<div><span class="gmail_quote">On 27/08/06, <b class="gmail_sendername">Jouni Malinen</b> <<a href="mailto:jkmaline@cc.hut.fi">jkmaline@cc.hut.fi</a>> wrote:</span>
<blockquote class="gmail_quote" style="PADDING-LEFT: 1ex; MARGIN: 0px 0px 0px 0.8ex; BORDER-LEFT: #ccc 1px solid">On Wed, Aug 23, 2006 at 10:26:14AM +0200, Paul-Henri Gauzence de Lastours wrote:<br><br>> Actually I don't want to use WEP, as it concerns wireless networks and as
<br>> recent works from UK dramatically reduced the time for cracking it. The<br>> project on which I'm working already contains en encryption part using DES<br>> with static keys. What I want to do is just to use the dynamic key exchange
<br>> mechanism without encrypting data, this work being attributed to another<br>> application. I just need to get a key of more than 64 bits, so that<br>> eventually after troncating it, I can use it for DES encryption. Do you
<br>> think this ca be done ?<br><br>Which IEEE 802.1X authenticator would you be using here? IEEE 802.1X can<br>be used to distribute encryption keys, but I have not seen it being used<br>for wired networks and as such, this would require changes to both the
<br>authenticator and supplicant.</blockquote>
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<div>I am using hostapd as authenticator with wpa_supplicant as supplicant.</div>
<div>Do you think key distribution can be added easily on these pieces of software ? Does it require a lot of time / coding ? Can some existing functions be used for that ? In fact I thought this would not be so difficult : as I can get random numbers thanks to EAP-TTLS, I then just need to derivate a key from these numbers and share it. Can you tell me if I am right or if it will be more complicated thant that ?
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<div>Many thanks !</div></div>