Title:
SYSTEM AND METHOD FOR INFORMATION PROTECTION
Document Type and Number:
WIPO Patent Application WO/2019/072278
Kind Code:
A3
Abstract:
A computer-implemented method comprises: committing a transaction amount t of a transaction with a commitment scheme to obtain a transaction commitment value T, the commitment scheme comprising at least a transaction blinding factor r_t; encrypting a combination of the transaction blinding factor r_t and the transaction amount t with a second public key PK_2_B of a recipient of the transaction, wherein: the recipient is further associated with a first public key PK_1_B as an address for receiving the transaction amount t; and transmitting the transaction commitment value T and the encrypted combination to a recipient node associated with the recipient for the recipient node to verify the transaction.
Inventors:
MA BAOLI (CN)
ZHANG WENBIN (CN)
ZHANG WENBIN (CN)
Application Number:
PCT/CN2018/117560
Publication Date:
September 19, 2019
Filing Date:
November 27, 2018
Export Citation:
Assignee:
ALIBABA GROUP HOLDING LTD (CN)
International Classes:
G06Q20/10; H04L9/08
Domestic Patent References:
| WO2001080479A1 | 2001-10-25 |
Foreign References:
| CN108764874A | 2018-11-06 | |||
| US20160358165A1 | 2016-12-08 | |||
| US20180167208A1 | 2018-06-14 | |||
| US20120278609A1 | 2012-11-01 |
Other References:
See also references of EP 3549082A4
Attorney, Agent or Firm:
BEIJING BESTIPR INTELLECTUAL PROPERTY LAW CORPORATION (CN)
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