Hash is define as

technology security

  1. A function that encrypts the data provided.

  2. A function that transforms a string of characters into a number known as the message digest .

  3. A function that uses MD5 algorithm with private key to decrypt

  4. All the above

Show answer
Correct Option: B
Explanation:

To answer this question, the user needs to understand the concept of hash functions and their purpose in cryptography.

Option A is incorrect because hash functions are not used for encryption; rather, they are used for creating fixed-size and unique representations of input data.

Option B is correct. A hash function takes an input (usually a string of characters) and produces a fixed-size output, called a message digest or hash value. This value is typically much smaller than the input, making it easier to store and compare. Hash functions are used for a variety of purposes, including data integrity checking, password storage, and digital signatures.

Option C is incorrect because hash functions are one-way functions, meaning that they cannot be easily reversed. They are not used for decryption.

Therefore, the correct answer is:

The Answer is: B. A function that transforms a string of characters into a number known as the message digest.

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