Make s3 sync support client-side encryption

[per-oestergaard]

Hi. s3 sync is really great. However, I want to use it for backup and for that I need client-side encryption. If I had that, s3 sync would cover my needs and I did not have to complicate matters involving other software. Furthermore, I would know how to restore data from any platform; I.E. not be dependent upon the lifecycle of the backup software.

I envision --cse-c AES256 and --cse-c-key similar to --sse-c and --sse-c-key.

For completeness, I guess --cse-c-copy-source and --cse-c-copy-source-key should be added as well.

[stealthycoin]

This is already a feature request for this so I am going to close this issue:
#1686
uservoice

[per-oestergaard]

This seem to be back-and-forth between github and uservoice.
Anyone that can provide a status on this?