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When accurately executed, the only cryptosystem known to be unbreakable is called: "One-time Pad" (Option D)
<h3>What is a Crypto System?</h3>
The one-time pad is a cryptographic approach that cannot be broken but needs the usage of a single-use pre-shared key that is not less than the message being delivered. A plaintext is coupled with a unique secret key in this manner.
It should be emphasized that in cryptography, a cryptosystem is a collection of cryptographic algorithms that are required to perform a certain security function, such as confidentiality. A cryptosystem is often composed of three algorithms: one just for key generation, one for encrypting, and one for deciphering.
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Full Question:
When correctly implemented, what is the only cryptosystem known to be unbreakable?
A) Transposition cipher
B) Substitution cipher
C) Advanced Encryption Standard
D) One-time Pad
None of the above.
Cell range should be marked as, C5:E9
Answer:
External EMI/RFI
Explanation:
The EMI stands for Electromagnetic interference. It is a radio frequency spectrum which is disturbance that is created by the external source which affects the electric circuit by an electromagnetic induction or conductance. It is also called as the RFI or the radio-frequency interference.
In the context, the three Cat 5e cable were run from the office area to the three computers in the machine shop. The users reports a problem of a very slow network performance and also the switch reports CRC errors. This is mainly caused due to the external EMI or the external RFI.