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obfuscated circuit and the original circuit agree on all inputs (except for a negligible probability over the coin tosses of the obfuscator). As a step towards our results, which is of independent interest, we also obtain an approximate-to-exact transformation for functional encryption. At the core of our techniques is a method for ``fooling\'\' the obfuscator into giving us the correct answer, while preserving the indistinguishability-based security. This is achieved based on various types of secure computation protocols that can be obtained from different standard assumptions.
Put together with the recent results of Canetti, Kalai and Paneth (TCC 2015), Pass and Shelat (Eprint 2015), and Mahmoody, Mohammed and Nemathaji (Eprint 2015), we show how to convert indistinguishability obfuscation schemes in various ideal models into exact obfuscation schemes in the plain model.
The vacancy is within the newly established research training group \"Privacy and Trust for Mobile Users\", funded by DFG, the German Research Foundation.
We are looking for a candidate interested in working at the intersection of privacy engineering, identity management, applied cryptography, and machine learning, starting October 01, 2015.
More Information: https://www.sit.informatik.tu-darmstadt.de/de/security-in-information-technology/open-positions/phd-position-on-consent-management/
Direct job posting: http://www.ait.ac.at/fileadmin/inserate/Scientist_for_Cryptography.pdf
Project site (avail. soon): https://www.credential.eu
AIT Digital Safety & Security Department: http://www.ait.ac.at/departments/digital-safety-security
- Concurrent Program Security (detailed position announcement at http://www.mais.informatik.tu-darmstadt.de/assets/misc/2015-PostDoc-IFS-Concurrent.pdf)
- Information-Flow Security by Design (detailed position announcement at http://www.mais.informatik.tu-darmstadt.de/assets/misc/2015-PostDoc-IFS-SecurityEngineering.pdf)
The detailed announcements contain information about the position descriptions, benefits, qualifications, and the application procedure.
The positions are available from September 1st 2015, but a later start is also possible. We will consider applications until the positions are filled.
Questions about the positions can be sent to recruiting (at) mais.informatik.tu-darmstadt.de. For more information about the chair MAIS, please visit http://www.mais.informatik.tu-darmstadt.de.