Tamper resistant module certification authority
Number of patents in Portfolio can not be more than 2000
United States of America Patent
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Sep 1, 2009
Grant Date -
Nov 1, 2007
app pub date -
Feb 16, 2007
filing date -
Feb 21, 1997
priority date (Note) -
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status (Latency Note)
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Abstract
Methods and apparati for securely loading one or more computer software applications onto a tamper resistant module (TRM) (107) and for securely deleting one or more applications from the TRM. An embodiment of the invention comprises a method for determining, based at least upon an encrypted personalization data block, whether a TRM (107) is part of a qualified set of TRM's to accept loading of an application. Thereafter, the method provides for loading the application onto the TRM (107) only after the first step determines that the TRM (107) is qualified to accept the loading of the application. Another embodiment comprises a method for determining, based at least upon an encrypted personalization data block, whether a TRM (107) is part of a qualified set of TRM's to accept deleting of an application. Thereafter, the method provides for deleting the application from the TRM (107) only when the first step determines that the TRM (107) is qualified to accept the deleting of the application.
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