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I am currently working on a challenge that involves deriving a non-hardened extended private key for a specific search path in Bitcoin. The challenge provides the following information:
Bitcoin root extended public key (starting with xpub…)
Bitcoin non-hardened extended private key for the derivation path m/44/0/0/1/404 (starting with xprv…)
Search path for which I need to derive the associated (non-hardened) extended private key: m/44/0/0/0/402
The task is to derive the non-hardened extended private key for the given search path, and the submission should be encoded as per the BIP 32 specification.
I’ve attempted to use the pycoin and python-hdwallet libraries, but I’m facing difficulties understanding the process and obtaining the correct result. Could someone provide guidance or a step-by-step approach on how to achieve this using these libraries or any other relevant tools?
Additionally, if there are specific functions or methods within these libraries that are suitable for this task, please provide examples to help me grasp the implementation better.
I appreciate any assistance and clarification on this matter. Thank you!
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