Security Theorem: Is Perfect Data Security Impossible?

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The discussion centers around the concept of perfect security in data encryption, drawing a parallel to the Entropy theorem, which limits lossless data compression. It raises the question of whether a theorem exists that proves perfect security is unattainable. While some argue that perfect security is impossible, the one-time pad is presented as a method that achieves perfect security, albeit with practical challenges in implementation and usability. This highlights the tension between theoretical security and practical application in data protection.
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Just like there is the Entropy theorem which proves that you can perform lossless compression only upto a certain limit, is there a theorem which proves that perfect Security of data is impossible?
 
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sid_galt said:
Just like there is the Entropy theorem which proves that you can perform lossless compression only upto a certain limit, is there a theorem which proves that perfect Security of data is impossible?

Perfect security is possible though... one-time pads (though it is not eligant and easy to use)
 
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