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I'm looking to setup a monero address for each of my users on my website so they can sign a message to prove that they own the monero address. Since you cannot sign a message with your payment_id, this is the only way it seems. My main concern is if a user can prove that they own that specific address, by signing the a message.

A good example is by signing the message of a bitcoin address, it proves that the monero user owns that particular bitcoin address. This is just one of the use cases I have.

  • Is there a question ? – user36303 Sep 28 '17 at 18:11
  • Hi @duckx, You also asked about signing messages here: How to sign a message with my public monero address and verify it using the cli / gui / javascript app? and got very detailed answers, but did not select one. What is different here? – Jonathan Cross Sep 28 '17 at 19:03
  • It's different. Say I have 100 users and each users has their own private key on their account. I want to be able to write a script where I can just sign a message with their private key without the need to import their key into the wallet or best not even needing the core wallet if possible. – Patoshi パトシ Sep 28 '17 at 20:51
  • You need the private key to sign a message, same in Bitcoin and Monero. I don't see any way that you could use the key to sign a message without importing it into some piece of software. – Jonathan Cross Oct 1 '17 at 22:14

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