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Comment by vorpalhex

4 years ago

This is a smart use of crypto too. The verifiable and public parts of crypto here are a benefit and not a con.

7 comments

vorpalhex

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isitthough42  4 years ago

If someone tells you:

    This secret image contains a Bitcoin wallet recovery key
    If you can crack the secret, the funds are yours!

    You can check the status of the wallet here: 
    https://www.blockchain.com/explorer/addresses/btc/1A1zP1eP5QGefi2DMPTfTL5SLmv7DivfNa

Now here's the secret:

    0002146273a3774b3828effff3382000someGarbageSecretThatsActuallyIs{https://youtu.be/eBGIQ7ZuuiU}EnctyptedUsingARandom4096BitStringAsPassword

Which "verifiable and public" part helped?

- Anyone can point to a random link on blockchain.com

- the encrypted secret can contain anything

  • jimmydorry  4 years ago

    They didn't do it here, but you can sign a message that includes a checksum of the application with the private key of that address. The signed message can be proved using just the public key that they have linked to.

ivalm  4 years ago

but you are not guaranteed that the decrypted key is valid.

  • ninkendo  4 years ago

    I hate that I’m saying this because I believe all of cryptocurrency to be a pyramid scheme, but… this is the perfect use case for a smart contract on ethereum…

    (Now I gotta go wash my hands after typing this.)

    • ivalm  4 years ago

      why would a smart contract help though? there needs to be proof that the encrypted key is valid, this would require zero knowledge proof but I'm not sure how you can do it for this use case.

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