Description
To recover the PIN of my super-secure cryptocurrency wallet, which contains 0.00000001 BTC, I bought a top-tier oscilloscope for 10,000 euros. But I don’t really know what to do with all these traces. Maybe you could give me a hand?
I’ve acquire one trace for each possible PIN, but to avoid triggering a security mechanism and thus erasing the wallet, I turn off the power after a few microseconds after each attempt.
Note: The cryptobro.tar.xz archive contains files named trace_XXXX.npy, where XXXX corresponds to the PIN used to generate the trace.
Once you have recovered the PIN, wrap it between FCSC{} to get the flag.
For example, if the PIN were 1234, the flag would be FCSC{1234}.
Files
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cryptobro.tar.xz
571.82 KiB – 44486a301d309d467f86dad51772e55a492722552004cfb9176eefd8786c140f
Author
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