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Date: Fri, 6 Jul 2012 12:23:38 +0200
From: Frank Dittrich <frank_dittrich@...mail.com>
To: john-dev@...ts.openwall.com
Subject: Re: KRB4: fix memset in afs_cmu_StringToKey()
On 07/06/2012 12:09 PM, Frank Dittrich wrote:
> On 07/06/2012 11:56 AM, magnum wrote:
>> Are you sure about this? How about sizeof(DES_cblock), what size is that?
>
> Quite sure, sizeof(DES_cblock) is 8.
> On 64bit, sizeof(key) == sizeof(*key) == sizeof(DES_cblock) == 8.
May be the memset is superfluous, because further down the code, there's
a strncpy with length 8.
The man page says:
If the length of src is less than n, strncpy() pads the remainder of
dest with null bytes.
So we should instead just remove the memset.
Frank
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