No matter how you scramble and encode the communication the human voice will always have certain keys that can be easily discerned in a conversation.
An enemy can easily grab and record a radio signal. Then the digitally recorded file can be feed in a Beowulf cluster of cheap computers. That data can within a few minutes can decode your voice and thus get your tactical information.
Actually, no. Any broadcasted data can be encrypted because it can simply be treated as a block of digital information. Once encrypted, the data, voice or otherwise, is transformed into a stream of pseudo random noise. If the encryption is strong, as it is in many military applications, then it will take far more than a few minutes for a Beowulf cluster to decrypt it!
But what you said about radio broadcasts being big bomb targets is true, however, and is probably the main impetus behind this optical phone research.
that is tantamount to saying that my flipping by the pages of ads in the front of a magazine is theft.
this is a great way to make me never come to your website again.
Slashdot Mirror
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No matter how you scramble and encode the communication the human voice will always have certain keys that can be easily discerned in a conversation.
An enemy can easily grab and record a radio signal. Then the digitally recorded file can be feed in a Beowulf cluster of cheap computers. That data can within a few minutes can decode your voice and thus get your tactical information.
Actually, no. Any broadcasted data can be encrypted because it can simply be treated as a block of digital information. Once encrypted, the data, voice or otherwise, is transformed into a stream of pseudo random noise. If the encryption is strong, as it is in many military applications, then it will take far more than a few minutes for a Beowulf cluster to decrypt it!
But what you said about radio broadcasts being big bomb targets is true, however, and is probably the main impetus behind this optical phone research.
that is tantamount to saying that my flipping by the pages of ads in the front of a magazine is theft. this is a great way to make me never come to your website again.