How to create minimum size (empty) zip file, which has 22B?
Here you go:
50 4b 05 06 00 00 00 00 00 00 00 00 00 00 00 00
00 00 00 00 00 00
That has the MD5 signature you provided.
If you have Info-ZIP's zip, you can create it thusly:
zip empty.zip anyfile
zip -d empty.zip anyfile
That adds "anyfile" to a new zip file, and then deletes it from the zip file, leaving it empty.
An easier-to-use version for copying-and-pasting into the shell:
echo UEsFBgAAAAAAAAAAAAAAAAAAAAAAAA== | base64 -d > empty.zip
This just prints the base64
'd version of the empty zip file (created by creating a zip file with a single file then deleting that single file from the zip file), and reverse the encoding with base64 -d
and writes the output to empty.zip
.
If the version of base64
that ships with your machine doesn't use the same syntax as above, here's a more-portable but less-terse alternative:
echo UEsFBgAAAAAAAAAAAAAAAAAAAAAAAA== | openssl enc -d -base64 > empty.zip