/*

 * Copyright 2001-2016 The OpenSSL Project Authors. All Rights Reserved.

 *

 * Licensed under the OpenSSL license (the "License").  You may not use

 * this file except in compliance with the License.  You can obtain a copy

 * in the file LICENSE in the source distribution or at

 * https://www.openssl.org/source/license.html

 */

/* ====================================================================

 * Copyright 2002 Sun Microsystems, Inc. ALL RIGHTS RESERVED.

 *

 * Portions of the attached software ("Contribution") are developed by

 * SUN MICROSYSTEMS, INC., and are contributed to the OpenSSL project.

 *

 * The Contribution is licensed pursuant to the OpenSSL open source

 * license provided above.

 *

 * The elliptic curve binary polynomial software is originally written by

 * Sheueling Chang Shantz and Douglas Stebila of Sun Microsystems Laboratories.

 *

 */

#include <stdio.h>

#include <stdlib.h>

#ifdef FLAT_INC

# include "e_os.h"

#else

# include "../e_os.h"

#endif

#include <string.h>

#include <time.h>

#ifdef OPENSSL_NO_EC

int main(int argc, char *argv[])

{

    puts("Elliptic curves are disabled.");

    return 0;

}

#else

# include <openssl/ec.h>

# ifndef OPENSSL_NO_ENGINE

#  include <openssl/engine.h>

# endif

# include <openssl/err.h>

# include <openssl/obj_mac.h>

# include <openssl/objects.h>

# include <openssl/rand.h>

# include <openssl/bn.h>

# include <openssl/opensslconf.h>

# if defined(_MSC_VER) && defined(_MIPS_) && (_MSC_VER/100==12)

/* suppress "too big too optimize" warning */

#  pragma warning(disable:4959)

# endif

# define ABORT do { \

        fflush(stdout); \

        fprintf(stderr, "%s:%d: ABORT\n", __FILE__, __LINE__); \

        ERR_print_errors_fp(stderr); \

        EXIT(1); \

} while (0)

# define TIMING_BASE_PT 0

# define TIMING_RAND_PT 1

# define TIMING_SIMUL 2

/* test multiplication with group order, long and negative scalars */

static void group_order_tests(EC_GROUP *group)

{

    BIGNUM *n1, *n2, *order;

    EC_POINT *P = EC_POINT_new(group);

    EC_POINT *Q = EC_POINT_new(group);

    EC_POINT *R = EC_POINT_new(group);

    EC_POINT *S = EC_POINT_new(group);

    BN_CTX *ctx = BN_CTX_new();

    int i;

    n1 = BN_new();

    n2 = BN_new();

    order = BN_new();

    fprintf(stdout, "verify group order ...");

    fflush(stdout);

    if (!EC_GROUP_get_order(group, order, ctx))

        ABORT;

    if (!EC_POINT_mul(group, Q, order, NULL, NULL, ctx))

        ABORT;

    if (!EC_POINT_is_at_infinity(group, Q))

        ABORT;

    fprintf(stdout, ".");

    fflush(stdout);

    if (!EC_GROUP_precompute_mult(group, ctx))

        ABORT;

    if (!EC_POINT_mul(group, Q, order, NULL, NULL, ctx))

        ABORT;

    if (!EC_POINT_is_at_infinity(group, Q))

        ABORT;

    fprintf(stdout, " ok\n");

    fprintf(stdout, "long/negative scalar tests ");

    for (i = 1; i <= 2; i++) {

        const BIGNUM *scalars[6];

        const EC_POINT *points[6];

        fprintf(stdout, i == 1 ?

                "allowing precomputation ... " :

                "without precomputation ... ");

        if (!BN_set_word(n1, i))

            ABORT;

        /*

         * If i == 1, P will be the predefined generator for which

         * EC_GROUP_precompute_mult has set up precomputation.

         */

        if (!EC_POINT_mul(group, P, n1, NULL, NULL, ctx))

            ABORT;

        if (!BN_one(n1))

            ABORT;

        /* n1 = 1 - order */

        if (!BN_sub(n1, n1, order))

            ABORT;

        if (!EC_POINT_mul(group, Q, NULL, P, n1, ctx))

            ABORT;

        if (0 != EC_POINT_cmp(group, Q, P, ctx))

            ABORT;

        /* n2 = 1 + order */

        if (!BN_add(n2, order, BN_value_one()))

            ABORT;

        if (!EC_POINT_mul(group, Q, NULL, P, n2, ctx))

            ABORT;

        if (0 != EC_POINT_cmp(group, Q, P, ctx))

            ABORT;

        /* n2 = (1 - order) * (1 + order) = 1 - order^2 */

        if (!BN_mul(n2, n1, n2, ctx))

            ABORT;

        if (!EC_POINT_mul(group, Q, NULL, P, n2, ctx))

            ABORT;

        if (0 != EC_POINT_cmp(group, Q, P, ctx))

            ABORT;

        /* n2 = order^2 - 1 */

        BN_set_negative(n2, 0);

        if (!EC_POINT_mul(group, Q, NULL, P, n2, ctx))

            ABORT;

        /* Add P to verify the result. */

        if (!EC_POINT_add(group, Q, Q, P, ctx))

            ABORT;

        if (!EC_POINT_is_at_infinity(group, Q))

            ABORT;

        /* Exercise EC_POINTs_mul, including corner cases. */

        if (EC_POINT_is_at_infinity(group, P))

            ABORT;

        scalars[0] = scalars[1] = BN_value_one();

        points[0]  = points[1]  = P;

        if (!EC_POINTs_mul(group, R, NULL, 2, points, scalars, ctx))

            ABORT;

        if (!EC_POINT_dbl(group, S, points[0], ctx))

            ABORT;

        if (0 != EC_POINT_cmp(group, R, S, ctx))

            ABORT;

        scalars[0] = n1;

        points[0] = Q;          /* => infinity */

        scalars[1] = n2;

        points[1] = P;          /* => -P */

        scalars[2] = n1;

        points[2] = Q;          /* => infinity */

        scalars[3] = n2;

        points[3] = Q;          /* => infinity */

        scalars[4] = n1;

        points[4] = P;          /* => P */

        scalars[5] = n2;

        points[5] = Q;          /* => infinity */

        if (!EC_POINTs_mul(group, P, NULL, 6, points, scalars, ctx))

            ABORT;

        if (!EC_POINT_is_at_infinity(group, P))

            ABORT;

    }

    fprintf(stdout, "ok\n");

    EC_POINT_free(P);

    EC_POINT_free(Q);

    EC_POINT_free(R);

    EC_POINT_free(S);

    BN_free(n1);

    BN_free(n2);

    BN_free(order);

    BN_CTX_free(ctx);

}

static void prime_field_tests(void)

{

    BN_CTX *ctx = NULL;

    BIGNUM *p, *a, *b;

    EC_GROUP *group;

    EC_GROUP *P_160 = NULL, *P_192 = NULL, *P_224 = NULL, *P_256 =

        NULL, *P_384 = NULL, *P_521 = NULL;

    EC_POINT *P, *Q, *R;

    BIGNUM *x, *y, *z, *yplusone;

    unsigned char buf[100];

    size_t i, len;

    int k;

    ctx = BN_CTX_new();

    if (!ctx)

        ABORT;

    p = BN_new();

    a = BN_new();

    b = BN_new();

    if (!p || !a || !b)

        ABORT;

    group = EC_GROUP_new(EC_GFp_mont_method()); /* applications should use

                                                 * EC_GROUP_new_curve_GFp so

                                                 * that the library gets to

                                                 * choose the EC_METHOD */

    if (!group)

        ABORT;

    P = EC_POINT_new(group);

    Q = EC_POINT_new(group);

    R = EC_POINT_new(group);

    if (!P || !Q || !R)

        ABORT;

    x = BN_new();

    y = BN_new();

    z = BN_new();

    yplusone = BN_new();

    if (x == NULL || y == NULL || z == NULL || yplusone == NULL)

        ABORT;

    /* Curve P-224 (FIPS PUB 186-2, App. 6) */

    if (!BN_hex2bn

        (&p, "FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF000000000000000000000001"))

        ABORT;

    if (1 != BN_is_prime_ex(p, BN_prime_checks, ctx, NULL))

        ABORT;

    if (!BN_hex2bn

        (&a, "FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFEFFFFFFFFFFFFFFFFFFFFFFFE"))

        ABORT;

    if (!BN_hex2bn

        (&b, "B4050A850C04B3ABF54132565044B0B7D7BFD8BA270B39432355FFB4"))

        ABORT;

    if (!EC_GROUP_set_curve_GFp(group, p, a, b, ctx))

        ABORT;

    if (!BN_hex2bn

        (&x, "B70E0CBD6BB4BF7F321390B94A03C1D356C21122343280D6115C1D21"))

        ABORT;

    if (!EC_POINT_set_compressed_coordinates_GFp(group, P, x, 0, ctx))

        ABORT;

    if (EC_POINT_is_on_curve(group, P, ctx) <= 0)

        ABORT;

    if (!BN_hex2bn

        (&z, "FFFFFFFFFFFFFFFFFFFFFFFFFFFF16A2E0B8F03E13DD29455C5C2A3D"))

        ABORT;

    if (!EC_GROUP_set_generator(group, P, z, BN_value_one()))

        ABORT;

    if (!EC_POINT_get_affine_coordinates_GFp(group, P, x, y, ctx))

        ABORT;

    fprintf(stdout, "\nNIST curve P-224 -- Generator:\n     x = 0x");

    BN_print_fp(stdout, x);

    fprintf(stdout, "\n     y = 0x");

    BN_print_fp(stdout, y);

    fprintf(stdout, "\n");

    /* G_y value taken from the standard: */

    if (!BN_hex2bn

        (&z, "BD376388B5F723FB4C22DFE6CD4375A05A07476444D5819985007E34"))

        ABORT;

    if (0 != BN_cmp(y, z))

        ABORT;

    if (!BN_add(yplusone, y, BN_value_one()))

        ABORT;

    /*

     * When (x, y) is on the curve, (x, y + 1) is, as it happens, not,

     * and therefore setting the coordinates should fail.

     */

    if (EC_POINT_set_affine_coordinates_GFp(group, P, x, yplusone, ctx))

        ABORT;

    fprintf(stdout, "verify degree ...");

    if (EC_GROUP_get_degree(group) != 224)

        ABORT;

    fprintf(stdout, " ok\n");

    group_order_tests(group);

    if ((P_224 = EC_GROUP_new(EC_GROUP_method_of(group))) == NULL)

        ABORT;

    if (!EC_GROUP_copy(P_224, group))

        ABORT;

    /* Curve P-256 (FIPS PUB 186-2, App. 6) */

    if (!BN_hex2bn

        (&p,

         "FFFFFFFF00000001000000000000000000000000FFFFFFFFFFFFFFFFFFFFFFFF"))

        ABORT;

    if (1 != BN_is_prime_ex(p, BN_prime_checks, ctx, NULL))

        ABORT;

    if (!BN_hex2bn

        (&a,

         "FFFFFFFF00000001000000000000000000000000FFFFFFFFFFFFFFFFFFFFFFFC"))

        ABORT;

    if (!BN_hex2bn

        (&b,

         "5AC635D8AA3A93E7B3EBBD55769886BC651D06B0CC53B0F63BCE3C3E27D2604B"))

        ABORT;

    if (!EC_GROUP_set_curve_GFp(group, p, a, b, ctx))

        ABORT;

    if (!BN_hex2bn

        (&x,

         "6B17D1F2E12C4247F8BCE6E563A440F277037D812DEB33A0F4A13945D898C296"))

        ABORT;

    if (!EC_POINT_set_compressed_coordinates_GFp(group, P, x, 1, ctx))

        ABORT;

    if (EC_POINT_is_on_curve(group, P, ctx) <= 0)

        ABORT;

    if (!BN_hex2bn(&z, "FFFFFFFF00000000FFFFFFFFFFFFFFFFBCE6FAADA7179E"

                   "84F3B9CAC2FC632551"))

        ABORT;

    if (!EC_GROUP_set_generator(group, P, z, BN_value_one()))

        ABORT;

    if (!EC_POINT_get_affine_coordinates_GFp(group, P, x, y, ctx))

        ABORT;

    fprintf(stdout, "\nNIST curve P-256 -- Generator:\n     x = 0x");

    BN_print_fp(stdout, x);

    fprintf(stdout, "\n     y = 0x");

    BN_print_fp(stdout, y);

    fprintf(stdout, "\n");

    /* G_y value taken from the standard: */

    if (!BN_hex2bn

        (&z,

         "4FE342E2FE1A7F9B8EE7EB4A7C0F9E162BCE33576B315ECECBB6406837BF51F5"))

        ABORT;

    if (0 != BN_cmp(y, z))

        ABORT;

    if (!BN_add(yplusone, y, BN_value_one()))

        ABORT;

    /*

     * When (x, y) is on the curve, (x, y + 1) is, as it happens, not,

     * and therefore setting the coordinates should fail.

     */

    if (EC_POINT_set_affine_coordinates_GFp(group, P, x, yplusone, ctx))

        ABORT;

    fprintf(stdout, "verify degree ...");

    if (EC_GROUP_get_degree(group) != 256)

        ABORT;

    fprintf(stdout, " ok\n");

    group_order_tests(group);

    if ((P_256 = EC_GROUP_new(EC_GROUP_method_of(group))) == NULL)

        ABORT;

    if (!EC_GROUP_copy(P_256, group))

        ABORT;

    /* Curve P-384 (FIPS PUB 186-2, App. 6) */

    if (!BN_hex2bn(&p, "FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF"

                   "FFFFFFFFFFFFFFFFFEFFFFFFFF0000000000000000FFFFFFFF"))

        ABORT;

    if (1 != BN_is_prime_ex(p, BN_prime_checks, ctx, NULL))

        ABORT;

    if (!BN_hex2bn(&a, "FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF"

                   "FFFFFFFFFFFFFFFFFEFFFFFFFF0000000000000000FFFFFFFC"))

        ABORT;

    if (!BN_hex2bn(&b, "B3312FA7E23EE7E4988E056BE3F82D19181D9C6EFE8141"

                   "120314088F5013875AC656398D8A2ED19D2A85C8EDD3EC2AEF"))

        ABORT;

    if (!EC_GROUP_set_curve_GFp(group, p, a, b, ctx))

        ABORT;

    if (!BN_hex2bn(&x, "AA87CA22BE8B05378EB1C71EF320AD746E1D3B628BA79B"

                   "9859F741E082542A385502F25DBF55296C3A545E3872760AB7"))

        ABORT;

    if (!EC_POINT_set_compressed_coordinates_GFp(group, P, x, 1, ctx))

        ABORT;

    if (EC_POINT_is_on_curve(group, P, ctx) <= 0)

        ABORT;

    if (!BN_hex2bn(&z, "FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF"

                   "FFC7634D81F4372DDF581A0DB248B0A77AECEC196ACCC52973"))

        ABORT;

    if (!EC_GROUP_set_generator(group, P, z, BN_value_one()))

        ABORT;

    if (!EC_POINT_get_affine_coordinates_GFp(group, P, x, y, ctx))

        ABORT;

    fprintf(stdout, "\nNIST curve P-384 -- Generator:\n     x = 0x");

    BN_print_fp(stdout, x);

    fprintf(stdout, "\n     y = 0x");

    BN_print_fp(stdout, y);

    fprintf(stdout, "\n");

    /* G_y value taken from the standard: */

    if (!BN_hex2bn(&z, "3617DE4A96262C6F5D9E98BF9292DC29F8F41DBD289A14"

                   "7CE9DA3113B5F0B8C00A60B1CE1D7E819D7A431D7C90EA0E5F"))

        ABORT;

    if (0 != BN_cmp(y, z))

        ABORT;

    if (!BN_add(yplusone, y, BN_value_one()))

        ABORT;

    /*

     * When (x, y) is on the curve, (x, y + 1) is, as it happens, not,

     * and therefore setting the coordinates should fail.

     */

    if (EC_POINT_set_affine_coordinates_GFp(group, P, x, yplusone, ctx))

        ABORT;

    fprintf(stdout, "verify degree ...");

    if (EC_GROUP_get_degree(group) != 384)

        ABORT;

    fprintf(stdout, " ok\n");

    group_order_tests(group);

    if ((P_384 = EC_GROUP_new(EC_GROUP_method_of(group))) == NULL)

        ABORT;

    if (!EC_GROUP_copy(P_384, group))

        ABORT;

    /* Curve P-521 (FIPS PUB 186-2, App. 6) */

    if (!BN_hex2bn(&p, "1FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF"

                   "FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF"

                   "FFFFFFFFFFFFFFFFFFFFFFFFFFFF"))

        ABORT;

    if (1 != BN_is_prime_ex(p, BN_prime_checks, ctx, NULL))

        ABORT;

    if (!BN_hex2bn(&a, "1FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF"

                   "FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF"

                   "FFFFFFFFFFFFFFFFFFFFFFFFFFFC"))

        ABORT;

    if (!BN_hex2bn(&b, "051953EB9618E1C9A1F929A21A0B68540EEA2DA725B99B"

                   "315F3B8B489918EF109E156193951EC7E937B1652C0BD3BB1BF073573"

                   "DF883D2C34F1EF451FD46B503F00"))

        ABORT;

    if (!EC_GROUP_set_curve_GFp(group, p, a, b, ctx))

        ABORT;

    if (!BN_hex2bn(&x, "C6858E06B70404E9CD9E3ECB662395B4429C648139053F"

                   "B521F828AF606B4D3DBAA14B5E77EFE75928FE1DC127A2FFA8DE3348B"

                   "3C1856A429BF97E7E31C2E5BD66"))

        ABORT;

    if (!EC_POINT_set_compressed_coordinates_GFp(group, P, x, 0, ctx))

        ABORT;

    if (EC_POINT_is_on_curve(group, P, ctx) <= 0)

        ABORT;

    if (!BN_hex2bn(&z, "1FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF"

                   "FFFFFFFFFFFFFFFFFFFFA51868783BF2F966B7FCC0148F709A5D03BB5"

                   "C9B8899C47AEBB6FB71E91386409"))

        ABORT;

    if (!EC_GROUP_set_generator(group, P, z, BN_value_one()))

        ABORT;

    if (!EC_POINT_get_affine_coordinates_GFp(group, P, x, y, ctx))

        ABORT;

    fprintf(stdout, "\nNIST curve P-521 -- Generator:\n     x = 0x");

    BN_print_fp(stdout, x);

    fprintf(stdout, "\n     y = 0x");

    BN_print_fp(stdout, y);

    fprintf(stdout, "\n");

    /* G_y value taken from the standard: */

    if (!BN_hex2bn(&z, "11839296A789A3BC0045C8A5FB42C7D1BD998F54449579"

                   "B446817AFBD17273E662C97EE72995EF42640C550B9013FAD0761353C"

                   "7086A272C24088BE94769FD16650"))

        ABORT;

    if (0 != BN_cmp(y, z))

        ABORT;

    if (!BN_add(yplusone, y, BN_value_one()))

        ABORT;

    /*

     * When (x, y) is on the curve, (x, y + 1) is, as it happens, not,

     * and therefore setting the coordinates should fail.

     */

    if (EC_POINT_set_affine_coordinates_GFp(group, P, x, yplusone, ctx))

        ABORT;

    fprintf(stdout, "verify degree ...");

    if (EC_GROUP_get_degree(group) != 521)

        ABORT;

    fprintf(stdout, " ok\n");

    group_order_tests(group);

    if ((P_521 = EC_GROUP_new(EC_GROUP_method_of(group))) == NULL)

        ABORT;

    if (!EC_GROUP_copy(P_521, group))

        ABORT;

    /* more tests using the last curve */

    /* Restore the point that got mangled in the (x, y + 1) test. */

    if (!EC_POINT_set_affine_coordinates_GFp(group, P, x, y, ctx))

        ABORT;

    if (!EC_POINT_copy(Q, P))

        ABORT;

    if (EC_POINT_is_at_infinity(group, Q))

        ABORT;

    if (!EC_POINT_dbl(group, P, P, ctx))

        ABORT;

    if (EC_POINT_is_on_curve(group, P, ctx) <= 0)

        ABORT;

    if (!EC_POINT_invert(group, Q, ctx))

        ABORT;                  /* P = -2Q */

    if (!EC_POINT_add(group, R, P, Q, ctx))

        ABORT;

    if (!EC_POINT_add(group, R, R, Q, ctx))

        ABORT;

    if (!EC_POINT_is_at_infinity(group, R))

        ABORT;                  /* R = P + 2Q */

    {

        const EC_POINT *points[4];

        const BIGNUM *scalars[4];

        BIGNUM *scalar3;

        if (EC_POINT_is_at_infinity(group, Q))

            ABORT;

        points[0] = Q;

        points[1] = Q;

        points[2] = Q;

        points[3] = Q;

        if (!EC_GROUP_get_order(group, z, ctx))

            ABORT;

        if (!BN_add(y, z, BN_value_one()))

            ABORT;

        if (BN_is_odd(y))

            ABORT;

        if (!BN_rshift1(y, y))

            ABORT;

        scalars[0] = y;         /* (group order + 1)/2, so y*Q + y*Q = Q */

        scalars[1] = y;

        fprintf(stdout, "combined multiplication ...");

        fflush(stdout);

        /* z is still the group order */

        if (!EC_POINTs_mul(group, P, NULL, 2, points, scalars, ctx))

            ABORT;

        if (!EC_POINTs_mul(group, R, z, 2, points, scalars, ctx))

            ABORT;

        if (0 != EC_POINT_cmp(group, P, R, ctx))

            ABORT;

        if (0 != EC_POINT_cmp(group, R, Q, ctx))

            ABORT;

        fprintf(stdout, ".");

        fflush(stdout);

        if (!BN_pseudo_rand(y, BN_num_bits(y), 0, 0))

            ABORT;

        if (!BN_add(z, z, y))

            ABORT;

        BN_set_negative(z, 1);

        scalars[0] = y;

        scalars[1] = z;         /* z = -(order + y) */

        if (!EC_POINTs_mul(group, P, NULL, 2, points, scalars, ctx))

            ABORT;

        if (!EC_POINT_is_at_infinity(group, P))

            ABORT;

        fprintf(stdout, ".");

        fflush(stdout);

        if (!BN_pseudo_rand(x, BN_num_bits(y) - 1, 0, 0))

            ABORT;

        if (!BN_add(z, x, y))

            ABORT;

        BN_set_negative(z, 1);

        scalars[0] = x;

        scalars[1] = y;

        scalars[2] = z;         /* z = -(x+y) */

        scalar3 = BN_new();

        if (!scalar3)

            ABORT;

        BN_zero(scalar3);

        scalars[3] = scalar3;

        if (!EC_POINTs_mul(group, P, NULL, 4, points, scalars, ctx))

            ABORT;

        if (!EC_POINT_is_at_infinity(group, P))

            ABORT;

        fprintf(stdout, " ok\n\n");

        BN_free(scalar3);

    }

    BN_CTX_free(ctx);

    BN_free(p);

    BN_free(a);

    BN_free(b);

    EC_GROUP_free(group);

    EC_POINT_free(P);

    EC_POINT_free(Q);

    EC_POINT_free(R);

    BN_free(x);

    BN_free(y);

    BN_free(z);

    BN_free(yplusone);

    EC_GROUP_free(P_224);

    EC_GROUP_free(P_256);

    EC_GROUP_free(P_384);

    EC_GROUP_free(P_521);

}

static void internal_curve_test(void)

{

    EC_builtin_curve *curves = NULL;

    size_t crv_len = 0, n = 0;

    int ok = 1;

    crv_len = EC_get_builtin_curves(NULL, 0);

    curves = OPENSSL_malloc(sizeof(*curves) * crv_len);

    if (curves == NULL)

        return;

    if (!EC_get_builtin_curves(curves, crv_len)) {

        OPENSSL_free(curves);

        return;

    }

    fprintf(stdout, "testing internal curves: ");

    for (n = 0; n < crv_len; n++) {

        EC_GROUP *group = NULL;

        int nid = curves[n].nid;

        if ((group = EC_GROUP_new_by_curve_name(nid)) == NULL) {

            ok = 0;

            fprintf(stdout, "\nEC_GROUP_new_curve_name() failed with"

                    " curve %s\n", OBJ_nid2sn(nid));

            /* try next curve */

            continue;

        }

        if (!EC_GROUP_check(group, NULL)) {

            ok = 0;

            fprintf(stdout, "\nEC_GROUP_check() failed with"

                    " curve %s\n", OBJ_nid2sn(nid));

            EC_GROUP_free(group);

            /* try the next curve */

            continue;

        }

        fprintf(stdout, ".");

        fflush(stdout);

        EC_GROUP_free(group);

    }

    if (ok)

        fprintf(stdout, " ok\n\n");

    else {

        fprintf(stdout, " failed\n\n");

        ABORT;

    }

    /* Test all built-in curves and let the library choose the EC_METHOD */

    for (n = 0; n < crv_len; n++) {

        EC_GROUP *group = NULL;

        int nid = curves[n].nid;

        /*

         * Skip for X25519 because low level operations such as EC_POINT_mul()

         * are not supported for this curve

         */

        if (nid == NID_X25519)

            continue;

        fprintf(stdout, "%s:\n", OBJ_nid2sn(nid));

        fflush(stdout);

        if ((group = EC_GROUP_new_by_curve_name(nid)) == NULL) {

            ABORT;

        }

        group_order_tests(group);

        EC_GROUP_free(group);

    }

    OPENSSL_free(curves);

    return;

}

# ifndef OPENSSL_NO_EC_NISTP_64_GCC_128

/*

 * nistp_test_params contains magic numbers for testing our optimized

 * implementations of several NIST curves with characteristic > 3.

 */

struct nistp_test_params {

    const EC_METHOD *(*meth) ();

    int degree;

    /*

     * Qx, Qy and D are taken from

     * http://csrc.nist.gov/groups/ST/toolkit/documents/Examples/ECDSA_Prime.pdf

     * Otherwise, values are standard curve parameters from FIPS 180-3

     */

    const char *p, *a, *b, *Qx, *Qy, *Gx, *Gy, *order, *d;

};

static const struct nistp_test_params nistp_tests_params[] = {