[Freedombox-discuss] Store-and-forward is a necessity

[Tony Godshall]

On Thu, Mar 3, 2011 at 11:35, Tony Godshall <togo at of.net> wrote:
> On Wed, Mar 2, 2011 at 12:53, Jonas Smedegaard <dr at jones.dk> wrote:
>> On Wed, Mar 02, 2011 at 03:34:18PM -0500, Jay Sulzberger wrote:
>>
>>> And ZRTP:
>>>
>>>  http://en.wikipedia.org/wiki/ZRTP
>>
>> Sorry, but this is not Free Software.  Yes, advertised as such, but try
>> actually fetch the code and it turns out it isn't - and there is no response
>> when emailing them asking nicely about it.
>>
>> Please do prove me wrong!
>>
>>
>>  - Jonas
>
>
> Ah, Phil Zimmerman.  Creator of PGP.  Open source -> publicity ->
> closed -> profit.  I think I see a pattern...

OK, so ZRTP is a proposed open standard. Not a program.

Proposed RFP by Phil Zimmerman et al is here:

  http://www.zfone.com/docs/ietf/draft-zimmermann-avt-zrtp-23x.html

Phil Zimmerman et al and implement protocol in proprietary program
zphone.  Zphone FAQ at makes it clear that zphone is not open
source[1]

Wikipedia indicates there are four purported free implementations[2].
I have not validated that claim.  Nor the definition of "free" in that
context.  References to "GNU ZRTP" and "libzrtp" are worth pursuing...

Tony


[1] quote from  http://www.zfone.com/faq.html