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Timeline for AES blocks with a counter

Current License: CC BY-SA 4.0

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Oct 13, 2018 at 20:55 history edited kelalaka CC BY-SA 4.0
update after question update.
Oct 13, 2018 at 17:42 comment added kelalaka @isak I agree with Maarten's last comment.
Oct 13, 2018 at 17:38 comment added isak Thank you for your detailed answers. I added some more info to the question. Is it enough information? Using GCM will add more bytes to the packet. If possible I would like to keep the packet as small as possible.
Oct 13, 2018 at 11:06 history edited kelalaka CC BY-SA 4.0
explain more
Oct 13, 2018 at 10:43 comment added kelalaka He tries to make the messages unique by adding an internal counter. In this case ECB is secure right? Yes GCM by standard has random IV's and I don't say change that. I did not to say use GCM and AES-CTR without IV. Let me re-check. Thanks.
Oct 12, 2018 at 23:49 comment added Maarten Bodewes "If you are talking about the CBC or CTR mode, yes you can use ECB". I don't get this sentence. "No need to add a counter to make them unique." Uh, I'd make very sure that the IV is unique for GCM - your answer doesn't highlight this. Just a counter in the message instead of an IV is very dangerous for GCM, even more so than just for AES-CTR.
Oct 12, 2018 at 21:51 history answered kelalaka CC BY-SA 4.0