Select all that apply

Using the two$-$key encryption method for authentication, we need to be careful about how the keys are used. Select all correct answers regarding key usage in authentication from the list below.

Multiple select question.

To be able to authenticate a trading partner, we must have his or her private key to do so$.$

Only the pair of one user$$s two keys is used for encryption and decryption.

Keys from different users could be used for encryption and decryption purposes.

Public key management is very important because we use public keys to authenticate others in conducting e$-$business.