In terms of encrypting data, which of the following is BEST described as a way to safeguard password data by adding random data to it in storage?
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A. B. C. D.A.
The correct answer is A. Using salt.
Salt is a random data added to the input of a one-way function, which is used to safeguard password data by making it more difficult to reverse engineer. It is used in combination with hash functions to make password cracking more difficult.
Hash algorithms (answer B) are one-way functions that take input data and produce a fixed-size output, known as a hash. The output is usually a string of numbers and letters that is unique to the input data. Hash algorithms are used for data integrity, message authentication, and digital signatures, but not for encrypting data.
Elliptical curve (answer C) and PKI (answer D) are cryptographic methods that are used for encryption, but they are not related to safeguarding password data by adding random data to it in storage. Elliptical curve cryptography (ECC) is a type of public-key cryptography that is used for secure key exchange and digital signatures. Public Key Infrastructure (PKI) is a framework of protocols and technologies that is used for digital certificates, digital signatures, and secure communication.
In summary, using salt is the best way to safeguard password data by adding random data to it in storage. Hash algorithms are one-way functions that are used for data integrity, message authentication, and digital signatures. Elliptical curve and PKI are cryptographic methods that are used for encryption and secure communication.