Commit 21f197b9 authored by Niels Möller's avatar Niels Möller

Test for memeql_sec.

parent 1a0a8dce
......@@ -51,6 +51,10 @@
* memops.h: New header file, generalizing memxor.h.
* testsuite/memeql-test.c (test_main): New test case.
(memeql_sec_for_test): Wrapper to get valgrind to check for
side-channel silence.
2016-08-29 Niels Möller <nisse@lysator.liu.se>
* sexp-format.c (strlen_u8): New helper function.
......
......@@ -46,6 +46,9 @@ md5-test$(EXEEXT): md5-test.$(OBJEXT)
md5-compat-test$(EXEEXT): md5-compat-test.$(OBJEXT)
$(LINK) md5-compat-test.$(OBJEXT) $(TEST_OBJS) -o md5-compat-test$(EXEEXT)
memeql-test$(EXEEXT): memeql-test.$(OBJEXT)
$(LINK) memeql-test.$(OBJEXT) $(TEST_OBJS) -o memeql-test$(EXEEXT)
memxor-test$(EXEEXT): memxor-test.$(OBJEXT)
$(LINK) memxor-test.$(OBJEXT) $(TEST_OBJS) -o memxor-test$(EXEEXT)
......
......@@ -16,7 +16,7 @@ TS_NETTLE_SOURCES = aes-test.c arcfour-test.c arctwo-test.c \
camellia-test.c chacha-test.c \
des-test.c des3-test.c des-compat-test.c \
md2-test.c md4-test.c md5-test.c md5-compat-test.c \
memxor-test.c gosthash94-test.c \
memeql-test.c memxor-test.c gosthash94-test.c \
ripemd160-test.c \
salsa20-test.c \
sha1-test.c sha224-test.c sha256-test.c \
......
#include "testutils.h"
#include "knuth-lfib.h"
#include "memops.h"
#if HAVE_VALGRIND_MEMCHECK_H
# include <valgrind/memcheck.h>
static int
memeql_sec_for_test(const void *a, const void *b, size_t n)
{
int res;
/* Makes valgrind trigger on any branches depending on the input
data. */
VALGRIND_MAKE_MEM_UNDEFINED (a, n);
VALGRIND_MAKE_MEM_UNDEFINED (b, n);
res = memeql_sec (a, b, n);
VALGRIND_MAKE_MEM_DEFINED (&res, sizeof(res));
return res;
}
#else
#define memeql_sec_for_test memeql_sec
#endif
#define MAX_SIZE 50
void
test_main(void)
{
uint8_t orig[MAX_SIZE];
uint8_t a[MAX_SIZE];
uint8_t b[MAX_SIZE];
struct knuth_lfib_ctx random_ctx;
knuth_lfib_init (&random_ctx, 11);
size_t size;
for (size = 0; size < 50; size++)
{
size_t i;
uint8_t bit;
knuth_lfib_random (&random_ctx, size, orig);
memcpy (a, orig, size);
memcpy (b, orig, size);
ASSERT (memeql_sec_for_test (a, b, size));
for (i = 0; i < size; i++)
for (bit = 0x80; bit; bit >>= 1)
{
b[i] = orig[i] ^ bit;
ASSERT (!memeql_sec_for_test (a, b, size));
b[i] = orig[i];
}
}
}
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