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Old 03-05-2015, 09:26 PM   #1
alnn
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encrypting audio data


will encrypting my audio data and burning it on a cd/dvd be worth it since the other person can copy it onto there pc? such as audio files for court? I know it can be copied as long as the pc reads it. but can I protect or encrypt its data as not to be altered when copied? if it is possible please do tell thanks in advance.

Last edited by alnn; 03-05-2015 at 09:34 PM.
 
Old 03-05-2015, 10:15 PM   #2
metaschima
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Welcome to LQ.

I think you need to be more specific and clear as to what is needed. From what you said so far, I'm thinking authenticated encryption may be what you want:
https://en.wikipedia.org/wiki/Authenticated_encryption

However, unless it is a rewriteable disk, I doubt anyone can change the data in transit aside from switching the disk with another, but then that one won't decrypt unless it was encrypted with the same key.
 
Old 03-05-2015, 10:38 PM   #3
alnn
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thank you actually that is what I was looking for. I figured not to use RW. on that note how do I do that with linux? I am pretty linux savoy already but burning data is new to me.
 
Old 03-06-2015, 01:10 AM   #4
veerain
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For burning cd/dvd you have command line tools 'cdrecord' or 'wodim'.

Your distro might have one of them and also have GUI burners like K3b.
 
Old 03-07-2015, 03:17 PM   #5
metaschima
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Probably the easiest solution is to sign the encrypted file with gpg and give the other party or the key server your public key. You can also distribute the key to the encrypted files by encrypting it with gpg.

Last edited by metaschima; 03-07-2015 at 03:20 PM.
 
  


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