Date: Mon, 15 May 2000 22:53:46 +0200 From: Jos Visser <josv@osp.nl> To: Darryl Okahata <darrylo@sr.hp.com> Cc: freebsd-hardware@FreeBSD.ORG Subject: Re: Wavelan 802.11 with encryption Message-ID: <392063DA.416B1326@osp.nl> References: <200005151653.JAA25798@mina.sr.hp.com>
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Hi, Thanks for the info, just what I was looking for... ++Jos Darryl Okahata wrote: > > To answer the original question, 4.0-STABLE (and -RELEASE, I > imagine), does support encryption -- I know, I'm using it with the gold > card. Just read the wicontrol(8) man page. Note, however, that > wicontrol appears to have a bug that limits key strings to 14 bytes; > this is fine for a pure ASCII-text key (which is probably not > recommended, due to a limited keyspace), but causes problems when you > try to specify a key in hex. > > > WEP encryption (default with the Silver Wavelan card) supports a 64-bit > > key. That's strong enough for me. Anyone who's interested enough in my > > stuff to come over to my house, tap into the 802.11 traffic and feed it > > to a sufficiently strong computer to do a brute force attack on the 64 > > bit key has plenty of other (cheaper and easier) opportunities to > > retrieve whatever they want. > > Please note that the silver (64-bit) card has really only 40-bits > of encryption; 24 bits cannot be specified by the user and are used as: > > ... a per-packet sequence number (which are logically equivalent > to an initialization vector with chained block ciphers like > DES-CBC mode). > > For more info, see: > > http://mail-index.netbsd.org/tech-net/2000/02/04/0001.html > > I imagine that the gold card has only 128-24 -> 104 key bits. > > -- > Darryl Okahata > darrylo@soco.agilent.com > > DISCLAIMER: this message is the author's personal opinion and does not > constitute the support, opinion, or policy of Agilent Technologies, or > of the little green men that have been following him all day. > > To Unsubscribe: send mail to majordomo@FreeBSD.org > with "unsubscribe freebsd-hardware" in the body of the message -- Yesterday is history. Tomorrow is mystery. Today is a gift, that's why we call it 'present'. To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-hardware" in the body of the message
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