COMPUTER FUNDAMENTALS

COMPUTER ETHICS AND SECURITY

CRYPTOGRAPHY AND ENCRYPTION

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Examples of means that provide randomization during the encryption process include:Choose all that apply.
A
Cryptographic nonce
B
Obfuscation
C
Salting
D
Initialization Vector (IV)
E
Shimming
Explanation: 

Detailed explanation-1: -If we need to randomize an encryption scheme, we commonly use an initialization vector or an IV. This is a type of nonce that provides randomization for this encryption process.

Detailed explanation-2: -Definition(s): A binary vector used as the input to initialize the algorithm for the encryption of a plaintext block sequence to increase security by introducing additional cryptographic variance and to synchronize cryptographic equipment.

Detailed explanation-3: -In simple words, encryption protects sensitive data from prying eyes by scrambling ordinary text (plaintext) into a form (ciphertext) that is impossible to read without the proper decryption key. An example of basic encryption is swapping each letter with the one that holds its opposite position in the alphabet.

Detailed explanation-4: -An initialization vector (IV) is an arbitrary number that can be used with a secret key for data encryption to foil cyber attacks. This number, also called a nonce (number used once), is employed only one time in any session to prevent unauthorized decryption of the message by a suspicious or malicious actor.

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