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Increase Cost on bcrypt passwords Details »
Increase Cost on bcrypt passwords
Mod Version: 1.00, by Wayne Luke (Administrator) Wayne Luke is offline
Developer Last Online: Jul 2019 I like it Show Printable Version Email this Page

vB Version: 5.4.2 Rating: (1 vote - 5.00 average) Installs: 4
Released: 05 Apr 2019 Last Update: Never Downloads: 14
Not Supported Additional Files  

Valid for vBulletin 5.4.5 and higher.

As processors get more powerful, the time co-efficient to decode password hashes decreases. With vBulletin 5, you can increase the cost co-efficient so that the time stays the same with more powerful processors. The attached file does this for the default password hashing schema in vBulletin 5.4.5 and higher.

To install, simply upload the XML file into your /core/includes/xml folder. No other settings are needed. The next time your users log in, their passwords will be stored with the increased cost.

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Similar Mod
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Mini Mods Secure BCrypt Password Hashing MegaManSec vBulletin 4.x Add-ons 27 07 Jan 2016 13:52

Old 15 Apr 2019, 06:52
DamasGate DamasGate is offline
Join Date: Aug 2003
Thank you very much.

If removed in the In the future, Will we face any login problems?

Thanks again
DamasGate forums
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Old 16 Apr 2019, 07:19
delicjous's Avatar
delicjous delicjous is offline
Join Date: Nov 2014
Thank you.

I upload it to a testforum and there was no change in user-table (token, scheme and secret), datastore 'pwschemes' or passwordhistory. Do this change any data to check if it is working?
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