Method of software distribution protection
Number of patents in Portfolio can not be more than 2000
United States of America Patent
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-
Aug 9, 1994
Issued Date -
N/A
app pub date -
Jul 27, 1993
filing date -
Jun 17, 1993
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A method is provided for protecting distributed software which relies on a unique factor such as an accessible serial number or the generation of a profile or fingerprint of the computer of the user which is entered individually and/or with a random factor to generate a unique first key which will differ for different computers. The first key is sent to a processing center which then generates a second key. The user applies the second key which compares the unique and/or random factors. If the comparison matches, the first and second keys are used in an algorithm in the software to generate a decrypting key permitting the customer to purchase the selected program(s).
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