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Update BIP-32 section to make clear xpub exposure risks to attacker with CRQC#28

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xoloki wants to merge 2 commits intocryptoquick:p2qrhfrom
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Update BIP-32 section to make clear xpub exposure risks to attacker with CRQC#28
xoloki wants to merge 2 commits intocryptoquick:p2qrhfrom
xoloki:p2qrh

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@xoloki xoloki commented Aug 18, 2025

The existing BIP-32 section does not make it clear that an attacker with a CRQC can recover the xpriv from an xpub, and thereby expose all child keys. This PR updates that paragraph to make this conclusion explicit.

I also made a minor wording change in the "Satoshi's Shield" section.

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