I generated a paper wallets with offlineaddress.com. Is there a way to check if the private key corresponds to the public key without compromising the wallet by loading it onto an online computer?


First off, only trust highly-reputable software to generate private keys, especially if they're web-based. It seems like this software has only 16 stars on GitHub and only 2 contributors: https://github.com/mikewoods/OfflineAddress.com

To answer your question, the only way to verify that a private key corresponds to the public key is to actually run the algorithm on a computer. My best advice here is to use a computer that is offline and that boots a highly-reputable open source operating system.

  • Yes, the addresses have been created with OfflineAddress.com with a live Ubuntu. So import the wallet (on a live system) and see if the private key computes to the public key? Or trust OfflineAddress and safe the hassle? – Reactormonk Aug 12 '14 at 15:38
  • Import the private keys into electrum, it will generate the public address to double-check. – Reactormonk Aug 12 '14 at 17:53
  • To clarify, reconsider using this service as it's the first I heard of it myself. Even "reputable" services like vanitygen have been compromised such that priv keys are stolen. – Wizard Of Ozzie Aug 13 '14 at 6:32

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