Add a tool to burn hashers

1 files changed, 74 insertions, 0 deletions

diff --git a/scripts/hash_burn.c b/scripts/hash_burn.c
new file mode 100644
index 000000000..e616d6d5a
--- /dev/null
+++ b/scripts/hash_burn.c
@@ -0,0 +1,74 @@
+/*
+ * Copyright (C) 2012 Martin Willi
+ * Copyright (C) 2012 revosec AG
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; either version 2 of the License, or (at your
+ * option) any later version.  See <http://www.fsf.org/copyleft/gpl.txt>.
+ *
+ * This program 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 General Public License
+ * for more details.
+ */
+
+#include <stdio.h>
+#include <library.h>
+
+
+
+int main(int argc, char *argv[])
+{
+	hash_algorithm_t alg;
+	hasher_t *hasher;
+	char buffer[1024];
+	int limit = 0, i = 0;
+
+	library_init(NULL);
+	lib->plugins->load(lib->plugins, NULL, PLUGINS);
+	atexit(library_deinit);
+
+	printf("loaded: %s\n", PLUGINS);
+
+	memset(buffer, 0x12, sizeof(buffer));
+
+	if (argc < 2)
+	{
+		fprintf(stderr, "usage: %s <algorithm>!\n", argv[0]);
+		return 1;
+	}
+	if (argc > 2)
+	{
+		limit = atoi(argv[2]);
+	}
+
+	alg = enum_from_name(hash_algorithm_short_names, argv[1]);
+	if (alg == -1)
+	{
+		fprintf(stderr, "unknown hash algorthm: %s\n", argv[1]);
+		return 1;
+	}
+	hasher = lib->crypto->create_hasher(lib->crypto, alg);
+	if (!hasher)
+	{
+		fprintf(stderr, "hash algorthm not supported: %N\n",
+				hash_algorithm_names, alg);
+		return 1;
+	}
+
+	while (TRUE)
+	{
+		if (!hasher->get_hash(hasher, chunk_from_thing(buffer), buffer))
+		{
+			fprintf(stderr, "hashing failed!\n");
+			return 1;
+		}
+		if (limit && ++i == limit)
+		{
+			break;
+		}
+	}
+	hasher->destroy(hasher);
+	return 0;
+}