Describe exactly why an exhaustive key search

Reference no: EM13713093

Question- At first glance it seems as though an exhaustive key search is possible against an OTP system. Given is a short message, let's say 5 ASCII characters represented by 40 bit, which was encrypted using a 40-bit OTP.

Describe exactly why an exhaustive key search will not succeed even though sufficient computational resources are available. This is a paradox since we know that the OTP is unconditionally secure.

That is, describe why a brute-force attack does not work.

Note: You have to determine the paradox! That means answers such as "The OTP is unconditionally secure and thus a brute-force attack does not work" are not valid.

Reference no: EM13713093

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