International Business Machines Corporation

Charles D Helfenberger

Richard Victor Kisley

Todd Weston Arnold

Elizabeth A Dames

Jimmie Ray Mayfield

Dennis R Hedrick

Allan E Ellis

Andrew French

Shepard D Johnson

A method, computer program product, and system for selecting and generating a key to perform a cryptographic operation are described. The method includes receiving one or more inputs representing criteria for the key, the one or more inputs excluding an explicit identification of the key and one of the one or more inputs specifying the cryptographic operation; retrieving, from a memory device, information corresponding with the one or more inputs; selecting and generating the key based on the one or more inputs and the information; and performing the cryptographic operation using the key.

Intelligent key selection and generation

A printer includes a print mechanism defining a print region and a removable ink ribbon cartridge. The cartridge includes a body and two arms which are spaced apart and pivotally attached to the body with an ink ribbon across the gap between the ends of the arms in the print region. The printer includes an arm moving mechanism for moving the arms about their pivots on the body of the cartridge so that the portion of the ribbon in the print region can be moved laterally. One of the arms is formed with a first indicator which cooperates with a sensing system on the printer to indicate the lateral position of the ribbon in the print region. The sensing system can also determine whether the cartridge is installed correctly in the printer. A second indicator is located on the arm and the sensing system can detect the position of this second indicator to indicate the type of ribbon in the cartridge.

Ink ribbon cartridge indication system for printer

Growing community of inventors

Charlotte, NC, United States of America

Charles D Helfenberger