Best approach using hashcat
#1
Hi there,

Im looking for an approach for an attack on half a md5 checksum an i hope you guy's here can point me in the correct direction.

I have a checksum, for instance XXXXBA28B796XXXX, which is only the first 16 chars. The last 16 chars are not checked by the application and thus irrelevant. What is the best way in getting any password which will match the first 16 chars? In my opinion there are more options available since not the whole hash is being checked.

as example:

XXXXBA28B796XXXX-0000000000000000

until

XXXXBA28B796XXXX-FFFFFFFFFFFFFFFF

are valid.

which, i think will reduce the attack. Maybe im looking at it wrong Smile

Hope you guy's can help me out.

Kind regards,

skeruno
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#2
On https://hashcat.net/wiki/doku.php?id=example_hashes you'll see the option "5100 Half MD5" which checks the first half of MD5 as you described. So just use that option?
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