Question

A system security engineer is evaluation methods to store user passwords in an information system, so what may be the best method to store user passwords and meeting the confidentiality security objective?A. Password-protected fileB. File restricted to one individualC. One-way encrypted fileD. Two-way encrypted file

Answer 1

Answer:

C. One-way encrypted file

Explanation:

One-way encryption or one-way hash function is designed in a manner that it is hard to reverse the process, that is, to find a string that hashes to a given value. A good hash function makes it hard to find two strings that would produce the same hash value.

Answer 2

The 'one-way encrypted file' may be the BEST method to store user passwords and meet the confidentiality security objective (Option C).

• A password refers to one or more words, or a group of characters used to discriminate between authorized users from unauthorized users.

• File encryption is a strategy used to protect data by encrypting it, thereby becoming them more secure.

• In consequence, only the individuals/users that have the correct password (i.e, the encryption key) can read an encrypted file.

In conclusion, the 'one-way encrypted file' may be the BEST method to store user passwords and meet the confidentiality security objective (Option C).

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