Electrical computers and digital processing systems: support – Data processing protection using cryptography
Reexamination Certificate
2011-04-26
2011-04-26
Smithers, Matthew B (Department: 2437)
Electrical computers and digital processing systems: support
Data processing protection using cryptography
C713S176000, C713S187000, C726S026000
Reexamination Certificate
active
07934104
ABSTRACT:
Systems, methods and media for verifying the existence of a licensed software installation at the time of an update to the software are disclosed. In one embodiment, a package of files for the update is encrypted with a copy of a key file that is contained in the original installation. The encrypted package of files is stored at a remote location that is accessible by way of a website. When a user seeks to download an update, the user must provide a copy of the key file used to encrypt the data. The user-provided key file is then used to decrypt the encrypted package.
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Fields Courtney D
International Business Machines - Corporation
Schubert Law Group PLLC
Seal Cynthia G.
Smithers Matthew B
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