Paul Lambert wrote:
>> As I understand it, the hard part is doing key exchange, because for
>> effective fast encryption you frequently swap out mid-sized symmetric
>> keys that are traded using asymmetric encryption (right? correct me if
>> I'm wrong).
> Ok ... you're wrong :-) Key exchange is
According to:
http://www.vocal.com/index.html
All the GSM vocoders listed support a mode for data and facsimile
distinction versus voice. So it appears as if the modes exist to get
a decent data channel over the encoded voice.
This yields the question: can you actually get the encoded digital
In any case, between openmoko devices encrypted calls would imply
having a personal server, as P2P communication is almost always
prevented inside a GPRS network (at least in France, it is).
The mokoslug distro for NSLU2 becomes more and more promising :)
> -Original Message-
> From: [EMAIL PROTECTED] [mailto:svhmpc-
> [EMAIL PROTECTED] On Behalf Of Bradley Hook
>
> Since all of the communications of a cell phone are digital (nothing is
> analog between mic and speaker), encrypting the voice data stream should
> be rather trivial (at l
Since all of the communications of a cell phone are digital (nothing is
analog between mic and speaker), encrypting the voice data stream should
be rather trivial (at least is in my understanding of the universe),
even if you have to resort to implementing a "virtual" mic device that
emits an encry
CALEA amd such impose mandates on communications providers, not end
users. In fact, one of the popular ideas floating around right now to
deal with the CALEA mandate is to simply tell all of your users to turn
on IPSEC, which is host-based, and then the feds can tap whatever they
want. CALEA (speci
[Recipients list pruned...]
ti, 2007-06-05 kello 01:14 +0200, Florent THIERY kirjoitti:
> An option would be some kind of "push-to-talk" : record mp3, crypt
> mp3, PUT mp3 (on a webserver/scp) -- download mp3, decrypt, listen.
Yeah, this has been discussed also. One could stick it on top of Jabbe
An option would be some kind of "push-to-talk" : record mp3, crypt
mp3, PUT mp3 (on a webserver/scp) -- download mp3, decrypt, listen.
I'm not sure this would circumvent the legislative context; for
instance, is writing encrypted sms illegal ? (i mean, by hand...)
Regards
Florent
_
No.. as far as I know, the encryption is an integral part of the
protocol. Though Martin Tomasek tells me he's seen carriers that
don't operate with encryption turned on. But in any event, I'm pretty
sure that if the network does GSM encryption, your phone can't
request a non-encrypted chan
Matthew S. Hamrick wrote:
...
Could it be possible to have you GSM request a non-encrypted channel?
Would this channel provide more bandwidth or less delay because of that?
If so, the extra bandwidth or reduced delay could be used for
efficiently using your own encryption.
Can anyone elabora
Matthew S. Hamrick wrote:
terrorists," let me just remind you that outside the US, there's some
pretty clear evidence that national governments are eavesdropping on the
conversations of traveling tech company executives and passing economic
intelligence along to competing companies in their own
Encrypted voice calls is a question that's been around for a while.
When I worked for RSA and later Certicom, we had frequent discussions
about the strength (or lack thereof) of the LFSR-based encryption
that was then in frequent use in GSM phones.
I should probably mention that GSM and CDM
> -Original Message-
> From: [EMAIL PROTECTED] [mailto:community-
> [EMAIL PROTECTED] On Behalf Of Mikko Rauhala
> Sent: Sunday, 3 June 2007 9:09 AM
> To: community@lists.openmoko.org
> Subject: Re: Phone Call Security
>
Either way, at least
> Moko-to-Moko e
su, 2007-06-03 kello 07:08 +0200, Ortwin Regel kirjoitti:
> IIRC there has been lots of discussion about this a few months back.
> Take a look at the mailing list archives or the wiki if you can find
> it!
Spesifically, see subjects "Voice over GPRS?" and "Encrypting
voice communications" in the F
IIRC there has been lots of discussion about this a few months back.
Take a look at the mailing list archives or the wiki if you can find
it!
On 6/3/07, Zack Shivers <[EMAIL PROTECTED]> wrote:
I am curious if there are any methods of on-the-fly voice encryption that
could be used for secure ca
I am curious if there are any methods of on-the-fly voice encryption
that could be used for secure calls on the OpenMoko platform. Does
anyone think this would be a worthwhile project for the future?
~Zack
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