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Is there a way to guess, with some level of probability , that a 20 byte array is an Ethereum address, besides doing a query against the current StateDB and its history ?

I want to discover hidden addresses in the input for contracts, so , I guess, I would need to (somehow) apply elliptic curve algorithm to this 20 byte array and determine if it looks like part of Ethereum's public key.

Is what I am proposing doable? If so, how would one implement this task ?

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Any sequence of 20 bytes can be used as an Ethereum address, so I don't think you can do anything useful here other than check whether the address has ever had a balance.

  • but shouldn't there be some pattern within the data? There can't be an address like this : 0x1111111111111111111111111111111111111111 , or is it? If so, a private key for an address with all zeros must exist too and this address has a lot of money. – Nulik Aug 15 '18 at 13:45
  • I believe that 0x1111111111111111111111111111111111111111 is exactly as likely as an address as any other. And yes, there very likely exist a private key for 0x0 as well. – user19510 Aug 15 '18 at 13:50

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