Public key infrastructure (pki) uses asymmetric key encryption between parties. the originator encrypts information using the intended recipient's "public" key in order to get confidentiality of the data being sent. the recipients use their own "private" key to decrypt the information. the "infrastructure" of this methodology ensures that:
a. the sender and recipient have reached a mutual agreement on the encryption key exchange that they will use. b. the channels through which the information flows are secure. c. the recipient’s identity can be positively verified by the sender. d. the sender of the message is the only other person with access to the recipient’s private key.

3. ranga ramasesh is the operations manager for a firm that is trying to decide which one of four countries it should research for possible outsourcing providers. the first step is to select a country based on cultural risk factors, which are critical to eventual business success with the provider. ranga has reviewed outsourcing provider directories and found that the four countries in the table that follows have an ample number of providers from which they can choose. to aid in the country selection step, he has enlisted the aid of a cultural expert, john wang, who has provided ratings of the various criteria in the table. the resulting ratings are on a 1 to 10 scale, where 1 is a low risk and 10 is a high risk. john has also determined six criteria weightins: trust, with a weight of 0.3; quality, with 0.2; religious, with 0.1; individualism, with 0.2; time, with 0.1; and uncertainity, with 0.1. using the factor-rating method, which country should ranga select? why? (2 points)