Data processing: financial – business practice – management – or co – Business processing using cryptography – Usage protection of distributed data files
Reexamination Certificate
2004-12-17
2010-10-05
Korzuch, William R (Department: 2431)
Data processing: financial, business practice, management, or co
Business processing using cryptography
Usage protection of distributed data files
C380S001000, C380S001000, C380S029000, C380S030000, C380S044000, C701S001000, C705S001100, C705S002000, C705S026640, C705S058000, C710S200000, C717S177000, C719S312000, C713S167000, C713S176000, C713S187000, C726S004000
Reexamination Certificate
active
07809648
ABSTRACT:
A software licensing system includes a license generator located at a licensing clearinghouse and at least one license server and multiple clients located at a company or entity. When a company wants a software license, it sends a purchase request (and appropriate fee) to the licensing clearinghouse. The license generator at the clearinghouse creates a license pack containing a set of one or more individual software licenses. The license generator digitally signs the license pack and encrypts it with the license server's public key. The license server is responsible for distributing the software licenses from the license pack to individual clients. When a client needs a license, the license server determines the client's operating system platform and grants the appropriate license. The license server digitally signs the software license and encrypts it using the client's public key. The license is stored locally at the client.
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Graziado Bradley J.
Misra Pradyumna K.
Spies Terence R.
Korzuch William R
Merchant & Gould P,C,
Microsoft Corporation
Wright Bryan
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