Why memory-hard proof-of-work hashes are not a popular choice for CAPTCHA

3 comments

• $7sedam7 7 hours ago

  i don't know, seems pretty reasonable choice, especially with harder problem for requests that look like bots

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  • $ribtoks 6 hours ago

    Sure, the limitation is mostly on the verification side (of CAPTCHA solution). For client-side it does make sense.

• $Vearol448 8 hours ago

  [flagged]