Zoom rolled their own encryption scheme, transmit keys through servers in China

Re:Zoom rolled their own encryption scheme, transmit keys th... by sudosysgen on Friday April 03, 2020 @07:03PM (#22774775)

Sensor noise does not translate nearly as well as one might think in compressed videos. And there are likely repeating data blocks big enough to analyze.

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Re:Zoom rolled their own encryption scheme, transmit keys th... by tptacek on Friday April 03, 2020 @07:27PM (#22774909)

I mean: go generate the test case that shows this. You don't even have to encrypt to prove it out; you can safely assume ECB will reveal any aligned 16-byte repeats, so all you need to do is take a histogram of all the consecutive 16-byte blocks in your encoded output.

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