Title:
電子押印システム
Document Type and Number:
Japanese Patent JP4465516
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide an electronic seal system which prevents a sealing request source from doing illegal operation and disables an object document to be sealed to be substituted when sealing is requested. SOLUTION: This electronic seal system is equipped with a sealing request part which requests sealing such as an electronic signature for electronic data, a data storage part which stores the electronic data as an object to be sealed, and an electronic seal part which gives a seal to the electronic data; and the sealing request part is equipped with an identifier output part which outputs an identifier for specifying the sealed object, the electronic seal part is equipped with a request acceptance part which receives a sealing request from the sealing request part and specifies specific data according to the identifier included in the sealing request, a readout control part which requests data from the data storage part according to an indication from the request acceptance part and receives a data response from the data storage part, and a ciphering part which generates an electronic seal with the received electronic data, and the ciphering part sends the electronic seal back to the sealing request part.
Inventors:
Hiroshi Ichise
Application Number:
JP2000380958A
Publication Date:
May 19, 2010
Filing Date:
December 14, 2000
Export Citation:
Assignee:
Nets S Toyo Co., Ltd.
International Classes:
H04L9/32; G06F19/00; G06Q10/10; G09C1/00
Domestic Patent References:
| JP10032570A | ||||
| JP9270784A | ||||
| JP2000339417A | ||||
| JP2001282105A | ||||
| JP11088321A | ||||
| JP11175512A |