System for licensing to use software products

• US 5,636,277 A
• Filed: 09/28/1995
• Issued: 06/03/1997
• Est. Priority Date: 09/30/1994
• Status: Expired due to Term

• Current Assignee: Fujitsu Limited
• Original Assignee: Fujitsu Limited
• Inventors: Nagahama, Eiichi
• Primary Examiner(s): Cain, David C.
• Application Number:
  US08/535,615
• Time in Patent Office: 614 Days
• Field of Search: 380/3, 380/4, 380/23, 380/24, 380/25, 380/49, 380/46, 380/21
• US Class Current: 705/59
• CPC Class Codes: G06F 21/10 Protecting distributed programs or content, e.g. vending or licensing of copyrighted material protection in video systems or pay television H04N7/16 ; Digital rights management [DRM]
• CPC Class Codes: G06F 2211/007 Encryption, En-/decode, En-/decipher, En-/decypher, Scramble, (De-)compress
• CPC Class Codes: G06Q 30/04 Billing or invoicing

Abstract

A system for licensing to use software products which are encrypted and packed in a single storage medium, whereby the encrypted software products can be sold on a piece-by-piece basis and it is possible to perform accounting operations and collection of sales records with accuracy in a stepwise manner for each shop related thereto. A plurality of software products are encrypted and stored in a product-medium and delivered to an end-user. At the same time, sales-medium creating means creates a sales-medium which contains product information and shop information and distributes it to wholesalers and then to retailers. Upon reception of an order and its payment from the end-user, key generating means extracts keys from the sales-medium and provides the end-user with the keys or complex keys derived therefrom, thereby allowing the end-user to decrypt the software products and make them executable. Accounting means updates the sales records by each sales transaction, and calculates the sales track records at every month-end based on the sales-media in the retailers and wholesalers in a stepwise manner.

Claims

1. A system for licensing to use software products which are encrypted by a software vendor, the system comprising:

a first supplier unit for supplying a product-medium which contains a plurality of encrypted software products and a sales-medium, said first supplier comprising

information storage means for storing key information and

sales-medium creating means for creating the sales-medium which contains the key information stored in said information storage means; and

a second supplier unit, being provided with the sales-medium from said first supplier unit, for supplying a key to decrypt one of the encrypted software products, said second supplier unit comprising

key generating means for generating the key based on the key information which is supplied in the sales-medium.

2. A system according to claim 1, wherein said first supplier unit further comprises first accounting means for calculating total sales track records of the encrypted software products according to product sales records provided by said second supplier unit, and said second supplier unit further comprises second accounting means for calculating the product sales records of the encrypted software products whose keys have been generated in said second supplier unit.

3. A system for licensing to use software products which are encrypted by a software vendor, the system comprising:

a software vendor unit for supplying a product-medium which contains a plurality of encrypted software products and for supplying a wholesaler'"'"'s sales-medium, said software vendor unit comprising

vendor information storage means for storing product information and wholesaler'"'"'s name and

wholesaler'"'"'s sales-medium creating means for creating the wholesaler'"'"'s sales-medium based on the product information and the wholesaler'"'"'s name stored in said information storage means;

a wholesaler unit for supplying a retailer'"'"'s sales-medium which contains the product information and retailer'"'"'s name, based on the wholesaler'"'"'s sales-medium provided by said software vendor unit;

a retailer unit, being provided with the retailer'"'"'s sales-medium from said wholesaler unit, for supplying an end-user with a key to decrypt one of the encrypted software products, said retailer unit comprising

key generating means for generating the key based on the product information stored in the retailer'"'"'s sales-medium.

4. A system according to claim 3, wherein said retailer unit further comprises retailer accounting means for calculating retailer'"'"'s sales track records of the encrypted software products whose keys have been generated in said retailer unit.

5. A system according to claim 4, wherein said wholesaler unit further comprises wholesaler accounting means for calculating wholesaler'"'"'s sales track records according to the retailer'"'"'s sales track records provided from said retailer unit.

6. A system according to claim 5, wherein said software vendor unit further comprises vendor accounting means for calculating total sales track records according to the wholesaler'"'"'s sales track records provided from said wholesaler unit.

7. A system according to claim 3, wherein said product information includes

key information which provides a decryption key for each of the encrypted software products stored in the product-medium and

sales record to be used for recording how many times the key for each of the encrypted software products has been generated.

8. A system according to claim 3, wherein said key is a complex key which is composed of a decryption key for decrypting one of the encrypted software products and a key qualifier for qualifying the end-user to use the decryption key, and said key generating means requires an input of the key qualifier in prior to generating the complex key.

9. A system according to claim 8, wherein said key qualifier is a product identifier which identifies one of the encrypted software products.

10. A system according to claim 8, wherein said key qualifier is a medium identifier that identifies the product-medium.

11. A system according to claim 8, wherein said key qualifier is a user-unit identifier that identifies a user'"'"'s unit on which the software products will run after decryption.

12. A system according to claim 8, wherein said key qualifier is a system-user identifier that identifies a user of the system.

13. A method of licensing to use software products which are encrypted by a software vendor and finally supplied to an end-user via a wholesaler and a retailer, the method comprising the steps of:

(a) supplying the end-user with a product-medium which contains a plurality of software products being encrypted;

(b) creating a wholesaler'"'"'s sales-medium based on the product information and wholesaler'"'"'s name;

(c) supplying the wholesaler'"'"'s sales-medium to the wholesaler;

(d) creating a retailer'"'"'s sales-medium which contains the product information and retailer'"'"'s name, based on the wholesaler'"'"'s sales-medium;

(e) supplying the retailer'"'"'s sales-medium to the retailer; and

(f) generating a key for the end-user to decrypt one of the encrypted software products based on the product information stored in the retailer'"'"'s sales-medium.

14. A method according to claim 13, wherein said step (f) further counts transactions of generating the key for each of the software products, the method further comprising the steps of:

(g) calculating retailer'"'"'s sales track records based on counts of the transactions counted in said step (f);

(h) calculating wholesaler'"'"'s sales track records of the software products according to the retailer'"'"'s sales track records obtained in said step (g); and

(i) calculating total sales track records of the software products according to the wholesaler'"'"'s sales track records obtained in said step (h).

15. A method according to claim 13, wherein said step (f) comprises the substeps of:

(f1) extracting a decryption key from the product information stored in the retailer'"'"'s sales-medium;

(f2) receiving an input of a key qualifier for qualifying the end-user to use the decryption key;

(f3) composing the decryption key and the key qualifier; and

(f4) outputting the key composed in said substep (f3).