3 Dec
2021
3 Dec
'21
1:23 p.m.
Compression is never encryption!!!!!!
Also change the subject.
From: Cliff Sojourner via 44Net<mailto:44net@mailman.ampr.org>
Sent: Friday, December 3, 2021 11:10 AM
To: 44Net general discussion<mailto:44net@mailman.ampr.org>
Cc: Cliff Sojourner<mailto:cls@employees.org>
Subject: Re: [44net] DN42 for 44net?
Unfortunately, compression is considered a type of encryption so also a no no over the
air. Apparently, even a common well-documented type such as ZIP.
We could run SSL with a NULL cipher over the air. Not much gain from that, though,
because the HMAC is made to detect small number of bit errors, but not at the rates we
likely see over the air. And it is detection only, no correction.
Cliff K6CLS CM87
On December 3, 2021 10:42:56 AM PST, "Tim Požar via 44Net"
<44net(a)mailman.ampr.org> wrote:
There have been two attempts to get the FCC to allow
encryption in Part
97. RM-11699 in 2013 and RM-11831 in 2019. Both have been dismissed by
the FCC. Please read these petitions and you will see that encryption
is not allowed.
Tim
On 12/3/21 10:32 AM, Dave Gingrich via 44Net wrote:
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That is referencing phone ops, transmitting music, and coded words to hide meaning. It
certainly does not include encryption, using standards based tools, such as SSH or SSL. I
was using those methods over the radio in the 1990s. IOW, that whole paragraph speaks to
the purpose of the transmission, not the traffic it generates.
It will be near impossible to establish any type of network today, that does not carry
traffic that is not encrypted in some fashion. If that is a requirement, we'd best
just give up and shut off our radios.
—
Dave K9DC
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On Dec 3, 2021, at 12:50, Tim Požar
<pozar(a)lns.com> wrote:
Please refer to § 97.113(a)(4) Prohibited transmissions...
(4) [...] messages encoded for the purpose of obscuring their meaning, except as
otherwise provided herein [...]
Tim
On 12/3/21 9:45 AM, Dave Gingrich via 44Net wrote:
> Please point out where the "the USA encryption restriction” over radio links, is
documented. After all, D-Star radios use a proprietary codec. Heck even if you access
https://ampr.org/ over a radio link, the connection is SSL encrypted, as are nearly all
web sites in the world.
> Encryption over RF links has not been illegal for years, at least in .US. I can’t
speak for other jurisdictions.
> —
> Dave K9DC
>> On Dec 3, 2021, at 11:23, air gapped via 44Net <44net(a)mailman.ampr.org>
wrote:
>>
>> Something to keep in mind: the USA encryption restriction only applies to traffic
going over the air.
>> Networks can and do have encryption as long as relay over air has information in
the clear.
>>
>> Adam Lewis
>> KC7GDY
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