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diff --git a/meta/recipes-devtools/shasum/files/mhash_sha256.h b/meta/recipes-devtools/shasum/files/mhash_sha256.h
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+/* sha.h
+ *
+ * The sha1 and sha256 hash functions.
+ */
+
+/* nettle, low-level cryptographics library
+ *
+ * Copyright (C) 2001 Niels Möller
+ *
+ * The nettle library is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU Lesser General Public License as published by
+ * the Free Software Foundation; either version 2.1 of the License, or (at your
+ * option) any later version.
+ *
+ * The nettle library is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
+ * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
+ * License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public License
+ * along with the nettle library; see the file COPYING.LIB. If not, write to
+ * the Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston,
+ * MA 02111-1307, USA.
+ */
+
+#ifndef NETTLE_SHA_H_INCLUDED
+#define NETTLE_SHA_H_INCLUDED
+
+#include <inttypes.h>
+
+typedef uint32_t word32;
+typedef unsigned char byte;
+
+
+/* SHA256 */
+
+#define SHA256_DIGEST_SIZE 32
+#define SHA256_DATA_SIZE 64
+
+/* Digest is kept internally as 8 32-bit words. */
+#define _SHA256_DIGEST_LENGTH 8
+
+typedef struct sha256_ctx
+{
+ word32 state[_SHA256_DIGEST_LENGTH]; /* State variables */
+ word32 count_low, count_high; /* 64-bit block count */
+ byte block[SHA256_DATA_SIZE]; /* SHA256 data buffer */
+ unsigned int index; /* index into buffer */
+} SHA256_CTX;
+
+void
+sha256_init(struct sha256_ctx *ctx);
+
+void
+sha256_update(struct sha256_ctx *ctx, const byte *data, unsigned length);
+
+void
+sha256_final(struct sha256_ctx *ctx);
+
+void
+sha256_digest(const struct sha256_ctx *ctx, byte *digest);
+
+
+#endif /* NETTLE_SHA_H_INCLUDED */