Andreas Auernhammer e34369c860 prepare SSE-S3 metadata parsing for K/V data key store (#8259)
This commit allows the MinIO server to parse the metadata if:
 - either the `X-Minio-Internal-Server-Side-Encryption-S3-Key-Id`
   and the `X-Minio-Internal-Server-Side-Encryption-S3-Kms-Sealed-Key`
   entries are present.
 - or *both* headers are not present.

This is in service to support a K/V data key store.
2019-09-19 04:08:09 +05:30
..