signmessage JSON-RPC command

signmessage "address" "message"

Sign a message with the private key of an address

Arguments

1. "address"    (string, required) The Bitcoin Cash 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 a JSON-RPC call
> 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/

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Bitcoin Cash Node Daemon version v28.0.1-4b729ce

Documentation on docs.bitcoincashnode.org reflects the current master branch in Git, and may include API changes that are not yet present in the latest release.