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Date: Tue, 29 Sep 2015 16:18:57 +0530
From: Sayantan Datta <std2048@...il.com>
To: john-dev <john-dev@...ts.openwall.com>
Subject: Re: Reading loaded password hashes inside crypt-all.
On Tue, Sep 29, 2015 at 3:05 PM, Sayantan Datta <std2048@...il.com> wrote:
> Hi Solar,
>
> Are password hashes removed from database as they are cracked ? Apparently
> there are discrepancies between salt->count and number of remaining hashes
> in salt->list. While salt-count is updated, it seems like salt->list is not
> updated to reflect the cracked hashes.
>
> pw = salt -> list;
> i = 0;
> do {
> bin = (int *)pw -> binary;
> if (bin != NULL) {
> store_binary();
> i++ ;
> }
> } while ((pw = pw -> next)) ;
>
> Running this loop in the middle of cracking results in 'i' being greater
> than 'salt->count' !! Some recent change might have triggered this issue.
> Earlier, such behavior were not noticed.
>
> This broke an optimization where hashes are re-loaded onto GPU after some
> of them are cracked, resulting in better speed!!
>
> Regadrs,
> Sayantan
>
Sorry, must have sent twice due to network issues!!
This one line patch fixes the issues but I'm not sure to commit it.
Regards,
Sayantan
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