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<DIV><SPAN class=179592215-07122003><FONT face=Arial color=#0000ff size=2>From
what I have read it is unbreakable in principle, because you can find out if is
it has been intercepted (then of course you declare the key void and exchange a
new one).</FONT></SPAN></DIV>
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<DIV class=OutlookMessageHeader dir=ltr align=left><FONT face=Tahoma
size=2>-----Original Message-----<BR><B>From:</B>
extropy-chat-bounces@lists.extropy.org
[mailto:extropy-chat-bounces@lists.extropy.org]<B>On Behalf Of
</B>Technotranscendence<BR><B>Sent:</B> 07 December 2003 16:21<BR><B>To:</B>
ExI chat list; wta-talk; hit; extropy-chat<BR><B>Subject:</B> Re:
[extropy-chat] Encryption revolution<BR><BR></FONT></DIV>
<DIV><FONT size=2>Does anyone seriously think it is unbreakable? I
believe it's more of a matter of not yet finding a way to break
it.</FONT></DIV>
<DIV> </DIV>
<DIV><FONT size=2>Dan</FONT></DIV>
<BLOCKQUOTE
style="PADDING-RIGHT: 0px; PADDING-LEFT: 5px; MARGIN-LEFT: 5px; BORDER-LEFT: #000000 2px solid; MARGIN-RIGHT: 0px">
<DIV
style="BACKGROUND: #e4e4e4; FONT: 10pt arial; font-color: black"><B>From:</B>
<A title=gpmap@runbox.com href="mailto:gpmap@runbox.com">Giu1i0 Pri5c0</A>
</DIV>
<DIV style="FONT: 10pt arial"><B>To:</B> <A title=wta-talk@transhumanism.org
href="mailto:wta-talk@transhumanism.org">wta-talk</A> ; <A
title=hit@yahoogroups.com href="mailto:hit@yahoogroups.com">hit</A> ; <A
title=extropy-chat@extropy.org
href="mailto:extropy-chat@extropy.org">extropy-chat</A> </DIV>
<DIV style="FONT: 10pt arial"><B>Sent:</B> Sunday, December 07, 2003 8:48
AM</DIV>
<DIV style="FONT: 10pt arial"><B>Subject:</B> [extropy-chat] Encryption
revolution</DIV>
<DIV><BR></DIV>
<DIV>
<DIV class=OutlookMessageHeader dir=ltr align=left><FONT face=Tahoma
size=2></FONT></DIV><FONT face=Arial color=#0000ff size=2></FONT>From <A
href="http://www.2theadvocate.com/stories/120703/bus%5f7sci001.shtml">2theadvocate.com</A>:
After 20 years of research, an encryption process is emerging that is
considered unbreakable because it employs the mind-blowing laws of quantum
physics. In November, a small startup called MagiQ Technologies Inc. began
selling what appears to be the first commercially available system that uses
individual photons to transfer the numeric keys that are widely used to
encode and read secret documents. <BR>MagiQ (pronounced "magic," with the
"Q" for "quantum") expects this will appeal to banks, insurers, government
agencies, pharmaceutical companies and other organizations that transmit
sensitive information. "We think this is going to have a huge, positive
impact on the world," said Bob Gelfond, MagiQ's founder and chief executive.
Encryption schemes commonly used now are considered safe, though they
theoretically could be broken someday. But even before that day arrives,
Gelfond believes quantum encryption is superior in one important way. In
some super-high-security settings, people sharing passwords and other
information must have the same key, a massive string of digits used to
encode data. Sometimes the keys will be transferred by imperfect means --
via courier or special software. They are not changed very often and can be
susceptible to interception. <BR>Quantum encryption employs one of the
defining discoveries of physics: Heisenberg's Uncertainty Principle, which
says subatomic particles exist in multiple possible states at once, however
hard as that may be to imagine, until something interacts with them.</DIV>
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