Abstract
A secure self-bilinear map is attractive since it can be naturally extended to a secure multi-linear map which has versatile applications in cryptography. However, it was known that a self-bilinear map on a cyclic group of a known order cannot be cryptographically secure. In 2014, Yamakawa et al. presented a self-bilinear map, the YYHK pairing, on unknown order groups by using an indistinguishability obfuscator as a building block. In this paper, we prove that the Pairing Inversion (PI) of the YYHK pairing is equivalently hard to the factorization of RSA modulus N as long as iO in the scheme is an indistinguishability obfuscator. First, we prove that the General Pairing Inversion (GPI) of the YYHK pairing e: G×G → G is always solvable. By using the solvability of GPI, we prove that PI and BDHP for the YYHK-pairing e are equivalently hard to CDHP in the cyclic group G. This equivalence concludes that PI for the YYHK-pairing is equivalently hard to the factorization of N.
Original language | English |
---|---|
Title of host publication | Cyber Security Cryptography and Machine Learning - 1st International Conference, CSCML 2017, Proceedings |
Editors | Shlomi Dolev, Sachin Lodha |
Publisher | Springer Verlag |
Pages | 86-95 |
Number of pages | 10 |
ISBN (Print) | 9783319600796 |
DOIs | |
State | Published - 2017 |
Event | 1st International Conference on Cyber Security Cryptography and Machine Learning, CSCML 2017 - Beer-Sheva, Israel Duration: 29 Jun 2017 → 30 Jun 2017 |
Publication series
Name | Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics) |
---|---|
Volume | 10332 LNCS |
ISSN (Print) | 0302-9743 |
ISSN (Electronic) | 1611-3349 |
Conference
Conference | 1st International Conference on Cyber Security Cryptography and Machine Learning, CSCML 2017 |
---|---|
Country/Territory | Israel |
City | Beer-Sheva |
Period | 29/06/17 → 30/06/17 |
Bibliographical note
Funding Information:We thank the anonymous reviewers for useful comments. Hyang-Sook Lee was supported by Basic Science Research Programs through the National Research Foundation of Korea (NRF) funded by the Ministry of Science, ICT and Future Planning (Grant Number: 2015R1A2A1A15054564). Seongan Lim was also supported by Basic Science Research Programs through the NRF (Grant Number: 2016R1D1A1B01008562).
Publisher Copyright:
© Springer International Publishing AG 2017.
Keywords
- General Pairing Inversion
- Pairing Inversion
- Self-bilinear map