US 2001/0044902 A1Published application

Secure software system and related techniques

OwnerNir N. Shavitinventor

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Abstract

A secure software system includes a transformation processor for transforming an original program capable of being executed on a lessee site into a vendor server program, a first program intended to be executed at the lessee site which lacks some of the functionality of the original program and a second program. The first program provides some of the computation of the original program but is unable to provide all of the functionality of the Original Program and requires cooperation with the second program which corresponds to an excised portion of the original program to provide the functionality of original program. The excised program is executed or otherwise utilized by a vendor server program which, in one embodiment, is generated by the transformation processor. With this arrangement, the lessee obtains the total functionality of the original program without having access to the original program code and the excised program is selected such that it would be relatively difficult to recreate the total functionality of the original program.

Claims15

Dependent claims

A processing system for executing an original computer program with a first portion of the original computer program executing in a first processor located at a first processing site and a second portion of the original computer program executing in a second different processor located at a second different processing site wherein the first and second processing sites are physically separate and adapted to communicate over a network, the second processor at the second processing site comprising:

(a) a code extraction processor to receive the original computer program and to parse the original computer program to provide a first program for execution at the first processing site and an associated second program for execution at the second processing site, wherein said code extraction processor provides the second program such that the second program does not by itself constitute an executable computer program and wherein the second program includes portions of the original computer program selected to render it difficult to re-create the functionality of the original computer program from information stored at or otherwise available at the first processing site;
(b) a storage device having stored therein a server program which utilizes the second program and wherein in response to communications provided thereto by the first program executing at the first processing site, the server program provides information over the network to the first processing site which allows the first program executing at the first processing site to re-create the functionality of the original computer program at the first processing site;
and
(c) an execution processor to execute the server program and the second program at the second processing site.

1 more element

Dependencies are inferred from the claim text.