Joseph A Hansen

US Patent:

8135954, Mar 13, 2012

Filed:

Dec 20, 2004

Appl. No.:

11/017259

Inventors:

Joel D. Voss - Elkhorn WI, US
Ronald F. Buskey - Loves Park IL, US
Joseph M. Hansen - Williams Bay WI, US
David H. Hartley - Seacombe Heights, AU
Michael J. Terrington - Highbury, AU

Assignee:

Motorola Mobility, Inc. - Libertyville IL

International Classification:

G06F 21/00

US Classification:

713175, 713156, 713182, 713183, 380 30, 380283, 380285, 380286

Abstract:

A server, e. g. , a client (), receives a request for a digital signature to be applied to digital information, obtains a representation of the information, determines a designation of key pair(s) to be applied thereto; and transmits a request for the digital signature to a front end server (). The front end server determines one or more of whether the client is authentic and authorized, the user identifier is authentic, and the user identifier is permitted to make the request. If so, the front end server transmits a request to generate a digital signature to a back end server (). The back end server determines one or more of whether the front end server is authentic and the designated key pair correspond to the requesting front end server. If so, the back end server generates the digital signature based on the information and the key pair(s).

US Patent:

20100169660, Jul 1, 2010

Filed:

Jun 26, 2009

Appl. No.:

12/492327

Inventors:

Joel Voss - Elkhorn WI, US
Joseph Hansen - Williams Bay WI, US
Kent Rager - Fort Wayne IN, US

Assignee:

Motorola, Inc. - Schaumburg IL

International Classification:

H04L 9/32
G06F 21/20

US Classification:

713183, 713182

Abstract:

A method, telecommunication apparatus, and electronic device for securely creating an identity data block are disclosed. A secure memory may store a unique private key associated with a unique public key A processor may generate the identity data block in the secure memory using the unique private key The processor may erase the unique private key from the secure memory