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edflsafoiewq
on Jan 2, 2020
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TextCaptcha: Simple Textual Captcha Challenges
Is that a problem for this use case?
shakna
on Jan 2, 2020
[–]
They're matching checksums to prove it's a human. You can check these checksums, and find or create input that will match it nearly effortlessly.
So yes, I'd say that's a problem for this use case.
edflsafoiewq
on Jan 2, 2020
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I don't really see how. What does generating collisions get you? Doesn't this just require preimage resistance?
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