if ((GMIME_IS_MULTIPART_ENCRYPTED (part) && node->ctx->crypto->decrypt)
|| (GMIME_IS_MULTIPART_SIGNED (part) && node->ctx->crypto->verify)) {
GMimeContentType *content_type = g_mime_object_get_content_type (part);
const char *protocol = g_mime_content_type_get_parameter (content_type, "protocol");
cryptoctx = notmuch_crypto_get_context (node->ctx->crypto, protocol);
if ((GMIME_IS_MULTIPART_ENCRYPTED (part) && node->ctx->crypto->decrypt)
|| (GMIME_IS_MULTIPART_SIGNED (part) && node->ctx->crypto->verify)) {
GMimeContentType *content_type = g_mime_object_get_content_type (part);
const char *protocol = g_mime_content_type_get_parameter (content_type, "protocol");
cryptoctx = notmuch_crypto_get_context (node->ctx->crypto, protocol);