PURPOSE: To provide an improved method and device for managing the use of software in a computer system.
CONSTITUTION: Software is distributed with no execution qualification and can only be executed with a separately distributed enciphered qualified key 111. The key 111 contains the serial number 410 of a computer to which the license of the software is given and a plurality of qualifying bits indicating the software module qualified to be run on a machine. The distributed software contains a plurality of qualification verifying triggers. Each trigger is an object code type of single machine word instruction which discriminates the product number of a software module. Therefore, an improved method and device for managing the use of software in a computer system can be provided.
MAIKERU JIYOOZEFU KORIGAN
FURANSHISU JIYOOZEFU RIADON JI
JIEEMUZU UIRIAMU MORAN
| JPH0319026A | 1991-01-28 | |||
| JPH03266118A | 1991-11-27 | |||
| JPH0368024A | 1991-03-25 | |||
| JPS63298529A | 1988-12-06 | |||
| JPS61123935A | 1986-06-11 | |||
| JPS59133643A | 1984-08-01 |