Seems like what you're describing is a network based on side channels, which is an idea some colleagues of mine and I have been looking at recently. One other idea is the constant-bitrate darknet, where nodes continually send out data and only some of it consists of real packets, which are encrypted. Luckily, decent ciphers produce output which is supposed to be indistinguishable from noise, and this constant bitrate precludes traffic analysis.
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Seems like what you're describing is a network based on side channels, which is an idea some colleagues of mine and I have been looking at recently. One other idea is the constant-bitrate darknet, where nodes continually send out data and only some of it consists of real packets, which are encrypted. Luckily, decent ciphers produce output which is supposed to be indistinguishable from noise, and this constant bitrate precludes traffic analysis.