Re: TETRA encryption

From: heiko (heiko2_at_bazmail.nl)
Date: 05/07/03 

Date: 7 May 2003 10:07:39 -0700

Lassi,
As you are a Nokia guy I fully understand that you want to sell Tetra
to the whole world. But you don't answer my questions...At least you
may want to help us understand what kind of crypto is implemented in
the Finnish Virve network? Motorola says there is no crypto at all in
your current Tetra networks.

Lassi Hippeläinen <lahippel@ieee.orgasm-research.invalid> wrote in message news:<3EB8B669.A2F9A98@ieee.orgasm-research.invalid>...
> Jim Watt wrote:
>
> > TETRA is currently focused on providing a system for the police
> > and emergency services.
> >
> > GSM is certainly outside my present competence to monitor.
>
> TETRA and GSM sprouted on the same ground. The idea was to use as much
> GSM components as possible, so that manufacturing costs of expensive
> closed group radio networks could be brought down. There was a serious
> need to convert even emergency networks to digital. Security is one of
> them, portable computers with IP stacks another.
>
> > Neither IMHO provide the same level of operational use to the
> > man on the street who needs fast reliable communication.
>
> TETRA has unique capabilities to form user groups. By default all
> services use the same base station network, but cannot see each other.
> However, it is possible to form ad hoc groups across several emergency
> services, so that they can cooperate in a catastrophe. To extend range,
> a TETRA phone can act as a relay for other phones. No analogue system
> comes even close.
>
> When the ship Estonia sunk in the Baltic Sea in 1994, 852 people were
> drowned. There were five separate emergency services in the rescue
> operation, with five incompatible radio systems, and they could talk to
> each other only via a landline telephone patch, and the chief of the
> operation could not work in real time. It was a lesson that influenced
> TETRA features.
>
> <...>
> > I believe that our emergency services were one of the first to test
> > TETRA and it looks like others are going to fall into the same
> > expensive trap.
>
> TETRA is cheap. The same infrastructure and phones work for all
> services. (Don't compare it to an old analogue system of a single
> service, compare it to separate digital replacements for each service!)
> TETRA cannot be as cheap as GSM, because the phones are more complex,
> and their production quantities are lower. To recover some of the cost,
> it has been discussed that TETRA could be opened to commercial use, e.g.
> fleet management.
>
> -- Lassi

Relevant Pages

  • Re: TETRA encryption
    ... >> GSM is certainly outside my present competence to monitor. ... >TETRA and GSM sprouted on the same ground. ... >a TETRA phone can act as a relay for other phones. ... There were five separate emergency services in the rescue ...
    (comp.security.misc)
  • Re: TETRA encryption
    ... TETRA and GSM sprouted on the same ground. ... TETRA has unique capabilities to form user groups. ... a TETRA phone can act as a relay for other phones. ... There were five separate emergency services in the rescue ...
    (sci.crypt)
  • Re: TETRA encryption
    ... >> GSM is certainly outside my present competence to monitor. ... >TETRA and GSM sprouted on the same ground. ... >a TETRA phone can act as a relay for other phones. ... There were five separate emergency services in the rescue ...
    (sci.crypt)
  • Re: TETRA encryption
    ... TETRA and GSM sprouted on the same ground. ... TETRA has unique capabilities to form user groups. ... a TETRA phone can act as a relay for other phones. ... There were five separate emergency services in the rescue ...
    (alt.computer.security)
  • Re: TETRA encryption
    ... >> GSM is certainly outside my present competence to monitor. ... >TETRA and GSM sprouted on the same ground. ... >a TETRA phone can act as a relay for other phones. ... There were five separate emergency services in the rescue ...
    (alt.computer.security)