Bitcoin-cli encrypt specific address

[zoltanb]

I was playing around with bitcoin-cli.
Is there anyway I can encrypt one address with one passphrase and another address with another passphrase?
So, when sending out bitcoins from one specific address I should enter the specific passphrase of the respective address?

Every address has a private key can I secure my bitcoin-cli command line so that an address is accessible only if you know the private key?

[HCP]

The short answer is no... the passphrase is used to encrypt the wallet as a whole, so all addresses in a wallet are effectively secured by the same passphrase.

If you wanted to use different passphrases, you could try a bit of a "hack"... If you use the latest Bitcoin Core (0.15+) you are able to use multiple wallets at the same time... so you could use one address from each wallet, and use different passphrases on each wallet.

[zoltanb]

The short answer is no... the passphrase is used to encrypt the wallet as a whole, so all addresses in a wallet are effectively secured by the same passphrase.

If you wanted to use different passphrases, you could try a bit of a "hack"... If you use the latest Bitcoin Core (0.15+) you are able to use multiple wallets at the same time... so you could use one address from each wallet, and use different passphrases on each wallet.

Thanks. How to use multiple addresses? Is there a documentation somewhere about this?

[HCP]

I haven't seen any "official" documentation outside of the release notes for 0.15. Refer to: https://bitcoin.org/en/release/v0.15.0.1#multi-wallet-support

However, it seems to be a relatively easy thing to do with bitcoin-cli, you just specify the wallet using the -rpcwallet command.

Note that they do warn that the RPC interface for multi-wallet may change in the future.