// ErrCustomerKeyMD5Mismatch indicates that the SSE-C key MD5 does not match the
	// computed MD5 sum. This means that the client provided either the wrong key for
	// a certain MD5 checksum or the wrong MD5 for a certain key.
	ErrCustomerKeyMD5Mismatch = Errorf("The provided SSE-C key MD5 does not match the computed MD5 of the SSE-C key")