Method and apparatus for licensing computer programs using a DSA signature
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Jun 20, 2000
Grant Date -
N/A
app pub date -
Nov 19, 1997
filing date -
Nov 19, 1997
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A method and apparatus for using a Digital Signature Algorithm (DSA) for providing licensing of software. Three steps are required to allow setting up a license, issuing a license and for customer update of the license. An initialization step generates a public and private key pair. A license generation step follows the initialization step and involves feeding the private key and data for the license terms through the DSA to create a digital signature. The digital signature hash value is distributed to the customer as a valid license. The customer performs license verification by running the signature, public key and data for the license through the DSA on the customer's machine.
First Claim
Family
International Classification(s)
Cited Art Landscape
Patent Citation Ranking
Advertisement
Advertisement
Advertisement
Recipient Email Address
Recipient Email Address
Comment
Recipient Email Address
Add to Portfolio(s)
To add this patent to one, or more, of your portfolios, simply click the add button.
This Patent is in these Portfolios:
Add to additional portfolios:
Last Refreshed On:
Changes done successfully