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Foundations and Applications of Functional Cryptography

Total Cost €


EC-Contrib. €






Project "FAFC" data sheet

The following table provides information about the project.


Organization address
postcode: 91904

contact info
title: n.a.
name: n.a.
surname: n.a.
function: n.a.
email: n.a.
telephone: n.a.
fax: n.a.

 Coordinator Country Israel [IL]
 Total cost 1˙307˙188 €
 EC max contribution 1˙307˙188 € (100%)
 Programme 1. H2020-EU.1.1. (EXCELLENT SCIENCE - European Research Council (ERC))
 Code Call ERC-2016-STG
 Funding Scheme ERC-STG
 Starting year 2017
 Duration (year-month-day) from 2017-02-01   to  2022-01-31


Take a look of project's partnership.

# participants  country  role  EC contrib. [€] 


 Project objective

'Modern cryptography has successfully followed an 'all-or-nothing' design paradigm over the years. For example, the most fundamental task of data encryption requires that encrypted data be fully recoverable using the encryption key, but be completely useless without it. Nowadays, however, this paradigm is insufficient for a wide variety of evolving applications, and a more subtle approach is urgently needed. This has recently motivated the cryptography community to put forward a vision of 'functional cryptography': Designing cryptographic primitives that allow fine-grained access to sensitive data.

This proposal aims at making substantial progress towards realizing the premise of functional cryptography. By tackling challenging key problems in both the foundations and the applications of functional cryptography, I plan to direct the majority of our effort towards addressing the following three fundamental objectives, which span a broad and interdisciplinary flavor of research directions: (1) Obtain a better understanding of functional cryptography's building blocks, (2) develop functional cryptographic tools and schemes based on well-studied assumptions, and (3) increase the usability of functional cryptographic systems via algorithmic techniques.

Realizing the premise of functional cryptography is of utmost importance not only to the development of modern cryptography, but in fact to our entire technological development, where fine-grained access to sensitive data plays an instrumental role. Moreover, our objectives are tightly related to two of the most fundamental open problems in cryptography: Basing cryptography on widely-believed worst-case complexity assumptions, and basing public-key cryptography on private-key primitives. I strongly believe that meaningful progress towards achieving our objectives will shed new light on these key problems, and thus have a significant impact on our understanding of modern cryptography.'


year authors and title journal last update
List of publications.
2018 Zvika Brakerski, Alex Lombardi, Gil Segev, Vinod Vaikuntanathan
Anonymous IBE, Leakage Resilience and Circular Security from New Assumptions
published pages: 535-564, ISSN: , DOI: 10.1007/978-3-319-78381-9_20
Advances in Cryptology -- EUROCRYPT 2018 2019-05-14
2018 Elette Boyle, Saleet Klein, Alon Rosen, Gil Segev
Securing Abe\'s Mix-Net Against Malicious Verifiers via Witness Indistinguishability
published pages: 274-291, ISSN: , DOI: 10.1007/978-3-319-98113-0_15
Security and Cryptography for Networks - 11th International Conference, SCN 2018 2019-05-14
2018 Gilad Asharov, Gil Segev, Ido Shahaf
Tight Tradeoffs in Searchable Symmetric Encryption
published pages: 407-436, ISSN: , DOI: 10.1007/978-3-319-96884-1_14
Advances in Cryptology -- CRYPTO 2018 2019-05-14
2017 Alon Rosen, Gil Segev, Ido Shahaf
Can PPAD Hardness be Based on Standard Cryptographic Assumptions?
published pages: 747-776, ISSN: , DOI: 10.1007/978-3-319-70503-3_25
Theory of Cryptography Conference (TCC 2017) 2019-05-14
2018 Gilad Asharov, Gil Segev
On Constructing One-Way Permutations from Indistinguishability Obfuscation
published pages: 698-736, ISSN: 0933-2790, DOI: 10.1007/s00145-017-9268-6
Journal of Cryptology 31/3 2019-05-14
2017 Gilad Asharov, Daniel Demmler, Michael Schapira, Thomas Schneider, Gil Segev, Scott Shenker, Michael Zohner
Privacy-Preserving Interdomain Routing at Internet Scale
published pages: 147-167, ISSN: 2299-0984, DOI: 10.1515/popets-2017-0033
Proceedings on Privacy Enhancing Technologies 2017/3 2019-05-14
2017 Ilya Mironov, Gil Segev, Ido Shahaf
Strengthening the Security of Encrypted Databases: Non-Transitive JOINs
published pages: 631-661, ISSN: , DOI: 10.1007/978-3-319-70503-3_21
Theory of Cryptography Conference (TCC 2017) 2019-05-14
2018 Lior Rotem, Gil Segev
Out-of-Band Authentication in Group Messaging: Computational, Statistical, Optimal
published pages: 63-89, ISSN: , DOI: 10.1007/978-3-319-96884-1_3
Advances in Cryptology – CRYPTO 2018 2019-05-14
2017 Ilan Komargodski, Gil Segev
From Minicrypt to Obfustopia via Private-Key Functional Encryption
published pages: 122-151, ISSN: , DOI: 10.1007/978-3-319-56620-7_5
Advances in Cryptology - EUROCRYPT 2017 2019-05-14
2018 Ananth Raghunathan, Gil Segev, Salil Vadhan
Deterministic Public-Key Encryption for Adaptively-Chosen Plaintext Distributions
published pages: 1012-1063, ISSN: 0933-2790, DOI: 10.1007/s00145-018-9287-y
Journal of Cryptology 31/4 2019-05-14
2018 Zvika Brakerski, Gil Segev
Function-Private Functional Encryption in the Private-Key Setting
published pages: 202-225, ISSN: 0933-2790, DOI: 10.1007/s00145-017-9255-y
Journal of Cryptology 31/1 2019-05-14
2018 Zvika Brakerski, Ilan Komargodski, Gil Segev
Multi-input Functional Encryption in the Private-Key Setting: Stronger Security from Weaker Assumptions
published pages: 434-520, ISSN: 0933-2790, DOI: 10.1007/s00145-017-9261-0
Journal of Cryptology 31/2 2019-05-14

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