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Title:
HYBRID FULLY HOMOMORPHIC ENCRYPTION (F.H.E.) SYSTEMS
Document Type and Number:
WIPO Patent Application WO/2016/141860
Kind Code:
A1
Abstract:
Using a secure hardware or other form secure elements, where we securely implement the decryption and then encryption function to perform the re-encryption function, we build a hybrid fully homomorphic encryption system, where the bootstrap step is replaced the re-encryption function in the hardware module. This new hybrid system are very efficient because the re-encryption is much more efficient than the bootstrap function, which is the main bottleneck in terms of computations in FHE. In such a system, we make the system secure by making this hardware module secure using all or some of known techniques in-cluding temper proof, self-destruction and etc. This module can be controlled by either the server or the client or jointly.

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Inventors:
DING JINTAI (CN)
Application Number:
PCT/CN2016/075668
Publication Date:
September 15, 2016
Filing Date:
March 04, 2016
Export Citation:
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Assignee:
DING JINTAI (CN)
International Classes:
H04L29/08; H04L9/32
Domestic Patent References:
WO2012149395A12012-11-01
Foreign References:
CN104426973A2015-03-18
US8515058B12013-08-20
US20140095860A12014-04-03
CN104283669A2015-01-14
Other References:
SMART, NIGEL P. ET AL.: "Fully Homomorphic Encryption with Relatively Small Key and Ciphertext Sizes", PUBLIC KEY CRYPTOGRAPHY - PKC 2010, LECTURE NOTES IN COMPUTER SCIENCE, vol. 6056, 31 December 2010 (2010-12-31), pages 420 - 443, XP047269492
PORRAS, JAIBERTH ET AL.: "ZHFE, a New Multivariate Public Key Encryption Scheme", POST-QUANTUM CRYPTOGRAPHY, PQCRYPTO 2014, LECTURE NOTES IN COMPUTER SCIENCE, vol. 8772, 31 December 2014 (2014-12-31), pages 229 - 245, XP047300017
Attorney, Agent or Firm:
BEYOND TALENT PATENT AGENT FIRM (Kuntai Building#10 Chaoyangmenwai Str., Chaoyang District, Beijing 0, CN)
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