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[Bug libc/13286] RFE: bcrypt support
- From: "jakub at redhat dot com" <sourceware-bugzilla at sourceware dot org>
- To: glibc-bugs at sources dot redhat dot com
- Date: Thu, 13 Oct 2011 12:46:28 +0000
- Subject: [Bug libc/13286] RFE: bcrypt support
- Auto-submitted: auto-generated
- References: <bug-13286-131@http.sourceware.org/bugzilla/>
http://sourceware.org/bugzilla/show_bug.cgi?id=13286
Jakub Jelinek <jakub at redhat dot com> changed:
What |Removed |Added
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CC| |jakub at redhat dot com
--- Comment #3 from Jakub Jelinek <jakub at redhat dot com> 2011-10-13 12:46:28 UTC ---
You haven't read the paper in detail, right? You can tweak how expensive is it
to compute it.
E.g.
crypt ("Hello, world!", "$6$rounds=99999999$asaltof16chars..")
takes almost 80 seconds to compute on pretty fast box these days, and the
hashing scheme allows even 10 times more rounds than that. While you can
parallelize by computing crypt of many passwords at once, computing a single
password is hardly parallelizable.
So if you are worried that you can crack it too fast, just use a higher rounds=
from the default 5000.
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