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key: Add constructor for CExtKey that takes CExtPubKey and CKey

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We often need to construct a CExtKey given an CExtPubKey and CKey, so
implement a constructor that does that for us.
This commit is contained in:
Ava Chow 2023-12-20 18:11:41 -05:00
parent 45b2a91897
commit ef6745879d
1 changed files with 6 additions and 0 deletions
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6
src/key.h
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@ -223,6 +223,12 @@ struct CExtKey {
a.key == b.key;
}
CExtKey() = default;
CExtKey(const CExtPubKey& xpub, const CKey& key_in) : nDepth(xpub.nDepth), nChild(xpub.nChild), chaincode(xpub.chaincode), key(key_in)
{
std::copy(xpub.vchFingerprint, xpub.vchFingerprint + sizeof(xpub.vchFingerprint), vchFingerprint);
}
void Encode(unsigned char code[BIP32_EXTKEY_SIZE]) const;
void Decode(const unsigned char code[BIP32_EXTKEY_SIZE]);
[[nodiscard]] bool Derive(CExtKey& out, unsigned int nChild) const;