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-rw-r--r--libtommath/mtest/mtest.c304
1 files changed, 304 insertions, 0 deletions
diff --git a/libtommath/mtest/mtest.c b/libtommath/mtest/mtest.c
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+/* makes a bignum test harness with NUM tests per operation
+ *
+ * the output is made in the following format [one parameter per line]
+
+operation
+operand1
+operand2
+[... operandN]
+result1
+result2
+[... resultN]
+
+So for example "a * b mod n" would be
+
+mulmod
+a
+b
+n
+a*b mod n
+
+e.g. if a=3, b=4 n=11 then
+
+mulmod
+3
+4
+11
+1
+
+ */
+
+#ifdef MP_8BIT
+#define THE_MASK 127
+#else
+#define THE_MASK 32767
+#endif
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <time.h>
+#include "mpi.c"
+
+FILE *rng;
+
+void rand_num(mp_int *a)
+{
+ int n, size;
+ unsigned char buf[2048];
+
+ size = 1 + ((fgetc(rng)<<8) + fgetc(rng)) % 101;
+ buf[0] = (fgetc(rng)&1)?1:0;
+ fread(buf+1, 1, size, rng);
+ while (buf[1] == 0) buf[1] = fgetc(rng);
+ mp_read_raw(a, buf, 1+size);
+}
+
+void rand_num2(mp_int *a)
+{
+ int n, size;
+ unsigned char buf[2048];
+
+ size = 10 + ((fgetc(rng)<<8) + fgetc(rng)) % 101;
+ buf[0] = (fgetc(rng)&1)?1:0;
+ fread(buf+1, 1, size, rng);
+ while (buf[1] == 0) buf[1] = fgetc(rng);
+ mp_read_raw(a, buf, 1+size);
+}
+
+#define mp_to64(a, b) mp_toradix(a, b, 64)
+
+int main(void)
+{
+ int n, tmp;
+ mp_int a, b, c, d, e;
+ clock_t t1;
+ char buf[4096];
+
+ mp_init(&a);
+ mp_init(&b);
+ mp_init(&c);
+ mp_init(&d);
+ mp_init(&e);
+
+
+ /* initial (2^n - 1)^2 testing, makes sure the comba multiplier works [it has the new carry code] */
+/*
+ mp_set(&a, 1);
+ for (n = 1; n < 8192; n++) {
+ mp_mul(&a, &a, &c);
+ printf("mul\n");
+ mp_to64(&a, buf);
+ printf("%s\n%s\n", buf, buf);
+ mp_to64(&c, buf);
+ printf("%s\n", buf);
+
+ mp_add_d(&a, 1, &a);
+ mp_mul_2(&a, &a);
+ mp_sub_d(&a, 1, &a);
+ }
+*/
+
+ rng = fopen("/dev/urandom", "rb");
+ if (rng == NULL) {
+ rng = fopen("/dev/random", "rb");
+ if (rng == NULL) {
+ fprintf(stderr, "\nWarning: stdin used as random source\n\n");
+ rng = stdin;
+ }
+ }
+
+ t1 = clock();
+ for (;;) {
+#if 0
+ if (clock() - t1 > CLOCKS_PER_SEC) {
+ sleep(2);
+ t1 = clock();
+ }
+#endif
+ n = fgetc(rng) % 15;
+
+ if (n == 0) {
+ /* add tests */
+ rand_num(&a);
+ rand_num(&b);
+ mp_add(&a, &b, &c);
+ printf("add\n");
+ mp_to64(&a, buf);
+ printf("%s\n", buf);
+ mp_to64(&b, buf);
+ printf("%s\n", buf);
+ mp_to64(&c, buf);
+ printf("%s\n", buf);
+ } else if (n == 1) {
+ /* sub tests */
+ rand_num(&a);
+ rand_num(&b);
+ mp_sub(&a, &b, &c);
+ printf("sub\n");
+ mp_to64(&a, buf);
+ printf("%s\n", buf);
+ mp_to64(&b, buf);
+ printf("%s\n", buf);
+ mp_to64(&c, buf);
+ printf("%s\n", buf);
+ } else if (n == 2) {
+ /* mul tests */
+ rand_num(&a);
+ rand_num(&b);
+ mp_mul(&a, &b, &c);
+ printf("mul\n");
+ mp_to64(&a, buf);
+ printf("%s\n", buf);
+ mp_to64(&b, buf);
+ printf("%s\n", buf);
+ mp_to64(&c, buf);
+ printf("%s\n", buf);
+ } else if (n == 3) {
+ /* div tests */
+ rand_num(&a);
+ rand_num(&b);
+ mp_div(&a, &b, &c, &d);
+ printf("div\n");
+ mp_to64(&a, buf);
+ printf("%s\n", buf);
+ mp_to64(&b, buf);
+ printf("%s\n", buf);
+ mp_to64(&c, buf);
+ printf("%s\n", buf);
+ mp_to64(&d, buf);
+ printf("%s\n", buf);
+ } else if (n == 4) {
+ /* sqr tests */
+ rand_num(&a);
+ mp_sqr(&a, &b);
+ printf("sqr\n");
+ mp_to64(&a, buf);
+ printf("%s\n", buf);
+ mp_to64(&b, buf);
+ printf("%s\n", buf);
+ } else if (n == 5) {
+ /* mul_2d test */
+ rand_num(&a);
+ mp_copy(&a, &b);
+ n = fgetc(rng) & 63;
+ mp_mul_2d(&b, n, &b);
+ mp_to64(&a, buf);
+ printf("mul2d\n");
+ printf("%s\n", buf);
+ printf("%d\n", n);
+ mp_to64(&b, buf);
+ printf("%s\n", buf);
+ } else if (n == 6) {
+ /* div_2d test */
+ rand_num(&a);
+ mp_copy(&a, &b);
+ n = fgetc(rng) & 63;
+ mp_div_2d(&b, n, &b, NULL);
+ mp_to64(&a, buf);
+ printf("div2d\n");
+ printf("%s\n", buf);
+ printf("%d\n", n);
+ mp_to64(&b, buf);
+ printf("%s\n", buf);
+ } else if (n == 7) {
+ /* gcd test */
+ rand_num(&a);
+ rand_num(&b);
+ a.sign = MP_ZPOS;
+ b.sign = MP_ZPOS;
+ mp_gcd(&a, &b, &c);
+ printf("gcd\n");
+ mp_to64(&a, buf);
+ printf("%s\n", buf);
+ mp_to64(&b, buf);
+ printf("%s\n", buf);
+ mp_to64(&c, buf);
+ printf("%s\n", buf);
+ } else if (n == 8) {
+ /* lcm test */
+ rand_num(&a);
+ rand_num(&b);
+ a.sign = MP_ZPOS;
+ b.sign = MP_ZPOS;
+ mp_lcm(&a, &b, &c);
+ printf("lcm\n");
+ mp_to64(&a, buf);
+ printf("%s\n", buf);
+ mp_to64(&b, buf);
+ printf("%s\n", buf);
+ mp_to64(&c, buf);
+ printf("%s\n", buf);
+ } else if (n == 9) {
+ /* exptmod test */
+ rand_num2(&a);
+ rand_num2(&b);
+ rand_num2(&c);
+// if (c.dp[0]&1) mp_add_d(&c, 1, &c);
+ a.sign = b.sign = c.sign = 0;
+ mp_exptmod(&a, &b, &c, &d);
+ printf("expt\n");
+ mp_to64(&a, buf);
+ printf("%s\n", buf);
+ mp_to64(&b, buf);
+ printf("%s\n", buf);
+ mp_to64(&c, buf);
+ printf("%s\n", buf);
+ mp_to64(&d, buf);
+ printf("%s\n", buf);
+ } else if (n == 10) {
+ /* invmod test */
+ rand_num2(&a);
+ rand_num2(&b);
+ b.sign = MP_ZPOS;
+ a.sign = MP_ZPOS;
+ mp_gcd(&a, &b, &c);
+ if (mp_cmp_d(&c, 1) != 0) continue;
+ if (mp_cmp_d(&b, 1) == 0) continue;
+ mp_invmod(&a, &b, &c);
+ printf("invmod\n");
+ mp_to64(&a, buf);
+ printf("%s\n", buf);
+ mp_to64(&b, buf);
+ printf("%s\n", buf);
+ mp_to64(&c, buf);
+ printf("%s\n", buf);
+ } else if (n == 11) {
+ rand_num(&a);
+ mp_mul_2(&a, &a);
+ mp_div_2(&a, &b);
+ printf("div2\n");
+ mp_to64(&a, buf);
+ printf("%s\n", buf);
+ mp_to64(&b, buf);
+ printf("%s\n", buf);
+ } else if (n == 12) {
+ rand_num2(&a);
+ mp_mul_2(&a, &b);
+ printf("mul2\n");
+ mp_to64(&a, buf);
+ printf("%s\n", buf);
+ mp_to64(&b, buf);
+ printf("%s\n", buf);
+ } else if (n == 13) {
+ rand_num2(&a);
+ tmp = abs(rand()) & THE_MASK;
+ mp_add_d(&a, tmp, &b);
+ printf("add_d\n");
+ mp_to64(&a, buf);
+ printf("%s\n%d\n", buf, tmp);
+ mp_to64(&b, buf);
+ printf("%s\n", buf);
+ } else if (n == 14) {
+ rand_num2(&a);
+ tmp = abs(rand()) & THE_MASK;
+ mp_sub_d(&a, tmp, &b);
+ printf("sub_d\n");
+ mp_to64(&a, buf);
+ printf("%s\n%d\n", buf, tmp);
+ mp_to64(&b, buf);
+ printf("%s\n", buf);
+ }
+ }
+ fclose(rng);
+ return 0;
+}
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