all campuses and academic disciplines. They have recently received 29 patents on their intellectual property from the U.S. Patent and Trademark Office.


Mikhail Atallah, College of Science

"Computing without Revealing: Order Statistics," #11,552,783



Collaboration of industry projects often occurs through an online platform. There has been a burst in online shared drives between Microsoft, Google, and Dropbox, however, with this explosion of sharing mediums, there is a greater threat to online security. Collaborators might be connected to future competitors and often the practice of sharing data is rudimentary. These risks mean the communication of sensitive material from the distrusting could be redacted without the collaborators' knowledge. On the other end of the spectrum, superfluous information could be exchanged, making it difficult to recover the necessary data.

Researchers from Purdue University have developed a method of sharing data between online collaborators so that only one individual is in charge of their portion of the project without having to share that knowledge. In this manner, the individual has total control over his or her information which is specific to their task. Through the use of client-server architecture, collaborators are clients who communicate from that role so that their data is secure. This will allow greater security when exchanging information through online shared drives.

-Sharing Methodology
-Online Security

Potential Applications:
-Wireless Communication
-Intranet Safety
-Web Design



  • Atallah, Mikhail J (Project leader)
  • Chaduvula, Siva Chaitanya
  • Dachowicz, Adam
  • Panchal, Jitesh H
  • Rahman, Mohammad S.


Atallah's research interests are in information security and algorithms. A Fellow of both the ACM and IEEE, his work on key management received the 2015 CCS Test of Time Award, and his work on multi-party computation received the 2021 ACSAC Test of Time Award. He was the 2017 recipient of the Arden L. Bement Jr. Award, the most prestigious award Purdue bestows in pure and applied science and engineering. He was the 2016 recipient of the Purdue Sigma Xi Faculty Research Award, and the 2013 recipient of the Purdue Outstanding Commercialization Award. He was a speaker nine times in the Distinguished Lecture Series of top Computer Science Departments, and was keynote and invited speaker at many national and international meetings, and has served on the editorial boards of top journals and on the program committees of top conferences and workshops. He was selected in 1999 as one of the best teachers in the history of Purdue University and included in Purdue's Book of Great Teachers, a permanent wall display of Purdue's best teachers past and present. In 2001 he co-founded Arxan Technologies Inc, to commercialize a software protection technology developed jointly with his doctoral student Hoi Chang (in 2019 Arxan reported that applications secured by it were running on over a billion devices, and in 2020 it reported 5+ billion deployed instances on protected applications "across many industries including financial services, mobile payments, healthcare, automotive, gaming, and entertainment"). He was CTO of Arxan Technologies and Chief Scientist for its defense subsidiary, Arxan Defense Systems. Arxan Defense Systems was acquired in 2010 by Microsemi Corporation, and Arxan Technologies was acquired in 2013 by private equity firm TA Associates.


Link to all primary investigators whose work was recently patented. Also included are their college and the issued patent number. The majority of these are available to license. Visit the Purdue Research Foundation Office of Technology Commercialization’s web site to learn more about these and other available technologies.


About the Department of Computer Science at Purdue University

Founded in 1962, the Department of Computer Science was created to be an innovative base of knowledge in the emerging field of computing as the first degree-awarding program in the United States. The department continues to advance the computer science industry through research. US News & Reports ranks Purdue CS #20 and #16 overall in graduate and undergraduate programs respectively, seventh in cybersecurity, 10th in software engineering, 13th in programming languages, data analytics, and computer systems, and 19th in artificial intelligence. Graduates of the program are able to solve complex and challenging problems in many fields. Our consistent success in an ever-changing landscape is reflected in the record undergraduate enrollment, increased faculty hiring, innovative research projects, and the creation of new academic programs. The increasing centrality of computer science in academic disciplines and society, and new research activities - centered around data science, artificial intelligence, programming languages, theoretical computer science, machine learning, and cybersecurity - are the future focus of the department.


Last Updated: Nov 2, 2023 8:34 AM

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