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Abstract

A technique for enabling nominal flow of an executable file on a client. The executable file includes executable code lacking at least one nominal constant, wherein only the nominal constant enables the nominal flow of the executable file and wherein a server has access to the at least one nominal constant. In a method aspect performed by the client, the method includes retrieving hardware information of the client, wherein the hardware information is at least substantially unique, transmitting one of the hardware information and information derived therefrom to a server and, in turn, receiving at least one constant that has been transformed based on one of the hardware information and the information derived therefrom. The client then performs, using one of the hardware information and the information derived therefrom, an inverse transformation on the at least one transformed constant to recover the nominal constant. A server-side method aspect includes receiving, from the client, one of the substantially unique hardware information and the information derived therefrom, transforming the at least one nominal constant using one of the hardware information and the information derived therefrom, and transmitting, to the client, the at least one transformed constant.

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First Claim