Title:
CREDIT MARK RANDOM DERMAL RIDGE GENERATING METHOD
Document Type and Number:
WIPO Patent Application WO/2009/036619
Kind Code:
A1
Abstract:
A credit mark random dermal ridge generating method is provided. The method comprises:
preparing an electronic file needing subscribing a credit mark pattern in a computer
system (111); regarding the content of the electronic file as a data resource;
calculating hash values by inputting a hash function (120); encrypting the hash
values by asymmetric secret key (namely public key encryption algorithm) (130)
so as to attain digital signature values (140); arranging and distributing the
digital signature values into a number pattern according to the geometry of the
credit mark pattern (160); overlaying the number pattern on the credit mark pattern;
regarding the overlaid part between the number strokes of the number pattern
and the graphics context of the credit mark as dermal ridge track so as to form the
credit mark random dermal ridge of the digital signature (170).
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Inventors:
WU JIANMING (CN)
Application Number:
PCT/CN2007/003395
Publication Date:
March 26, 2009
Filing Date:
November 30, 2007
Export Citation:
Assignee:
WU JIANMING (CN)
International Classes:
H04L9/32; G06T1/00; G06K5/00
Foreign References:
| CN1829149A | 2006-09-06 | |||
| CN1635533A | 2005-07-06 | |||
| CN2782387Y | 2006-05-24 | |||
| US20030196086A1 | 2003-10-16 |
Attorney, Agent or Firm:
INSIGHT INTELLECTUAL PROPERTY LIMITED (Tower A InDo BuildingNo. 48A Zhichun Road,Haidian District, Beijing 8, CN)
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