--- /dev/null
+/*
+ * Copyright (c) 2013, Andreas Oetken.
+ *
+ * SPDX-License-Identifier: GPL-2.0+
+*/
+
+#ifndef _RSA_CHECKSUM_H
+#define _RSA_CHECKSUM_H
+
+#include <errno.h>
+#include <image.h>
+#include <u-boot/sha1.h>
+#include <u-boot/sha256.h>
+
+extern const uint8_t padding_sha256_rsa4096[];
+extern const uint8_t padding_sha256_rsa2048[];
+extern const uint8_t padding_sha1_rsa2048[];
+
+void sha256_calculate(const struct image_region region[], int region_count,
+ uint8_t *checksum);
+void sha1_calculate(const struct image_region region[], int region_count,
+ uint8_t *checksum);
+
+#endif