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how does bitcoin core generate addresses and where can they be found in the data directory?

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  • To generate addresses or to save the ones generated? Maybe you are talking about the wallet file itself.
    – Osias Jota
    Commented Mar 22, 2018 at 10:52

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Bitcoin addresses can be created anywhere with any programming language. they're just like the result of 1 + 1 = 2.

if you are looking for the function they're using for getting a new address here you go: https://github.com/bitcoin/bitcoin/blob/4ad3b3c72c73d61e0a0cab541dca20acf651320d/src/wallet/rpcwallet.cpp#L135

When you make RPC call 'getnewaddress' that function will be called, and addresses keys are already generated (keypool) and saved into wallet.dat file.

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