Documentation exported from Bitcoin Core 0.17.99

signmessage (0.17.99 RPC)

blockchain

control

generating

mining

network

rawtransactions

util

wallet

signmessage "address" "message"

Sign a message with the private key of an address

Arguments

1. "address"

string

required

The bitcoin address to use for the private key.

2. "message"

string

required

The message to create a signature of.

Result

"signature"

string

The signature of the message encoded in base 64

Examples

Unlock the wallet for 30 seconds

bitcoin-cli walletpassphrase "mypassphrase" 30

Create the signature

bitcoin-cli signmessage "1D1ZrZNe3JUo7ZycKEYQQiQAWd9y54F4XX" "my message"

Verify the signature

bitcoin-cli verifymessage "1D1ZrZNe3JUo7ZycKEYQQiQAWd9y54F4XX" "signature" "my message"

As json rpc

curl --user myusername --data-binary '{"jsonrpc": "1.0", "id":"curltest", "method": "signmessage", "params": ["1D1ZrZNe3JUo7ZycKEYQQiQAWd9y54F4XX", "my message"] }' -H 'content-type: text/plain;' http://127.0.0.1:8332/