encryptwallet (0.17.99 RPC)

encryptwallet "passphrase"

Encrypts the wallet with ‘passphrase’. This is for first time encryption. After this, any calls that interact with private keys such as sending or signing will require the passphrase to be set prior the making these calls. Use the walletpassphrase call for this, and then walletlock call. If the wallet is already encrypted, use the walletpassphrasechange call.

Arguments

1. "passphrase"

Examples

Encrypt your wallet

bitcoin-cli encryptwallet "my pass phrase"

Now set the passphrase to use the wallet, such as for signing or sending bitcoin

bitcoin-cli walletpassphrase "my pass phrase"

Now we can do something like sign

bitcoin-cli signmessage "address" "test message"

Now lock the wallet again by removing the passphrase

bitcoin-cli walletlock 

As a json rpc call

curl --user myusername --data-binary '{"jsonrpc": "1.0", "id":"curltest", "method": "encryptwallet", "params": ["my pass phrase"] }' -H 'content-type: text/plain;' http://127.0.0.1:8332/