ABC Corp. is an investment and consulting firm. ABC wants to expand its business operations both in the U.S. and in foreign countries. The company intends to eventually have 10,000 employees in 20 countries. The ABC corporate headquarters is located in Phoenix with eight branch offices in Atlanta, Chicago, Cincinnati, Denver, Los Angeles, Montreal, New York City, Washington, D.C. The North American offices have a total of 5,000 employees who use desktops, laptops, and wireless devices. All offices deal with several sensitive applications. Management from each office shares application information hosted at the corporate office. Based on the security objectives in the following table, design an enterprise encryption strategya public key infrastructure (PKI) that supports internal employees, external business partners, and clients. Include the design and reasoning for using the selected encryption strategy.

Select appropriate encryption algorithms and methods.

Identify and justify the selection of encryption solutions that support internal employees, external business partners, and clients.