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Could a large quantity of coded information (let's say 10,000 GB) be copied from one storage device to another without first being decoded? If so, how long would something like that take?

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  • $\begingroup$ You say "coded". Do you mean "encoded", or "encrypted"? $\endgroup$
    – gnasher729
    Oct 22 '20 at 12:52
  • $\begingroup$ I guess encrypted. That would be the more properly secured form, correct? $\endgroup$ Oct 22 '20 at 12:58
  • $\begingroup$ You can copy all of the information of course, but it will remain encrypted even on the other device. $\endgroup$
    – nir shahar
    Oct 22 '20 at 13:01
  • $\begingroup$ The answer is largely the same as in the non-encoded case. The only difference is that the plaintext might be compressible, whereas the ciphertext will be hard to compress (without breaking the encryption). $\endgroup$ Oct 22 '20 at 13:11
  • $\begingroup$ How long will it take? Depends on the exact hardware involved, and out of scope here. Check how long it takes to copy 1GB, and multiply by 10,000 (unless the process can be parallelized somehow). $\endgroup$ Oct 22 '20 at 13:12

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