English, asked by ajishnak3, 2 months ago

Differentiate between computationally secure cipher and unconditionally secure
cipher

Answers

Answered by iAmHoBiSpRiTexD
5

Answer:

Unconditionally secure = no amount of computer power can recover the plain text given the cipher text. Computationally secure = The encryption algorithm has been proven through mathematical analysis to resist any “shortcuts” which allow recovery of plain text from the cipher text.

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Answered by crkavya123
0

Answer:

Everyone requires online access to knowledge in the current world. There are many different media, including optical fiber, Ethernet, and wireless media, via which data may be sent.

Communication ciphers are made by transforming the original communications using a key in order to prevent the data from falling into the hands of any hacker in between.

Explanation:

Differentiate between computationally secure cipher and unconditionally secure

cipher

If it would be more expensive to decipher the cipher than the value of the encrypted data, the encryption technique is said to be computationally secure.

The amount of time needed to decipher the encryption is longer than the information's useful lifetime.

No matter how much cipher text is accessible, an encryption system is considered unconditionally secure if the cipher text it produces cannot be used to uniquely identify the matching plaintext.

A "computationally secure cipher" is a type of encryption technique in which the cost of cracking the secure cipher is greater than the value of the information being encrypted, and the time required to crack the cipher is longer than the useful lifetime of the information.

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