Event management in distributed computing system
US-12155753-B2 · Nov 26, 2024 · US
Anonymous authentication signature system, user device, verification device, signature method, verification method, and program therefor
US8949609B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-8949609-B2 |
| Application number | US-201013383476-A |
| Country | US |
| Kind code | B2 |
| Filing date | Jul 6, 2010 |
| Priority date | Jul 13, 2009 |
| Publication date | Feb 3, 2015 |
| Grant date | Feb 3, 2015 |
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- Title
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Abstract
Official abstract text for this publication.
The user device includes: a recording unit which stores system parameters as respective parameters given in advance, a disclosure public key, a user public key, a user private key, a member certificate, and an attribute certificate; an input/output unit which receives input of the document from the user and an attribute the user intends to disclose; a cryptograph generating module which generates a cryptograph based on the inputted document, the attribute to be disclosed, and each of the parameters; a signature text generating module which generates a zero-knowledge signature text from the generated cryptograph; and a signature output module which outputs the cryptograph and the zero-knowledge signature text as the signature data. The user public key and the attribute certificate are generated by using a same power.
First claim
Opening claim text (preview).
The invention claimed is: 1. An anonymous authentication signature system constituted by mutually connecting a user device which generates and outputs signature data for a document inputted by a user and a verification device which verifies whether or not the signature data generated by the user device is proper and outputs a result thereof, wherein: the user device includes a first recording unit which stores first system parameters as respective first parameters given in advan…
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Classifications
- H04L9/3218Primary
Electricity · mapped topic
Electricity · mapped topic
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Frequently asked questions
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- What does patent US8949609B2 cover?
- The user device includes: a recording unit which stores system parameters as respective parameters given in advance, a disclosure public key, a user public key, a user private key, a member certificate, and an attribute certificate; an input/output unit which receives input of the document from the user and an attribute the user intends to disclose; a cryptograph generating module which generat…
- Who is the assignee on this patent?
- Teranishi Isamu, Nec Corp
- What technology area does this patent fall under?
- Primary CPC classification H04L9/3218. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Tue Feb 03 2015 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).