I can help you investigate whether your private key (also known as nonce) is being reused.

Bitcoin SignMessage Output Explanation

When you run ./bitcoin-cli signmessage "p2pkh-address-here" "abc123" on Debian Bookworm, the output might look like this:

$ ./bitcoin-cli signmessage "p2pkh-address-here" "abc123"
> Bitcoin: transaction signature
+--------------------------+
| Signature (base64) |
+--------------------------+

The first line indicates that a new transaction signature was created. The second line is the base64-encoded signature that can be used to verify the transaction.

Nonce Reuse in SignMessage

To determine whether your private key (nonce) is being reused, we need to examine the signmessage' output in more detail. Here's what you can do:

> Bitcoin: transaction signature

Note that the transaction signature uses a nonce variable (p2pkh-address-here). In the Bitcoin standard, nonces are used to generate random numbers for transactions, but they are not reused across multiple transactions.

> Signature (base64) |

• Run echo -n “p2pkh-address-here” | bitcoin-cli signmessage’ to see the output of the signmessage' command with the nonces variable set to "p2pkh-address-here". This will create a new transaction signature, which should use the same tricks as before.

$ echo -n "p2pkh-address-here" | bitcoin-cli signmessage
> Bitcoin: transaction signature
+---------------------+
| Signature (base64) |
+----------------------+

• Always use the bitcoin-clicommand with caution, as it can create signatures without verifying the sender's identity. Use the-verbose` option to enable more verbose logging and error messages.

Hope this helps! If you have any additional questions or concerns, feel free to ask.

Metamask Keys Words