| 摘要 |
A method, apparatus, and article of manufacture limit unauthorized access to digital services. A hidden non-modifiable identification number is embedded into a nonvolatile memory component. The hidden number uniquely identifies a device containing the nonvolatile memory component and access to digital services is based on rights associated with the hidden number. Access to the nonvolatile memory is isolated such that access to the identification number is limited to a fixed state custom logic block. The custom logic block has hardware configured to use the hidden number and other information to provide an output that is a function of the hidden number and that can be used to confirm an identity of a device without revealing information that can be used to impersonate the device.
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