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0 pointshurin11y ago0 comments

That's what I assumed (but I wondered if there was some other advantage I was missing).

Are not all the ciphers breakable post collection anyways? Is it fair to say that this is effectively for the purpose of blanket non-targeted surveillance? Where by having the keys in their possession it gives them a shortcut for bulk analysis and saving CPU time that would otherwise be spent breaking encryption.

And a cpu-processing-savings advantage justified cyber-attacking a foreign civilian corporation?

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3 comments · 1 top-level

rkangel11y ago· 2 in thread

With the keys, you can do data collection now, and cracking later. You can do mass interceptions and then decide which calls you want to look at.

hurinOP11y ago

>With the keys, you can do data collection now, and cracking later.

Do the attacks on A5/1 require known plaintext? I was under the impression that they do not.

BuildTheRobots11y ago

My understanding was that the A5/1 attack (and massive rainbow table) not only relies on known plaintext but also requires you to get the _start_ of the communication.

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