Exemple #1
0
int
test_div(BIO *bp, BN_CTX *ctx)
{
	BIGNUM a, b,c, d, e;
	int i;
	int rc = 1;

	BN_init(&a);
	BN_init(&b);
	BN_init(&c);
	BN_init(&d);
	BN_init(&e);

	for (i = 0; i < num0 + num1; i++) {
		if (i < num1) {
			BN_bntest_rand(&a, 400, 0, 0);
			BN_copy(&b, &a);
			BN_lshift(&a, &a, i);
			BN_add_word(&a, i);
		} else
			BN_bntest_rand(&b, 50 + 3*(i - num1), 0, 0);
		a.neg = rand_neg();
		b.neg = rand_neg();
		BN_div(&d, &c, &a, &b, ctx);
		if (bp != NULL) {
			if (!results) {
				BN_print(bp, &a);
				BIO_puts(bp, " / ");
				BN_print(bp, &b);
				BIO_puts(bp, " - ");
			}
			BN_print(bp, &d);
			BIO_puts(bp, "\n");

			if (!results) {
				BN_print(bp, &a);
				BIO_puts(bp, " % ");
				BN_print(bp, &b);
				BIO_puts(bp, " - ");
			}
			BN_print(bp, &c);
			BIO_puts(bp, "\n");
		}
		BN_mul(&e, &d, &b, ctx);
		BN_add(&d, &e, &c);
		BN_sub(&d, &d, &a);
		if (!BN_is_zero(&d)) {
			fprintf(stderr, "Division test failed!\n");
			rc = 0;
			break;
		}
	}
	BN_free(&a);
	BN_free(&b);
	BN_free(&c);
	BN_free(&d);
	BN_free(&e);
	return (rc);
}
Exemple #2
0
int test_div(BIO *bp, BN_CTX *ctx)
{
    BIGNUM *a, *b, *c, *d, *e;
    int i;

    a = BN_new();
    b = BN_new();
    c = BN_new();
    d = BN_new();
    e = BN_new();

    for (i = 0; i < num0 + num1; i++) {
        if (i < num1) {
            BN_bntest_rand(a, 400, 0, 0);
            BN_copy(b, a);
            BN_lshift(a, a, i);
            BN_add_word(a, i);
        } else
            BN_bntest_rand(b, 50 + 3 * (i - num1), 0, 0);
        a->neg = rand_neg();
        b->neg = rand_neg();
        BN_div(d, c, a, b, ctx);
        if (bp != NULL) {
            if (!results) {
                BN_print(bp, a);
                BIO_puts(bp, " / ");
                BN_print(bp, b);
                BIO_puts(bp, " - ");
            }
            BN_print(bp, d);
            BIO_puts(bp, "\n");

            if (!results) {
                BN_print(bp, a);
                BIO_puts(bp, " % ");
                BN_print(bp, b);
                BIO_puts(bp, " - ");
            }
            BN_print(bp, c);
            BIO_puts(bp, "\n");
        }
        BN_mul(e, d, b, ctx);
        BN_add(d, e, c);
        BN_sub(d, d, a);
        if (!BN_is_zero(d)) {
            fprintf(stderr, "Division test failed!\n");
            return 0;
        }
    }
    BN_free(a);
    BN_free(b);
    BN_free(c);
    BN_free(d);
    BN_free(e);
    return (1);
}
Exemple #3
0
int test_mul(BIO *bp)
	{
	BIGNUM a,b,c,d,e;
	int i;
	BN_CTX *ctx;

	ctx = BN_CTX_new();
	if (ctx == NULL) EXIT(1);
	
	BN_init(&a);
	BN_init(&b);
	BN_init(&c);
	BN_init(&d);
	BN_init(&e);

	for (i=0; i<num0+num1; i++)
		{
		if (i <= num1)
			{
			BN_bntest_rand(&a,100,0,0);
			BN_bntest_rand(&b,100,0,0);
			}
		else
			BN_bntest_rand(&b,i-num1,0,0);
		a.neg=rand_neg();
		b.neg=rand_neg();
		BN_mul(&c,&a,&b,ctx);
		if (bp != NULL)
			{
			if (!results)
				{
				BN_print(bp,&a);
				BIO_puts(bp," * ");
				BN_print(bp,&b);
				BIO_puts(bp," - ");
				}
			BN_print(bp,&c);
			BIO_puts(bp,"\n");
			}
		BN_div(&d,&e,&c,&a,ctx);
		BN_sub(&d,&d,&b);
		if(!BN_is_zero(&d) || !BN_is_zero(&e))
		    {
		    fprintf(stderr,"Multiplication test failed!\n");
		    return 0;
		    }
		}
	BN_free(&a);
	BN_free(&b);
	BN_free(&c);
	BN_free(&d);
	BN_free(&e);
	BN_CTX_free(ctx);
	return(1);
	}
Exemple #4
0
int test_mod_exp(BIO *bp, BN_CTX *ctx)
	{
	BIGNUM *a,*b,*c,*d,*e;
	int i;

	a=BN_new();
	b=BN_new();
	c=BN_new();
	d=BN_new();
	e=BN_new();

	BN_bntest_rand(c,30,0,1); /* must be odd for montgomery */
	for (i=0; i<num2; i++)
		{
		BN_bntest_rand(a,20+i*5,0,0); /**/
		BN_bntest_rand(b,2+i,0,0); /**/

		if (!BN_mod_exp(d,a,b,c,ctx))
			return(00);

		if (bp != NULL)
			{
			if (!results)
				{
				BN_print(bp,a);
				BIO_puts(bp," ^ ");
				BN_print(bp,b);
				BIO_puts(bp," % ");
				BN_print(bp,c);
				BIO_puts(bp," - ");
				}
			BN_print(bp,d);
			BIO_puts(bp,"\n");
			}
		BN_exp(e,a,b,ctx);
		BN_sub(e,e,d);
		BN_div(a,b,e,c,ctx);
		if(!BN_is_zero(b))
		    {
		    fprintf(stderr,"Modulo exponentiation test failed!\n");
		    return 0;
		    }
		}
	BN_free(a);
	BN_free(b);
	BN_free(c);
	BN_free(d);
	BN_free(e);
	return(1);
	}
Exemple #5
0
int test_sub(BIO *bp)
	{
	BIGNUM a,b,c;
	int i;

	BN_init(&a);
	BN_init(&b);
	BN_init(&c);

	for (i=0; i<num0+num1; i++)
		{
		if (i < num1)
			{
			BN_bntest_rand(&a,512,0,0);
			BN_copy(&b,&a);
			if (BN_set_bit(&a,i)==0) return(0);
			BN_add_word(&b,i);
			}
		else
			{
			BN_bntest_rand(&b,400+i-num1,0,0);
			a.neg=rand_neg();
			b.neg=rand_neg();
			}
		BN_sub(&c,&a,&b);
		if (bp != NULL)
			{
			if (!results)
				{
				BN_print(bp,&a);
				BIO_puts(bp," - ");
				BN_print(bp,&b);
				BIO_puts(bp," - ");
				}
			BN_print(bp,&c);
			BIO_puts(bp,"\n");
			}
		BN_add(&c,&c,&b);
		BN_sub(&c,&c,&a);
		if(!BN_is_zero(&c))
		    {
		    fprintf(stderr,"Subtract test failed!\n");
		    return 0;
		    }
		}
	BN_free(&a);
	BN_free(&b);
	BN_free(&c);
	return(1);
	}
Exemple #6
0
int test_exp(BIO *bp, BN_CTX *ctx)
	{
	BIGNUM *a,*b,*d,*e,*one;
	int i;

	a=BN_new();
	b=BN_new();
	d=BN_new();
	e=BN_new();
	one=BN_new();
	BN_one(one);

	for (i=0; i<num2; i++)
		{
		BN_bntest_rand(a,20+i*5,0,0); /**/
		BN_bntest_rand(b,2+i,0,0); /**/

		if (!BN_exp(d,a,b,ctx))
			return(00);

		if (bp != NULL)
			{
			if (!results)
				{
				BN_print(bp,a);
				BIO_puts(bp," ^ ");
				BN_print(bp,b);
				BIO_puts(bp," - ");
				}
			BN_print(bp,d);
			BIO_puts(bp,"\n");
			}
		BN_one(e);
		for( ; !BN_is_zero(b) ; BN_sub(b,b,one))
		    BN_mul(e,e,a,ctx);
		BN_sub(e,e,d);
		if(!BN_is_zero(e))
		    {
		    fprintf(stderr,"Exponentiation test failed!\n");
		    return 0;
		    }
		}
	BN_free(a);
	BN_free(b);
	BN_free(d);
	BN_free(e);
	BN_free(one);
	return(1);
	}
Exemple #7
0
int test_mod(BIO *bp, BN_CTX *ctx)
	{
	BIGNUM *a,*b,*c,*d,*e;
	int i;

	a=BN_new();
	b=BN_new();
	c=BN_new();
	d=BN_new();
	e=BN_new();

	BN_bntest_rand(a,1024,0,0); /**/
	for (i=0; i<num0; i++)
		{
		BN_bntest_rand(b,450+i*10,0,0); /**/
		a->neg=rand_neg();
		b->neg=rand_neg();
		BN_mod(c,a,b,ctx);/**/
		if (bp != NULL)
			{
			if (!results)
				{
				BN_print(bp,a);
				BIO_puts(bp," % ");
				BN_print(bp,b);
				BIO_puts(bp," - ");
				}
			BN_print(bp,c);
			BIO_puts(bp,"\n");
			}
		BN_div(d,e,a,b,ctx);
		BN_sub(e,e,c);
		if(!BN_is_zero(e))
		    {
		    fprintf(stderr,"Modulo test failed!\n");
		    return 0;
		    }
		}
	BN_free(a);
	BN_free(b);
	BN_free(c);
	BN_free(d);
	BN_free(e);
	return(1);
	}
Exemple #8
0
int test_lshift(BIO *bp,BN_CTX *ctx,BIGNUM *a_)
	{
	BIGNUM *a,*b,*c,*d;
	int i;

	b=BN_new();
	c=BN_new();
	d=BN_new();
	BN_one(c);

	if(a_)
	    a=a_;
	else
	    {
	    a=BN_new();
	    BN_bntest_rand(a,200,0,0); /**/
	    a->neg=rand_neg();
	    }
	for (i=0; i<num0; i++)
		{
		BN_lshift(b,a,i+1);
		BN_add(c,c,c);
		if (bp != NULL)
			{
			if (!results)
				{
				BN_print(bp,a);
				BIO_puts(bp," * ");
				BN_print(bp,c);
				BIO_puts(bp," - ");
				}
			BN_print(bp,b);
			BIO_puts(bp,"\n");
			}
		BN_mul(d,a,c,ctx);
		BN_sub(d,d,b);
		if(!BN_is_zero(d))
		    {
		    fprintf(stderr,"Left shift test failed!\n");
		    fprintf(stderr,"a=");
		    BN_print_fp(stderr,a);
		    fprintf(stderr,"\nb=");
		    BN_print_fp(stderr,b);
		    fprintf(stderr,"\nc=");
		    BN_print_fp(stderr,c);
		    fprintf(stderr,"\nd=");
		    BN_print_fp(stderr,d);
		    fprintf(stderr,"\n");
		    return 0;
		    }
		}
	BN_free(a);
	BN_free(b);
	BN_free(c);
	BN_free(d);
	return(1);
	}
Exemple #9
0
int test_sub(BIO *bp)
{
    BIGNUM *a, *b, *c;
    int i;

    a = BN_new();
    b = BN_new();
    c = BN_new();

    for (i = 0; i < num0 + num1; i++) {
        if (i < num1) {
            BN_bntest_rand(a, 512, 0, 0);
            BN_copy(b, a);
            if (BN_set_bit(a, i) == 0)
                return (0);
            BN_add_word(b, i);
        } else {
            BN_bntest_rand(b, 400 + i - num1, 0, 0);
            a->neg = rand_neg();
            b->neg = rand_neg();
        }
        BN_sub(c, a, b);
        if (bp != NULL) {
            if (!results) {
                BN_print(bp, a);
                BIO_puts(bp, " - ");
                BN_print(bp, b);
                BIO_puts(bp, " - ");
            }
            BN_print(bp, c);
            BIO_puts(bp, "\n");
        }
        BN_add(c, c, b);
        BN_sub(c, c, a);
        if (!BN_is_zero(c)) {
            fprintf(stderr, "Subtract test failed!\n");
            return 0;
        }
    }
    BN_free(a);
    BN_free(b);
    BN_free(c);
    return (1);
}
Exemple #10
0
int test_add(BIO *bp)
	{
	BIGNUM a,b,c;
	int i;

	BN_init(&a);
	BN_init(&b);
	BN_init(&c);

	BN_bntest_rand(&a,512,0,0);
	for (i=0; i<num0; i++)
		{
		BN_bntest_rand(&b,450+i,0,0);
		a.neg=rand_neg();
		b.neg=rand_neg();
		BN_add(&c,&a,&b);
		if (bp != NULL)
			{
			if (!results)
				{
				BN_print(bp,&a);
				BIO_puts(bp," + ");
				BN_print(bp,&b);
				BIO_puts(bp," - ");
				}
			BN_print(bp,&c);
			BIO_puts(bp,"\n");
			}
		a.neg=!a.neg;
		b.neg=!b.neg;
		BN_add(&c,&c,&b);
		BN_add(&c,&c,&a);
		if(!BN_is_zero(&c))
		    {
		    fprintf(stderr,"Add test failed!\n");
		    return 0;
		    }
		}
	BN_free(&a);
	BN_free(&b);
	BN_free(&c);
	return(1);
	}
Exemple #11
0
int test_add(BIO *bp)
{
    BIGNUM *a, *b, *c;
    int i;

    a = BN_new();
    b = BN_new();
    c = BN_new();

    BN_bntest_rand(a, 512, 0, 0);
    for (i = 0; i < num0; i++) {
        BN_bntest_rand(b, 450 + i, 0, 0);
        a->neg = rand_neg();
        b->neg = rand_neg();
        BN_add(c, a, b);
        if (bp != NULL) {
            if (!results) {
                BN_print(bp, a);
                BIO_puts(bp, " + ");
                BN_print(bp, b);
                BIO_puts(bp, " - ");
            }
            BN_print(bp, c);
            BIO_puts(bp, "\n");
        }
        a->neg = !a->neg;
        b->neg = !b->neg;
        BN_add(c, c, b);
        BN_add(c, c, a);
        if (!BN_is_zero(c)) {
            fprintf(stderr, "Add test failed!\n");
            return 0;
        }
    }
    BN_free(a);
    BN_free(b);
    BN_free(c);
    return (1);
}
Exemple #12
0
int test_rshift(BIO *bp,BN_CTX *ctx)
	{
	BIGNUM *a,*b,*c,*d,*e;
	int i;

	a=BN_new();
	b=BN_new();
	c=BN_new();
	d=BN_new();
	e=BN_new();
	BN_one(c);

	BN_bntest_rand(a,200,0,0); /**/
	a->neg=rand_neg();
	for (i=0; i<num0; i++)
		{
		BN_rshift(b,a,i+1);
		BN_add(c,c,c);
		if (bp != NULL)
			{
			if (!results)
				{
				BN_print(bp,a);
				BIO_puts(bp," / ");
				BN_print(bp,c);
				BIO_puts(bp," - ");
				}
			BN_print(bp,b);
			BIO_puts(bp,"\n");
			}
		BN_div(d,e,a,c,ctx);
		BN_sub(d,d,b);
		if(!BN_is_zero(d))
		    {
		    fprintf(stderr,"Right shift test failed!\n");
		    return 0;
		    }
		}
	BN_free(a);
	BN_free(b);
	BN_free(c);
	BN_free(d);
	BN_free(e);
	return(1);
	}
Exemple #13
0
int test_sqr(BIO *bp, BN_CTX *ctx)
	{
	BIGNUM a,c,d,e;
	int i;

	BN_init(&a);
	BN_init(&c);
	BN_init(&d);
	BN_init(&e);

	for (i=0; i<num0; i++)
		{
		BN_bntest_rand(&a,40+i*10,0,0);
		a.neg=rand_neg();
		BN_sqr(&c,&a,ctx);
		if (bp != NULL)
			{
			if (!results)
				{
				BN_print(bp,&a);
				BIO_puts(bp," * ");
				BN_print(bp,&a);
				BIO_puts(bp," - ");
				}
			BN_print(bp,&c);
			BIO_puts(bp,"\n");
			}
		BN_div(&d,&e,&c,&a,ctx);
		BN_sub(&d,&d,&a);
		if(!BN_is_zero(&d) || !BN_is_zero(&e))
		    {
		    fprintf(stderr,"Square test failed!\n");
		    return 0;
		    }
		}
	BN_free(&a);
	BN_free(&c);
	BN_free(&d);
	BN_free(&e);
	return(1);
	}
Exemple #14
0
int test_lshift1(BIO *bp)
	{
	BIGNUM *a,*b,*c;
	int i;

	a=BN_new();
	b=BN_new();
	c=BN_new();

	BN_bntest_rand(a,200,0,0); /**/
	a->neg=rand_neg();
	for (i=0; i<num0; i++)
		{
		BN_lshift1(b,a);
		if (bp != NULL)
			{
			if (!results)
				{
				BN_print(bp,a);
				BIO_puts(bp," * 2");
				BIO_puts(bp," - ");
				}
			BN_print(bp,b);
			BIO_puts(bp,"\n");
			}
		BN_add(c,a,a);
		BN_sub(a,b,c);
		if(!BN_is_zero(a))
		    {
		    fprintf(stderr,"Left shift one test failed!\n");
		    return 0;
		    }
		
		BN_copy(a,b);
		}
	BN_free(a);
	BN_free(b);
	BN_free(c);
	return(1);
	}
Exemple #15
0
int test_mont(BIO *bp, BN_CTX *ctx)
	{
	BIGNUM a,b,c,d,A,B;
	BIGNUM n;
	int i;
	BN_MONT_CTX *mont;

	BN_init(&a);
	BN_init(&b);
	BN_init(&c);
	BN_init(&d);
	BN_init(&A);
	BN_init(&B);
	BN_init(&n);

	mont=BN_MONT_CTX_new();

	BN_bntest_rand(&a,100,0,0); /**/
	BN_bntest_rand(&b,100,0,0); /**/
	for (i=0; i<num2; i++)
		{
		int bits = (200*(i+1))/num2;

		if (bits == 0)
			continue;
		BN_bntest_rand(&n,bits,0,1);
		BN_MONT_CTX_set(mont,&n,ctx);

		BN_nnmod(&a,&a,&n,ctx);
		BN_nnmod(&b,&b,&n,ctx);

		BN_to_montgomery(&A,&a,mont,ctx);
		BN_to_montgomery(&B,&b,mont,ctx);

		BN_mod_mul_montgomery(&c,&A,&B,mont,ctx);/**/
		BN_from_montgomery(&A,&c,mont,ctx);/**/
		if (bp != NULL)
			{
			if (!results)
				{
#ifdef undef
fprintf(stderr,"%d * %d %% %d\n",
BN_num_bits(&a),
BN_num_bits(&b),
BN_num_bits(mont->N));
#endif
				BN_print(bp,&a);
				BIO_puts(bp," * ");
				BN_print(bp,&b);
				BIO_puts(bp," % ");
				BN_print(bp,&(mont->N));
				BIO_puts(bp," - ");
				}
			BN_print(bp,&A);
			BIO_puts(bp,"\n");
			}
		BN_mod_mul(&d,&a,&b,&n,ctx);
		BN_sub(&d,&d,&A);
		if(!BN_is_zero(&d))
		    {
		    fprintf(stderr,"Montgomery multiplication test failed!\n");
		    return 0;
		    }
		}
	BN_MONT_CTX_free(mont);
	BN_free(&a);
	BN_free(&b);
	BN_free(&c);
	BN_free(&d);
	BN_free(&A);
	BN_free(&B);
	BN_free(&n);
	return(1);
	}
Exemple #16
0
int test_sqrt(BIO *bp, BN_CTX *ctx)
	{
	BIGNUM *a,*p,*r;
	int i, j;
	int ret = 0;

	a = BN_new();
	p = BN_new();
	r = BN_new();
	if (a == NULL || p == NULL || r == NULL) goto err;
	
	for (i = 0; i < 16; i++)
		{
		if (i < 8)
			{
			unsigned primes[8] = { 2, 3, 5, 7, 11, 13, 17, 19 };
			
			if (!BN_set_word(p, primes[i])) goto err;
			}
		else
			{
			if (!BN_set_word(a, 32)) goto err;
			if (!BN_set_word(r, 2*i + 1)) goto err;
		
			if (!BN_generate_prime(p, 256, 0, a, r, genprime_cb, NULL)) goto err;
			putc('\n', stderr);
			}
		p->neg = rand_neg();

		for (j = 0; j < num2; j++)
			{
			/* construct 'a' such that it is a square modulo p,
			 * but in general not a proper square and not reduced modulo p */
			if (!BN_bntest_rand(r, 256, 0, 3)) goto err;
			if (!BN_nnmod(r, r, p, ctx)) goto err;
			if (!BN_mod_sqr(r, r, p, ctx)) goto err;
			if (!BN_bntest_rand(a, 256, 0, 3)) goto err;
			if (!BN_nnmod(a, a, p, ctx)) goto err;
			if (!BN_mod_sqr(a, a, p, ctx)) goto err;
			if (!BN_mul(a, a, r, ctx)) goto err;
			if (rand_neg())
				if (!BN_sub(a, a, p)) goto err;

			if (!BN_mod_sqrt(r, a, p, ctx)) goto err;
			if (!BN_mod_sqr(r, r, p, ctx)) goto err;

			if (!BN_nnmod(a, a, p, ctx)) goto err;

			if (BN_cmp(a, r) != 0)
				{
				fprintf(stderr, "BN_mod_sqrt failed: a = ");
				BN_print_fp(stderr, a);
				fprintf(stderr, ", r = ");
				BN_print_fp(stderr, r);
				fprintf(stderr, ", p = ");
				BN_print_fp(stderr, p);
				fprintf(stderr, "\n");
				goto err;
				}

			putc('.', stderr);
			fflush(stderr);
			}
		
		putc('\n', stderr);
		fflush(stderr);
		}
	ret = 1;
 err:
	if (a != NULL) BN_free(a);
	if (p != NULL) BN_free(p);
	if (r != NULL) BN_free(r);
	return ret;
	}
Exemple #17
0
int test_kron(BIO *bp, BN_CTX *ctx)
	{
	BIGNUM *a,*b,*r,*t;
	int i;
	int legendre, kronecker;
	int ret = 0;

	a = BN_new();
	b = BN_new();
	r = BN_new();
	t = BN_new();
	if (a == NULL || b == NULL || r == NULL || t == NULL) goto err;
	
	/* We test BN_kronecker(a, b, ctx) just for  b  odd (Jacobi symbol).
	 * In this case we know that if  b  is prime, then BN_kronecker(a, b, ctx)
	 * is congruent to $a^{(b-1)/2}$, modulo $b$ (Legendre symbol).
	 * So we generate a random prime  b  and compare these values
	 * for a number of random  a's.  (That is, we run the Solovay-Strassen
	 * primality test to confirm that  b  is prime, except that we
	 * don't want to test whether  b  is prime but whether BN_kronecker
	 * works.) */

	if (!BN_generate_prime(b, 512, 0, NULL, NULL, genprime_cb, NULL)) goto err;
	b->neg = rand_neg();
	putc('\n', stderr);

	for (i = 0; i < num0; i++)
		{
		if (!BN_bntest_rand(a, 512, 0, 0)) goto err;
		a->neg = rand_neg();

		/* t := (|b|-1)/2  (note that b is odd) */
		if (!BN_copy(t, b)) goto err;
		t->neg = 0;
		if (!BN_sub_word(t, 1)) goto err;
		if (!BN_rshift1(t, t)) goto err;
		/* r := a^t mod b */
		b->neg=0;
		
		if (!BN_mod_exp_recp(r, a, t, b, ctx)) goto err;
		b->neg=1;

		if (BN_is_word(r, 1))
			legendre = 1;
		else if (BN_is_zero(r))
			legendre = 0;
		else
			{
			if (!BN_add_word(r, 1)) goto err;
			if (0 != BN_ucmp(r, b))
				{
				fprintf(stderr, "Legendre symbol computation failed\n");
				goto err;
				}
			legendre = -1;
			}
		
		kronecker = BN_kronecker(a, b, ctx);
		if (kronecker < -1) goto err;
		/* we actually need BN_kronecker(a, |b|) */
		if (a->neg && b->neg)
			kronecker = -kronecker;
		
		if (legendre != kronecker)
			{
			fprintf(stderr, "legendre != kronecker; a = ");
			BN_print_fp(stderr, a);
			fprintf(stderr, ", b = ");
			BN_print_fp(stderr, b);
			fprintf(stderr, "\n");
			goto err;
			}

		putc('.', stderr);
		fflush(stderr);
		}

	putc('\n', stderr);
	fflush(stderr);
	ret = 1;
 err:
	if (a != NULL) BN_free(a);
	if (b != NULL) BN_free(b);
	if (r != NULL) BN_free(r);
	if (t != NULL) BN_free(t);
	return ret;
	}
Exemple #18
0
int test_div_recp(BIO *bp, BN_CTX *ctx)
	{
	BIGNUM a,b,c,d,e;
	BN_RECP_CTX recp;
	int i;

	BN_RECP_CTX_init(&recp);
	BN_init(&a);
	BN_init(&b);
	BN_init(&c);
	BN_init(&d);
	BN_init(&e);

	for (i=0; i<num0+num1; i++)
		{
		if (i < num1)
			{
			BN_bntest_rand(&a,400,0,0);
			BN_copy(&b,&a);
			BN_lshift(&a,&a,i);
			BN_add_word(&a,i);
			}
		else
			BN_bntest_rand(&b,50+3*(i-num1),0,0);
		a.neg=rand_neg();
		b.neg=rand_neg();
		BN_RECP_CTX_set(&recp,&b,ctx);
		BN_div_recp(&d,&c,&a,&recp,ctx);
		if (bp != NULL)
			{
			if (!results)
				{
				BN_print(bp,&a);
				BIO_puts(bp," / ");
				BN_print(bp,&b);
				BIO_puts(bp," - ");
				}
			BN_print(bp,&d);
			BIO_puts(bp,"\n");

			if (!results)
				{
				BN_print(bp,&a);
				BIO_puts(bp," % ");
				BN_print(bp,&b);
				BIO_puts(bp," - ");
				}
			BN_print(bp,&c);
			BIO_puts(bp,"\n");
			}
		BN_mul(&e,&d,&b,ctx);
		BN_add(&d,&e,&c);
		BN_sub(&d,&d,&a);
		if(!BN_is_zero(&d))
		    {
		    fprintf(stderr,"Reciprocal division test failed!\n");
		    fprintf(stderr,"a=");
		    BN_print_fp(stderr,&a);
		    fprintf(stderr,"\nb=");
		    BN_print_fp(stderr,&b);
		    fprintf(stderr,"\n");
		    return 0;
		    }
		}
	BN_free(&a);
	BN_free(&b);
	BN_free(&c);
	BN_free(&d);
	BN_free(&e);
	BN_RECP_CTX_free(&recp);
	return(1);
	}
Exemple #19
0
int test_mod_mul(BIO *bp, BN_CTX *ctx)
	{
	BIGNUM *a,*b,*c,*d,*e;
	int i,j;

	a=BN_new();
	b=BN_new();
	c=BN_new();
	d=BN_new();
	e=BN_new();

	for (j=0; j<3; j++) {
	BN_bntest_rand(c,1024,0,0); /**/
	for (i=0; i<num0; i++)
		{
		BN_bntest_rand(a,475+i*10,0,0); /**/
		BN_bntest_rand(b,425+i*11,0,0); /**/
		a->neg=rand_neg();
		b->neg=rand_neg();
		if (!BN_mod_mul(e,a,b,c,ctx))
			{
			unsigned long l;

			while ((l=ERR_get_error()))
				fprintf(stderr,"ERROR:%s\n",
					ERR_error_string(l,NULL));
			EXIT(1);
			}
		if (bp != NULL)
			{
			if (!results)
				{
				BN_print(bp,a);
				BIO_puts(bp," * ");
				BN_print(bp,b);
				BIO_puts(bp," % ");
				BN_print(bp,c);
				if ((a->neg ^ b->neg) && !BN_is_zero(e))
					{
					/* If  (a*b) % c  is negative,  c  must be added
					 * in order to obtain the normalized remainder
					 * (new with OpenSSL 0.9.7, previous versions of
					 * BN_mod_mul could generate negative results)
					 */
					BIO_puts(bp," + ");
					BN_print(bp,c);
					}
				BIO_puts(bp," - ");
				}
			BN_print(bp,e);
			BIO_puts(bp,"\n");
			}
		BN_mul(d,a,b,ctx);
		BN_sub(d,d,e);
		BN_div(a,b,d,c,ctx);
		if(!BN_is_zero(b))
		    {
		    fprintf(stderr,"Modulo multiply test failed!\n");
		    ERR_print_errors_fp(stderr);
		    return 0;
		    }
		}
	}
	BN_free(a);
	BN_free(b);
	BN_free(c);
	BN_free(d);
	BN_free(e);
	return(1);
	}