I've lost a Zip password

I used Syncback to make an encrypted backup of my data with a random 20-character alphanumeric Keepass password. Syncback used the Pkzip algorithm. And I lost the kdbx password file. A brute force attack using John or Hashcat seems impossible to me.

Do you know if it is possible to recover it by comparing an unencrypted file with an encrypted file?

Do you know of a site where I can send my hash?

submitted by /u/43ct0r
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from hacking: security in practice https://ift.tt/hBqkTjI

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