Amateur Radio Stack Exchange
Amateur Radio Stack Exchange

Questions tagged [encryption]

9 questions
26
votes
7 answers

Encrypted traffic and amateur radio

Am I allowed to send encrypted traffic via any medium or any frequency, or is this completely barred (and thus everything has to be open with no exceptions?)
berry120
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11
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2 answers

Why do Amateur Radio organizations in the United States oppose the relaxation of encryption prohibitions?

I saw this question stating that it is illegal to encrypt traffic, at least in the US and UK. I also heard that there was recently an attempt to get the FCC to loosen this restriction, but a lot of hams argued against it. Why do Amateur Radio…
Dan KD2EE
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10
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3 answers

Are hashes (such as md5) legal in the US

If I were to implement a remote computer control system using amateur radio, would using hashes (such as md5, sha-*, etc...) for authentication be permissible under the United States rules?
W8AWT
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5
votes
3 answers

Is compression "encryption" under FCC regs?

I read this question about digital signatures and FCC prohibitions on "obscuring" messages in amateur transmissions, and it cause me to think of something: the difference between encryption and compression is small. If I send a file in compressed…
Zeiss Ikon
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5
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1 answer

Signing of messages transmitted over ham radio

FCC Regulation 97.113 (a) 4 states that: "messages encoded for the purpose of obscuring their meaning" Are "Prohibited transmissions", I believe this is the clause that is used to prohibit encryption over ham radios. Are there any other clauses that…
DavidT
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3
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1 answer

UK "Remote Operation" defination

I am a UK licensed Amateur Radio operator with an Intermediate License. I have a question surrounding the UK's (Ofcom's) definition of "Remote Operation". My understanding is that for any Remote Operation you must not use any form of encryption on…
user14615
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2
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1 answer

In Canada, if I want to use DMR encryption on ham radio, how should I share my encryption key?

In Canada, one is permitted to "use a code or cipher that is not secret" on amateur radio. (See: https://laws-lois.justice.gc.ca/eng/regulations/sor-96-484/FullText.html under "Communications with Radio Apparatus in the Amateur Radio…
Felix An
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1
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Retevis MURS radio and encrypted sub codes

I have some Retevis MURS two-way radios model number RT27V. In the programing software there is an option for DCS encrypt. Now I turned on and off the DCS encrypt option and using my NooElec SDR with SDR# I can see the DCS tone with DCS encryption…
GhostProtocol
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0
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1 answer

Is it legal to transmit scrambled or encrypted voice via SSB on ham bands?

And also, can anyone tell me how? Using Arduino or any other way ...
Andrew
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