The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 15, 2006
Filed:
Dec. 20, 2001
Dale W. Hopkins, Georgetown, KY (US);
Thomas W. Collins, Saratoga, CA (US);
Steven W. Wierenga, Sunnyvale, CA (US);
Dale W. Hopkins, Georgetown, KY (US);
Thomas W. Collins, Saratoga, CA (US);
Steven W. Wierenga, Sunnyvale, CA (US);
Hewlett-Packard Development Company, L.P., Houston, TX (US);
Abstract
A method is provided for generating a group digital signature wherein each of a group of individuals may sign a message M to create a group digital signature S, wherein M corresponds to a number representative of a message, 0≦M≦n−1, n is a composite number formed from the product of a number k of distinct random prime factors p·p· . . . ·p, k is an integer greater than 2, and S≡M(mod n). The method may include: performing a first partial digital signature subtask on a message M using a first individual private key to produce a first partial digital signature S; performing at least a second partial digital signature subtask on the message M using a second individual private key to produce a second partial digital signature S; and combining the partial digital signature results to produce a group digital signature S.