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Is there a library to verify a signed message with a provided monero address in Javascript only? I'm trying to build an app in javascript that takes a signed message and verifies that a particular address owns that message.

If there is no javascript library that can do this. Where can I start to figuring out how to go about this?

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Check out Lugi's repo. There's a page sign.html which will have the code you need.

generates and verifies signatures on arbitrary data using one of your account private keys (spend key or view key)

The same tools are hosted here for experimenting: https://xmr.llcoins.net/sign.html

  • so i cannot verify a message with just the address alone? – Patoshi パトシ Oct 30 '17 at 19:54
  • Did you even check out the site? – JollyMort Oct 30 '17 at 19:59
  • i did what i meant was just using the public monero address only to do the verification. your answer says "using one of your account private keys". I'm not going to have the private keys of these public addresses. all I'm going to have is the monero public address and just the signed message. – Patoshi パトシ Oct 30 '17 at 21:15
  • If you opened the link you'd see the address is made part of the signature and the signature is produced by either of the private keys. – JollyMort Oct 31 '17 at 5:28
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    I'm guessing the private key is for generation, not for verification. – user36303 Oct 31 '17 at 16:27

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