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<DIV dir=ltr align=left><FONT face=Arial color=#0000ff size=2><SPAN
class=680223712-23012009>GRC also has an excelent netcast series "Security Now!"
relating to PC and Data security in general. Well worth a
review/listen. Nearly 180 episodes now, all archived on that (and TWiT's)
site.</SPAN></FONT></DIV>
<DIV dir=ltr align=left><FONT face=Arial color=#0000ff size=2><SPAN
class=680223712-23012009></SPAN></FONT> </DIV>
<DIV dir=ltr align=left><FONT face=Arial color=#0000ff size=2><SPAN
class=680223712-23012009>Regards.</SPAN></FONT></DIV>
<DIV dir=ltr align=left><FONT face=Arial color=#0000ff size=2><SPAN
class=680223712-23012009></SPAN></FONT> </DIV>
<DIV dir=ltr align=left><FONT face=Arial color=#0000ff size=2><SPAN
class=680223712-23012009>Dave G0WBX.</SPAN></FONT></DIV>
<DIV dir=ltr align=left><FONT face=Arial color=#0000ff size=2><SPAN
class=680223712-23012009></SPAN></FONT> </DIV><BR>
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<FONT face=Tahoma size=2><B>From:</B> Matt Murphy
[mailto:matt.kc8bew@gmail.com] <BR><B>Sent:</B> 23 January 2009
04:56<BR><B>To:</B> aprssig@tapr.org<BR><B>Subject:</B> Re: [aprssig] Password
authentication<BR></FONT><BR></DIV>
<DIV></DIV>
<DIV class="ArwC7c ckChnd" id=:18a><BR>Scott Miller wrote><BR>[for the
unabridged version, see Scott's original post]<BR><BR>>Someone on the
Tracker2 mailing list pointed out that the scheme is<BR>>architecturally
identical to the Perfect Paper Passwords system<BR>>(<A
href="http://www.grc.com/ppp/design.htm"
target=_blank>http://www.grc.com/ppp/design.htm</A>), so if you're familiar
with that,<BR>>this is pretty much the same thing. It's also similar
to S/KEY, but<BR>>with some important differences.<BR><BR>>The scheme
works like this: You pick a reasonably long and<BR>>hard-to-guess
pass phrase, and enter that at the T2's command line.<BR>>This gets
converted to a 128-bit key and stored, and the sequence<BR>>counter is set
to 0.<BR><BR>GRC has a good page for <FONT style="COLOR: rgb(0,0,0)"
face="Verdana,Arial,Helvetica,Sans-Serif,MS Sans Serif" color=#000099
size=2>"Ultra High Security" passwords also. It is <A
href="https://www.grc.com/passwords.htm">https://www.grc.com/passwords.htm</A>.
Everytime the page refreshes it displays a new set of three, 256 bit
passwords. They will never be diplayed again (at least not in
our/kids/grandkids lifetime).<BR></FONT></DIV><BR>I like it Scott.<BR
clear=all><BR>73,<BR>Matt Murphy, kc8bew<BR>Muskingum Co. ARES
EC<BR></BLOCKQUOTE></BODY></HTML>