A company is running an application that uses an Amazon ElastiCache for Redis cluster as a caching layer. A recent security audit revealed that the company has configured encryption at rest for ElastiCache. However, the company did not configure ElastiCache to use encryption in transit. Additionally, users can access the cache without authentication. A solutions architect must make changes to require user authentication and to ensure that the company is using end-to-end encryption. Which solution will meet these requirements?