Circumventing wiretap requirements set by the government on providers of VoIP services by not dealing with providers of VoIP services, and having only an agreement between the two users of secure phones, "zfone" does not involve the laborious PKI - public key infrastructure - that works by providing each party with digital certificates that validate their authenticity.
http://news.com.com/2002-1029_3-0.html?tag=ne.catdrhttp://news.com.com/VoIP+security+prototype+gets+an+airing/2100-1029_3-5809328.html?tag=cd.topC/Net
http://www.news.com/ VoIP security prototype gets an airing
By Joris Evers
http://news.com.com/VoIP+security+prototype+gets+an+airing/2100-1029_3-5809328.html LAS VEGAS--More details have emerged on PGP creator Phil Zimmerman's effort to provide a secure way to make phone calls over the Internet. As earlier reported, Zimmermann has developed a prototype of an Internet telephony application that encrypts calls, preventing anyone from eavesdropping. On Thursday, the creator of the Pretty Good Privacy e-mail encryption program, took the wraps off the project at the Black Hat security confab here
http://news.com.com/Black+Hat+Hunting+bugs%2C+finding+holes/2009-7348_3-5808386.html?tag=nl. The prototype, called "zfone," should be available online at the end of August, along with accompanying documentation, Zimmermann said. The VoIP client is based on the open-source Shtoom VoIP phone client, with added cryptography.
The project so far has been funded by Zimmermann himself. He also got some help from Richard Clarke, a former Whitehouse cybersecurity czar, and Internet telephony pioneer Jeff Pulver. Zimmermann is now talking to venture capitalists about his work, hoping to raise anywhere between several hundred thousand and a couple of million dollars, he said.
<snip>The VoIP client is based on the open-source Shtoom VoIP phone client
http://divmod.org/projects/shtoom . Zimmermann said he added cryptography to it. <snip>
With the new name of Windows being Vista, 'ctrl-alt-del' will now be known as : 'hasta la vista' :-)
"Programming today is a race between software engineers striving to build bigger and better idiot-proof programs, and the Universe trying to produce bigger and better idiots. So far, the Universe is winning." -- Rich Cook
"The true measure of a man is how he treats someone who can do him absolutely no good." -- Samuel Johnson
Coronal Mass Ejections Near solar maximum we observe these an average of 2 to 3 times per day (3.4 MB MPEG movie from the SOHO/LASCO instrument showing a month of CMEs from 1998).
http://science.msfc.nasa.gov/ssl/pad/solar/images/c2_1mth.mpg