Nmap Development mailing list archives
Re: Exp Branch for OpenSSL on Windows
From: Brandon Enright <bmenrigh () ucsd edu>
Date: Tue, 20 May 2008 06:12:44 +0000
-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 On Mon, 19 May 2008 20:15:45 -0500 or thereabouts Kris Katterjohn <katterjohn () gmail com> wrote: ...snip...
I rebuilt nmap with openssl, but it didn't have any appreciable effect and I note that in the minute that it took to successfully complete version detection, one of my dual cores was at full-pelt for around 45 seconds. I'll look into this more deeply, but I wonder if anyone else noticed similar?I haven't noticed anything like this happening, but I'll try against some more hosts. Have you been able to look into it any more?
For whatever it's worth, I've been scanning millions of hosts the last few days with -sV on SSL ports like 443, 993, 995, etc. My scans are not being limited by my bandwidth but my CPU. SSL is a very CPU intensive task, especially at the initial RSA parts. I don't think there is a bug here, I think people just don't realize how expensive quality public-key crypto is. Brandon -----BEGIN PGP SIGNATURE----- Version: GnuPG v2.0.9 (GNU/Linux) iEYEARECAAYFAkgya9wACgkQqaGPzAsl94K1ggCeK2AShYhPp8JlVdAavX2SdjZG RPUAnRQOMLkODrTh1By7BRjAbQPa9TDZ =6OVk -----END PGP SIGNATURE----- _______________________________________________ Sent through the nmap-dev mailing list http://cgi.insecure.org/mailman/listinfo/nmap-dev Archived at http://SecLists.Org
Current thread:
- Exp Branch for OpenSSL on Windows Kris Katterjohn (May 08)
- Re: Exp Branch for OpenSSL on Windows Kris Katterjohn (May 15)
- RE: Exp Branch for OpenSSL on Windows Thomas Buchanan (May 15)
- Re: Exp Branch for OpenSSL on Windows Kris Katterjohn (May 15)
- Re: Exp Branch for OpenSSL on Windows jah (May 15)
- RE: Exp Branch for OpenSSL on Windows Thomas Buchanan (May 15)
- Re: Exp Branch for OpenSSL on Windows DePriest, Jason R. (May 19)
- Re: Exp Branch for OpenSSL on Windows Fyodor (May 19)
- RE: Exp Branch for OpenSSL on Windows Thomas Buchanan (May 15)
- Re: Exp Branch for OpenSSL on Windows Kris Katterjohn (May 15)
- Re: Exp Branch for OpenSSL on Windows jah (May 15)
- Re: Exp Branch for OpenSSL on Windows Kris Katterjohn (May 19)
- Re: Exp Branch for OpenSSL on Windows Brandon Enright (May 19)
- Re: Exp Branch for OpenSSL on Windows Kris Katterjohn (May 19)
- Re: Exp Branch for OpenSSL on Windows Kris Katterjohn (May 20)
- Re: Exp Branch for OpenSSL on Windows Patrick Donnelly (May 21)
- Re: Exp Branch for OpenSSL on Windows Kris Katterjohn (May 21)