func ParseSSECopyCustomerRequest(h http.Header, metadata map[string]string) (key []byte, err error) {
	if crypto.S3.IsEncrypted(metadata) && crypto.SSECopy.IsRequested(h) {
		return nil, crypto.ErrIncompatibleEncryptionMethod
	}
	k, err := crypto.SSECopy.ParseHTTP(h)
	return k[:], err
}

// ParseSSECustomerRequest parses the SSE-C header fields of the provided request.

	if _, ok := crypto.IsEncrypted(srcInfo.UserDefined); !ok && crypto.SSECopy.IsRequested(r.Header) {
		writeErrorResponse(ctx, w, toAPIError(ctx, errInvalidEncryptionParameters), r.URL)
		return
	}
	// Encryption parameters not present for this object.
	if crypto.SSEC.IsEncrypted(srcInfo.UserDefined) && !crypto.SSECopy.IsRequested(r.Header) && r.Header.Get(xhttp.MinIOSourceReplicationRequest) != "true" {

			writeErrorResponse(ctx, w, errorCodes.ToAPIErr(ErrInvalidStorageClass), r.URL)
			return
		}
	}

	encMetadata := map[string]string{}

	if crypto.Requested(r.Header) {
		if crypto.SSECopy.IsRequested(r.Header) {
			writeErrorResponse(ctx, w, toAPIError(ctx, errInvalidEncryptionParameters), r.URL)
			return
		}

		if crypto.SSEC.IsRequested(r.Header) && crypto.S3.IsRequested(r.Header) {

		writeErrorResponseHeadersOnly(w, toAPIError(ctx, err))
		return
	}
	opts.WantChecksum = checksum

	fanOutOpts := fanOutOptions{Checksum: checksum}
	if crypto.Requested(formValues) {
		if crypto.SSECopy.IsRequested(r.Header) {
			writeErrorResponse(ctx, w, toAPIError(ctx, errInvalidEncryptionParameters), r.URL)
			return
		}

		if crypto.SSEC.IsRequested(r.Header) && crypto.S3.IsRequested(r.Header) {