SSL support in AWS ElastiCache

Question

We would like to use AWS ElastiCache for our application, and we have a strict requirement that all data should be encrypted in transit.

I was trying to find out whether ElastiCache access is done using SSL but cannot get a definitive answer from Amazon documentation. It is possible to set a policy option aws:SecureTransport to True when setting security for ElasticCache cluster, but I am not sure if it is supported for ElastiCache. AWS documentation says that this option is ignored e.g. for S3 as S3 always uses SSL.

Answer 1

ElastiCache now supports TLS encryption in transit.

https://docs.aws.amazon.com/AmazonElastiCache/latest/red-ug/in-transit-encryption.html

Answer 2

This is better suited as a comment, but I don't have enough points.

My company spoke with AWS customer service, and they confirmed it isn't supported for ElastiCache; the sslEnabled option you're referring to is indeed ignored. It's only in there because it's inherited.