Select a correct statement regarding encryption methods?
A)To use symmetric-key encryption,each user needs two different keys.
B)Most companies prefer using symmetric-key encryption than asymmetric-key encryption method.
C)Both symmetric-key and asymmetric-key encryption methods require the involvement of a certificate authority.
D)When conducting e-business,most companies use both symmetric-key and asymmetric-key encryption methods.

Question

Quizplus · Accepted Answer

When conducting e-business, most companies use a combination of symmetric-key and asymmetric-key encryption methods to ensure the security of their data. Symmetric-key encryption is used for encrypting large amounts of data, whereas asymmetric-key encryption is used for exchanging keys and verifying the identity of the parties involved. A certificate authority is only required for asymmetric-key encryption, not symmetric-key encryption. Hence option A and C are incorrect. While some companies may prefer symmetric-key encryption, this choice is not universal, and both methods have their uses in different scenarios. Therefore option B is incorrect.

Select a Correct Statement Regarding Encryption Methods