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+--- Thread: Public Hash Cracker programming help (/thread-1286.html)
Public Hash Cracker programming help - fizikalac - 06-13-2012
Hello,
I need some code and database optimization tips. I'm trying to make a custom public hash cracker, just for LinkedIn hashes.
Functions:
- adding multiple passwords to the database at once
- downloading all uncracked hashes
- downloading cracked password list
I already did a beta version in PHP and MySQL, but database calls are really slow. They take about 4 seconds each, because the database has 6.5 million rows.
My VPS server:
- Ubuntu server x64
- Intel i7 2,93GHz (1 core only)
- 2GB RAM
Database table:
- id - INT(11)
- sha1 - VARCHAR(40)
- plain - TEXT
The current SQL query for adding passwords is:
PHP Code:
UPDATE linkedin SET plain='".$plains[$i]."' WHERE substring(sha1,6,40) LIKE substring(SHA1('".$plains[$i]."'),6,40)
*the query gets executed in a for loop for each new password, is there a faster solution?
What can i do to optimise my application? Thank you so much!
RE: Public Hash Cracker programming help - Hash-IT - 06-13-2012
Well done for getting this far fizikalac.
I am really looking forward to this, I can't wait to get it going. I have been storing up my founds for a good few days now !!
I know a few others who will join in when its up, we are all waiting in the background !
RE: Public Hash Cracker programming help - undeath - 06-13-2012
deliver hourly cached data. Are you sure there is no SQLi in there? Also using = instead of like. You also could try not to store the hashes in hex.
RE: Public Hash Cracker programming help - fizikalac - 06-13-2012
(06-13-2012, 09:54 PM)undeath Wrote: deliver hourly cached data. Are you sure there is no SQLi in there? Also using = instead of like. You also could try not to store the hashes in hex.
Thanks! = instead of LIKE was really an obvious one
How can I store the hashes in binary?
RE: Public Hash Cracker programming help - Xanadrel - 06-15-2012
Use 5 int columns to store the hashes.