| 摘要 |
An integrated circuit including a digital key provider comprising an output and an enable-input, wherein the digital key provider is configured to provide the digital key at the output only when an enable-signal is provided to the enable-input; and a fuse unit comprising a first fuse and a second fuse, wherein the fuse unit is configured to provide the enable-signal to the enable-input when the first fuse is broken while the second fuse is intact.
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