Crypto Currency Scanners

[bobbyK12345]

Could BE be used to scan an image for a Bitcoin address, Ethereum, etc.? or would a scanner need to be compiled for such a purpose?

[simsong]

Sure. How do you want to validate them?
It could be a special-purpose scanner (other people have built them), or done with a regular expression. If it is a special-purpose scanner, it could also run any checksum algorithms.

[bobbyK12345]

Good question - I don't know that crypto currency addresses have to meet a checksum (do they?), but if I can run it through a regex search I will try that first. I was thinking of trying to build a scanner as part of the financial scanner, but without a checksum or anyway to validate that would probably result in too many responses. Thanks for the response! Bob On Friday, June 28, 2024 at 02:27:23 PM CDT, Simson L. Garfinkel ***@***.***> wrote: Sure. How do you want to validate them? It could be a special-purpose scanner (other people have built them), or done with a regular expression. If it is a special-purpose scanner, it could also run any checksum algorithms. — Reply to this email directly, view it on GitHub, or unsubscribe. You are receiving this because you authored the thread.Message ID: ***@***.***>

[simsong]

You will be very unhappy with a regex that searches for hexadecimal numbers in a row unless you have other formatting information that can be keyed off of.

[bobbyK12345]

What would you recommend?  how would you search for crypto addresses? On Thursday, July 11, 2024 at 02:26:09 PM CDT, Simson L. Garfinkel ***@***.***> wrote: You will be very unhappy with a regex that searches for hexadecimal numbers in a row unless you have other formatting information that can be keyed off of. — Reply to this email directly, view it on GitHub, or unsubscribe. You are receiving this because you authored the thread.Message ID: ***@***.***>

[simsong]

I would propose a two step process:

1 - Identify potential candidates with a regular expression.
2 - For crypto addresses that have a checksum or some other mathematical check, use it. Otherwise, look for other contextual information, like "bitcoin" or "BTC" or ₿ or the word "address" or "wallet".