发明名称 |
Method of software distribution protection |
摘要 |
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). |
申请公布号 |
US5337357(A) |
申请公布日期 |
1994.08.09 |
申请号 |
US19930097705 |
申请日期 |
1993.07.27 |
申请人 |
SOFTWARE SECURITY, INC. |
发明人 |
CHOU, WAYNE W.;KULINETS, JOSEPH M.;ELTETO, LASZLO;ENGEL, FREDERIK |
分类号 |
G06F1/00;G06F12/14;G06F21/00;H04L9/08;H04Q3/00;(IPC1-7):H04L9/00 |
主分类号 |
G06F1/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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