Title:
IMPROVEMENTS ON MULTIVARIATE DIGITAL SIGNATURE SCHEMES BASED ON HFEV- AND NEW APPLICATIONS OF MULTIVARIATE DIGITAL SIGNATURE SCHEMES FOR WHITE-BOX ENCRYPTION
Document Type and Number:
WIPO Patent Application WO/2016/155565
Kind Code:
A1
Abstract:
We present new designs to choose the parameter sets for more efficient HFEv-based signature schemes. The key method is to reduce the degree of the central HFEv-polynomial while, at the same time, increasing the number of Vinegar variables and Minus equations. The new design speeds up the signature generation process by two orders of magnitude (hundreds of times) compared to QUARTZ. We present also new methods to use multivariate signature schemes to build a white box encryption scheme. This technique is applicable to all existing multivariate signature designs including the HFEV-design and the improvements.
Inventors:
DING JINTAI (CN)
Application Number:
PCT/CN2016/077293
Publication Date:
October 06, 2016
Filing Date:
March 25, 2016
Export Citation:
Assignee:
DING JINTAI (CN)
International Classes:
H04L9/32
Foreign References:
| CN102006168A | 2011-04-06 | |||
| US20140380062A1 | 2014-12-25 |
Other References:
JINTAI DING ET AL.: "Gui:Revisitiong Multivariate Digtal Signature Schemes based on HFEv", 9 April 2015 (2015-04-09), pages 2 - 30, Retrieved from the Internet
Attorney, Agent or Firm:
BEYOND TALENT PATENT AGENT FIRM (Kuntai Building#10 Chaoyangmenwai Str., Chaoyang District, Beijing 0, CN)
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