From 8217c099cedae0617cb56eda728ab485dcb16838 Mon Sep 17 00:00:00 2001
From: Martin Willi <martin@revosec.ch>
Date: Tue, 17 Jul 2012 17:11:01 +0200
Subject: Add a tool to burn hashers

---
 scripts/.gitignore  |  1 +
 scripts/Makefile.am |  4 ++-
 scripts/hash_burn.c | 74 +++++++++++++++++++++++++++++++++++++++++++++++++++++
 3 files changed, 78 insertions(+), 1 deletion(-)
 create mode 100644 scripts/hash_burn.c

(limited to 'scripts')

diff --git a/scripts/.gitignore b/scripts/.gitignore
index 4a715e590..2c8b8008d 100644
--- a/scripts/.gitignore
+++ b/scripts/.gitignore
@@ -8,5 +8,6 @@ thread_analysis
 dh_speed
 pubkey_speed
 crypt_burn
+hash_burn
 tls_test
 fetch
diff --git a/scripts/Makefile.am b/scripts/Makefile.am
index 5f303be17..ea399e84c 100644
--- a/scripts/Makefile.am
+++ b/scripts/Makefile.am
@@ -3,7 +3,7 @@ AM_CFLAGS = \
 -DPLUGINS="\"${scripts_plugins}\""
 
 noinst_PROGRAMS = bin2array bin2sql id2sql key2keyid keyid2sql oid2der \
-	thread_analysis dh_speed pubkey_speed crypt_burn fetch
+	thread_analysis dh_speed pubkey_speed crypt_burn hash_burn fetch
 
 if USE_TLS
   noinst_PROGRAMS += tls_test
@@ -22,6 +22,7 @@ thread_analysis_SOURCES = thread_analysis.c
 dh_speed_SOURCES = dh_speed.c
 pubkey_speed_SOURCES = pubkey_speed.c
 crypt_burn_SOURCES = crypt_burn.c
+hash_burn_SOURCES = hash_burn.c
 fetch_SOURCES = fetch.c
 id2sql_LDADD = $(top_builddir)/src/libstrongswan/libstrongswan.la
 key2keyid_LDADD = $(top_builddir)/src/libstrongswan/libstrongswan.la
@@ -30,6 +31,7 @@ oid2der_LDADD = $(top_builddir)/src/libstrongswan/libstrongswan.la
 dh_speed_LDADD = $(top_builddir)/src/libstrongswan/libstrongswan.la -lrt
 pubkey_speed_LDADD = $(top_builddir)/src/libstrongswan/libstrongswan.la -lrt
 crypt_burn_LDADD = $(top_builddir)/src/libstrongswan/libstrongswan.la
+hash_burn_LDADD = $(top_builddir)/src/libstrongswan/libstrongswan.la
 fetch_LDADD = $(top_builddir)/src/libstrongswan/libstrongswan.la
 
 key2keyid.o :	$(top_builddir)/config.status
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;
+}
-- 
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