Hi,

S3 enables encryption of objects at server side (encryption on rest)
see http://docs.aws.amazon.com/AmazonS3/latest/dev/UsingServerSideEncryption.html

Using the aws-sdk-cpp low level there is an option to request uploading file and encrypting data on server side however with the high level API (transferClient upload file method), there is no option to request it. Please add it.

Thanks.

Eliyahu