C++ EC_GROUP_method_of函数代码示例

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本文整理汇总了C++中EC_GROUP_method_of函数的典型用法代码示例。如果您正苦于以下问题：C++ EC_GROUP_method_of函数的具体用法？C++ EC_GROUP_method_of怎么用？C++ EC_GROUP_method_of使用的例子？那么恭喜您, 这里精选的函数代码示例或许可以为您提供帮助。

在下文中一共展示了EC_GROUP_method_of函数的20个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于我们的系统推荐出更棒的C++代码示例。

示例1: EC_GROUP_get_pentanomial_basis

int EC_GROUP_get_pentanomial_basis(const EC_GROUP *group, unsigned int *k1,
                                   unsigned int *k2, unsigned int *k3)
{
    if (group == NULL)
        return 0;

    if (EC_GROUP_method_of(group)->group_set_curve !=
        ec_GF2m_simple_group_set_curve || !((group->poly[0] != 0)
                                            && (group->poly[1] != 0)
                                            && (group->poly[2] != 0)
                                            && (group->poly[3] != 0)
                                            && (group->poly[4] == 0))) {
        ECerr(EC_F_EC_GROUP_GET_PENTANOMIAL_BASIS,
              ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
        return 0;
    }

    if (k1)
        *k1 = group->poly[3];
    if (k2)
        *k2 = group->poly[2];
    if (k3)
        *k3 = group->poly[1];

    return 1;
}

开发者ID:bbidd985，项目名称:IEEE_Taggant_System，代码行数:26，代码来源:ec_asn1.c

示例2: EC_GROUP_get_pentanomial_basis

int EC_GROUP_get_pentanomial_basis(const EC_GROUP *group, unsigned int *k1,
                                   unsigned int *k2, unsigned int *k3)
{
    if (group == NULL)
        return 0;

    if (EC_METHOD_get_field_type(EC_GROUP_method_of(group)) !=
            NID_X9_62_characteristic_two_field
            || !((group->poly[0] != 0) && (group->poly[1] != 0)
                 && (group->poly[2] != 0) && (group->poly[3] != 0)
                 && (group->poly[4] == 0))) {
        ECerr(EC_F_EC_GROUP_GET_PENTANOMIAL_BASIS,
              ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
        return 0;
    }

    if (k1)
        *k1 = group->poly[3];
    if (k2)
        *k2 = group->poly[2];
    if (k3)
        *k3 = group->poly[1];

    return 1;
}

开发者ID:swipetospin，项目名称:openssl，代码行数:25，代码来源:ec_asn1.c

示例3: EC_KEY_copy

EC_KEY *
EC_KEY_copy(EC_KEY * dest, const EC_KEY * src)
{
	EC_EXTRA_DATA *d;

	if (dest == NULL || src == NULL) {
		ECerr(EC_F_EC_KEY_COPY, ERR_R_PASSED_NULL_PARAMETER);
		return NULL;
	}
	/* copy the parameters */
	if (src->group) {
		const EC_METHOD *meth = EC_GROUP_method_of(src->group);
		/* clear the old group */
		EC_GROUP_free(dest->group);
		dest->group = EC_GROUP_new(meth);
		if (dest->group == NULL)
			return NULL;
		if (!EC_GROUP_copy(dest->group, src->group))
			return NULL;
	}
	/* copy the public key */
	if (src->pub_key && src->group) {
		EC_POINT_free(dest->pub_key);
		dest->pub_key = EC_POINT_new(src->group);
		if (dest->pub_key == NULL)
			return NULL;
		if (!EC_POINT_copy(dest->pub_key, src->pub_key))
			return NULL;
	}
	/* copy the private key */
	if (src->priv_key) {
		if (dest->priv_key == NULL) {
			dest->priv_key = BN_new();
			if (dest->priv_key == NULL)
				return NULL;
		}
		if (!BN_copy(dest->priv_key, src->priv_key))
			return NULL;
	}
	/* copy method/extra data */
	EC_EX_DATA_free_all_data(&dest->method_data);

	for (d = src->method_data; d != NULL; d = d->next) {
		void *t = d->dup_func(d->data);

		if (t == NULL)
			return 0;
		if (!EC_EX_DATA_set_data(&dest->method_data, t, d->dup_func,
		    d->free_func, d->clear_free_func))
			return 0;
	}

	/* copy the rest */
	dest->enc_flag = src->enc_flag;
	dest->conv_form = src->conv_form;
	dest->version = src->version;
	dest->flags = src->flags;

	return dest;
}

开发者ID:Heratom，项目名称:Firefly-project，代码行数:60，代码来源:ec_key.c

示例4: ec_get_pubkey

static int ec_get_pubkey(EC_KEY *key, BIGNUM *x, BIGNUM *y)
{
    const EC_POINT *pt;
    const EC_GROUP *grp;
    const EC_METHOD *meth;
    int rv;
    BN_CTX *ctx;
    ctx = BN_CTX_new();
    if (!ctx)
        return 0;
    grp = EC_KEY_get0_group(key);
    pt = EC_KEY_get0_public_key(key);
    meth = EC_GROUP_method_of(grp);
    if (EC_METHOD_get_field_type(meth) == NID_X9_62_prime_field)
        rv = EC_POINT_get_affine_coordinates_GFp(grp, pt, x, y, ctx);
    else
# ifdef OPENSSL_NO_EC2M
    {
        fprintf(stderr, "ERROR: GF2m not supported\n");
        exit(1);
    }
# else
        rv = EC_POINT_get_affine_coordinates_GF2m(grp, pt, x, y, ctx);
# endif

    BN_CTX_free(ctx);

    return rv;

}

开发者ID:davidlt，项目名称:openssl-fedora，代码行数:30，代码来源:fips_ecdsavs.c

示例5: EC_GROUP_get_trinomial_basis

int 
EC_GROUP_get_trinomial_basis(const EC_GROUP * group, unsigned int *k)
{
	if (group == NULL)
		return 0;

	if (EC_METHOD_get_field_type(EC_GROUP_method_of(group)) !=
	    NID_X9_62_characteristic_two_field
	    || !((group->poly[0] != 0) && (group->poly[1] != 0) && (group->poly[2] == 0))) {
		ECerr(EC_F_EC_GROUP_GET_TRINOMIAL_BASIS, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
		return 0;
	}
	if (k)
		*k = group->poly[1];

	return 1;
}

开发者ID:busterb，项目名称:libssl-openbsd，代码行数:17，代码来源:ec_asn1.c

示例6: tls1_set_ec_id

/* For an EC key set TLS ID and required compression based on parameters. */
static int
tls1_set_ec_id(uint16_t *curve_id, uint8_t *comp_id, EC_KEY *ec)
{
	const EC_GROUP *grp;
	const EC_METHOD *meth;
	int is_prime = 0;
	int nid, id;

	if (ec == NULL)
		return (0);

	/* Determine if it is a prime field. */
	if ((grp = EC_KEY_get0_group(ec)) == NULL)
		return (0);
	if ((meth = EC_GROUP_method_of(grp)) == NULL)
		return (0);
	if (EC_METHOD_get_field_type(meth) == NID_X9_62_prime_field)
		is_prime = 1;

	/* Determine curve ID. */
	nid = EC_GROUP_get_curve_name(grp);
	id = tls1_ec_nid2curve_id(nid);

	/* If we have an ID set it, otherwise set arbitrary explicit curve. */
	if (id != 0)
		*curve_id = id;
	else
		*curve_id = is_prime ? 0xff01 : 0xff02;

	/* Specify the compression identifier. */
	if (comp_id != NULL) {
		if (EC_KEY_get0_public_key(ec) == NULL)
			return (0);

		if (EC_KEY_get_conv_form(ec) == POINT_CONVERSION_COMPRESSED) {
			*comp_id = is_prime ?
			    TLSEXT_ECPOINTFORMAT_ansiX962_compressed_prime :
			    TLSEXT_ECPOINTFORMAT_ansiX962_compressed_char2;
		} else {
			*comp_id = TLSEXT_ECPOINTFORMAT_uncompressed;
		}
	}
	return (1);
}

开发者ID:bbbrumley，项目名称:openbsd，代码行数:45，代码来源:t1_lib.c

示例7: EC_GROUP_get_basis_type

int EC_GROUP_get_basis_type(const EC_GROUP *group)
{
    int i = 0;

    if (EC_METHOD_get_field_type(EC_GROUP_method_of(group)) !=
            NID_X9_62_characteristic_two_field)
        /* everything else is currently not supported */
        return 0;

    while (group->poly[i] != 0)
        i++;

    if (i == 4)
        return NID_X9_62_ppBasis;
    else if (i == 2)
        return NID_X9_62_tpBasis;
    else
        /* everything else is currently not supported */
        return 0;
}

开发者ID:swipetospin，项目名称:openssl，代码行数:20，代码来源:ec_asn1.c

示例8: ecdsa_sign_setup

static int ecdsa_sign_setup(EC_KEY *eckey, BN_CTX *ctx_in, BIGNUM **kinvp,
		BIGNUM **rp)
{
	BN_CTX   *ctx = NULL;
	BIGNUM	 *k = NULL, *r = NULL, *order = NULL, *X = NULL;
	EC_POINT *tmp_point=NULL;
	const EC_GROUP *group;
	int 	 ret = 0;

	if (eckey == NULL || (group = EC_KEY_get0_group(eckey)) == NULL)
	{
		ECDSAerr(ECDSA_F_ECDSA_SIGN_SETUP, ERR_R_PASSED_NULL_PARAMETER);
		return 0;
	}

	if (ctx_in == NULL) 
	{
		if ((ctx = BN_CTX_new()) == NULL)
		{
			ECDSAerr(ECDSA_F_ECDSA_SIGN_SETUP,ERR_R_MALLOC_FAILURE);
			return 0;
		}
	}
	else
		ctx = ctx_in;

	k     = BN_new();	/* this value is later returned in *kinvp */
	r     = BN_new();	/* this value is later returned in *rp    */
	order = BN_new();
	X     = BN_new();
	if (!k || !r || !order || !X)
	{
		ECDSAerr(ECDSA_F_ECDSA_SIGN_SETUP, ERR_R_MALLOC_FAILURE);
		goto err;
	}
	if ((tmp_point = EC_POINT_new(group)) == NULL)
	{
		ECDSAerr(ECDSA_F_ECDSA_SIGN_SETUP, ERR_R_EC_LIB);
		goto err;
	}
	if (!EC_GROUP_get_order(group, order, ctx))
	{
		ECDSAerr(ECDSA_F_ECDSA_SIGN_SETUP, ERR_R_EC_LIB);
		goto err;
	}
	
	do
	{
		/* get random k */	
		do
			if (!BN_rand_range(k, order))
			{
				ECDSAerr(ECDSA_F_ECDSA_SIGN_SETUP,
				 ECDSA_R_RANDOM_NUMBER_GENERATION_FAILED);	
				goto err;
			}
		while (BN_is_zero(k));

		/* compute r the x-coordinate of generator * k */
		if (!EC_POINT_mul(group, tmp_point, k, NULL, NULL, ctx))
		{
			ECDSAerr(ECDSA_F_ECDSA_SIGN_SETUP, ERR_R_EC_LIB);
			goto err;
		}
		if (EC_METHOD_get_field_type(EC_GROUP_method_of(group)) == NID_X9_62_prime_field)
		{
			if (!EC_POINT_get_affine_coordinates_GFp(group,
				tmp_point, X, NULL, ctx))
			{
				ECDSAerr(ECDSA_F_ECDSA_SIGN_SETUP,ERR_R_EC_LIB);
				goto err;
			}
		}
		else /* NID_X9_62_characteristic_two_field */
		{
			if (!EC_POINT_get_affine_coordinates_GF2m(group,
				tmp_point, X, NULL, ctx))
			{
				ECDSAerr(ECDSA_F_ECDSA_SIGN_SETUP,ERR_R_EC_LIB);
				goto err;
			}
		}
		if (!BN_nnmod(r, X, order, ctx))
		{
			ECDSAerr(ECDSA_F_ECDSA_SIGN_SETUP, ERR_R_BN_LIB);
			goto err;
		}
	}
	while (BN_is_zero(r));

	/* compute the inverse of k */
	if (!BN_mod_inverse(k, k, order, ctx))
	{
		ECDSAerr(ECDSA_F_ECDSA_SIGN_SETUP, ERR_R_BN_LIB);
		goto err;	
	}
	/* clear old values if necessary */
	if (*rp != NULL)
		BN_clear_free(*rp);
	if (*kinvp != NULL) 
//.........这里部分代码省略.........

开发者ID:12019，项目名称:vendor_st-ericsson_u8500，代码行数:101，代码来源:ecs_ossl.c

示例9: ecdsa_do_verify


//.........这里部分代码省略.........
		goto err;
	}
	
	if (!EC_GROUP_get_order(group, order, ctx))
	{
		ECDSAerr(ECDSA_F_ECDSA_DO_VERIFY, ERR_R_EC_LIB);
		goto err;
	}
	if (8 * dgst_len > BN_num_bits(order))
	{
		/* XXX
		 * 
		 * Should provide for optional hash truncation:
		 * Keep the BN_num_bits(order) leftmost bits of dgst
		 * (see March 2006 FIPS 186-3 draft, which has a few
		 * confusing errors in this part though)
		 */

		ECDSAerr(ECDSA_F_ECDSA_DO_VERIFY,
			ECDSA_R_DATA_TOO_LARGE_FOR_KEY_SIZE);
		ret = 0;
		goto err;
	}

	if (BN_is_zero(sig->r)          || BN_is_negative(sig->r) || 
	    BN_ucmp(sig->r, order) >= 0 || BN_is_zero(sig->s)  ||
	    BN_is_negative(sig->s)      || BN_ucmp(sig->s, order) >= 0)
	{
		ECDSAerr(ECDSA_F_ECDSA_DO_VERIFY, ECDSA_R_BAD_SIGNATURE);
		ret = 0;	/* signature is invalid */
		goto err;
	}
	/* calculate tmp1 = inv(S) mod order */
	if (!BN_mod_inverse(u2, sig->s, order, ctx))
	{
		ECDSAerr(ECDSA_F_ECDSA_DO_VERIFY, ERR_R_BN_LIB);
		goto err;
	}
	/* digest -> m */
	if (!BN_bin2bn(dgst, dgst_len, m))
	{
		ECDSAerr(ECDSA_F_ECDSA_DO_VERIFY, ERR_R_BN_LIB);
		goto err;
	}
	/* u1 = m * tmp mod order */
	if (!BN_mod_mul(u1, m, u2, order, ctx))
	{
		ECDSAerr(ECDSA_F_ECDSA_DO_VERIFY, ERR_R_BN_LIB);
		goto err;
	}
	/* u2 = r * w mod q */
	if (!BN_mod_mul(u2, sig->r, u2, order, ctx))
	{
		ECDSAerr(ECDSA_F_ECDSA_DO_VERIFY, ERR_R_BN_LIB);
		goto err;
	}

	if ((point = EC_POINT_new(group)) == NULL)
	{
		ECDSAerr(ECDSA_F_ECDSA_DO_VERIFY, ERR_R_MALLOC_FAILURE);
		goto err;
	}
	if (!EC_POINT_mul(group, point, u1, pub_key, u2, ctx))
	{
		ECDSAerr(ECDSA_F_ECDSA_DO_VERIFY, ERR_R_EC_LIB);
		goto err;
	}
	if (EC_METHOD_get_field_type(EC_GROUP_method_of(group)) == NID_X9_62_prime_field)
	{
		if (!EC_POINT_get_affine_coordinates_GFp(group,
			point, X, NULL, ctx))
		{
			ECDSAerr(ECDSA_F_ECDSA_DO_VERIFY, ERR_R_EC_LIB);
			goto err;
		}
	}
	else /* NID_X9_62_characteristic_two_field */
	{
		if (!EC_POINT_get_affine_coordinates_GF2m(group,
			point, X, NULL, ctx))
		{
			ECDSAerr(ECDSA_F_ECDSA_DO_VERIFY, ERR_R_EC_LIB);
			goto err;
		}
	}
	
	if (!BN_nnmod(u1, X, order, ctx))
	{
		ECDSAerr(ECDSA_F_ECDSA_DO_VERIFY, ERR_R_BN_LIB);
		goto err;
	}
	/*  if the signature is correct u1 is equal to sig->r */
	ret = (BN_ucmp(u1, sig->r) == 0);
err:
	BN_CTX_end(ctx);
	BN_CTX_free(ctx);
	if (point)
		EC_POINT_free(point);
	return ret;
}

开发者ID:LucidOne，项目名称:Rovio，代码行数:101，代码来源:ecs_ossl.c

示例10: test_ecdh_curve

static int test_ecdh_curve(int nid, const char *text, BN_CTX *ctx, BIO *out) {

	printf("in ecdh test\n");
	EC_KEY *a = NULL;    //EC_KEY is a structure
	EC_KEY *b = NULL;
	BIGNUM *x_a = NULL, *y_a = NULL, *x_b = NULL, *y_b = NULL;
	char buf[12];
	unsigned char *abuf = NULL, *bbuf = NULL;
	int i, alen, blen, aout, bout, ret = 0;
	const EC_GROUP *group;

	a = EC_KEY_new_by_curve_name(nid);
// creates a new key according to the curve specified
//it fills in the EC_KEY structure // use function called EC_KEY *EC_KEY_new(void)
//also use a function called EC_GROUP_new_by_curve_name() creates a EC_GROUP structure specified by a curve name (in form of a NID) */
// the group returned is set in the EC_KEY structure.

	b = EC_KEY_new_by_curve_name(nid);
	if (a == NULL || b == NULL)
		goto err;

	group = EC_KEY_get0_group(a); //returns the EC_GROUP structure created by the EC_KEY structure
//EC_GROUP structure is present in the EC_KEY structure.

	if ((x_a = BN_new()) == NULL)
		goto err;
	//BN_new returns a pointer to the bignum
	if ((y_a = BN_new()) == NULL)
		goto err;
	if ((x_b = BN_new()) == NULL)
		goto err;
	if ((y_b = BN_new()) == NULL)
		goto err;

	BIO_puts(out, "Testing key generation with ");
	BIO_puts(out, text);

#ifdef NOISY
	printf ("noisy");
	BIO_puts(out,"\n");
	BIO_puts(out,"\n");
	BIO_puts(out,"\n");
#else
	BIO_flush(out);
#endif

//public key number one is created here

	if (!EC_KEY_generate_key(a))
		goto err;
	//pass the filled EC_KEY structure and it will create a public or private ec key.
//it places the key in a->priv_key a->pub_key   /// PUBLIC AND PVT KEYS ARE GENERATED BY THE SCALAR MULTIPLICATION
	printf("\n1 ) generating keys\n");

	if (EC_METHOD_get_field_type(EC_GROUP_method_of(group))
			== NID_X9_62_prime_field) {
		if (!EC_POINT_get_affine_coordinates_GFp(group,
				EC_KEY_get0_public_key(a), x_a, y_a, ctx))
			goto err;
	}
	//returns the public key
	else {
		if (!EC_POINT_get_affine_coordinates_GF2m(group,
				EC_KEY_get0_public_key(a), x_a, y_a, ctx))
			goto err;
	}

	//BN_print_fp(stdout, a->pub_key);
	printf("private key is : ");
	BN_print_fp(stdout, EC_KEY_get0_private_key(a));
	printf("\nAffine cordinates x:");
	BN_print_fp(stdout, x_a);
	printf("\nAffine cordinates y:");
	BN_print_fp(stdout, y_a);

	printf(
			"\n2 ) generated keys , generated affine points x and y , and also determided the primse brinary case\n");

#ifdef NOISY
	printf("no generation");
	BIO_puts(out,"  pri 1=");
	BN_print(out,a->priv_key);
	BIO_puts(out,"\n  pub 1=");
	BN_print(out,x_a);
	BIO_puts(out,",");
	BN_print(out,y_a);
	BIO_puts(out,"\n");
#else
	BIO_printf(out, " .");
	BIO_flush(out);
#endif

//public key number two is created here

	if (!EC_KEY_generate_key(b))
		goto err;

	if (EC_METHOD_get_field_type(EC_GROUP_method_of(group))
			== NID_X9_62_prime_field) {
		if (!EC_POINT_get_affine_coordinates_GFp(group,
//.........这里部分代码省略.........

开发者ID:AIdrifter，项目名称:EllipticCurveCryptography，代码行数:101，代码来源:ecdh.c

示例11: ecdh_simple_compute_key

/*-
 * This implementation is based on the following primitives in the IEEE 1363 standard:
 *  - ECKAS-DH1
 *  - ECSVDP-DH
 */
int ecdh_simple_compute_key(unsigned char **pout, size_t *poutlen,
                            const EC_POINT *pub_key, const EC_KEY *ecdh)
{
    BN_CTX *ctx;
    EC_POINT *tmp = NULL;
    BIGNUM *x = NULL, *y = NULL;
    const BIGNUM *priv_key;
    const EC_GROUP *group;
    int ret = 0;
    size_t buflen, len;
    unsigned char *buf = NULL;

    if ((ctx = BN_CTX_new()) == NULL)
        goto err;
    BN_CTX_start(ctx);
    x = BN_CTX_get(ctx);
    y = BN_CTX_get(ctx);

    priv_key = EC_KEY_get0_private_key(ecdh);
    if (priv_key == NULL) {
        ECerr(EC_F_ECDH_SIMPLE_COMPUTE_KEY, EC_R_NO_PRIVATE_VALUE);
        goto err;
    }

    group = EC_KEY_get0_group(ecdh);

    if (EC_KEY_get_flags(ecdh) & EC_FLAG_COFACTOR_ECDH) {
        if (!EC_GROUP_get_cofactor(group, x, NULL) ||
            !BN_mul(x, x, priv_key, ctx)) {
            ECerr(EC_F_ECDH_SIMPLE_COMPUTE_KEY, ERR_R_MALLOC_FAILURE);
            goto err;
        }
        priv_key = x;
    }

    if ((tmp = EC_POINT_new(group)) == NULL) {
        ECerr(EC_F_ECDH_SIMPLE_COMPUTE_KEY, ERR_R_MALLOC_FAILURE);
        goto err;
    }

    if (!EC_POINT_mul(group, tmp, NULL, pub_key, priv_key, ctx)) {
        ECerr(EC_F_ECDH_SIMPLE_COMPUTE_KEY, EC_R_POINT_ARITHMETIC_FAILURE);
        goto err;
    }

    if (EC_METHOD_get_field_type(EC_GROUP_method_of(group)) ==
        NID_X9_62_prime_field) {
        if (!EC_POINT_get_affine_coordinates_GFp(group, tmp, x, y, ctx)) {
            ECerr(EC_F_ECDH_SIMPLE_COMPUTE_KEY, EC_R_POINT_ARITHMETIC_FAILURE);
            goto err;
        }
    }
#ifndef OPENSSL_NO_EC2M
    else {
        if (!EC_POINT_get_affine_coordinates_GF2m(group, tmp, x, y, ctx)) {
            ECerr(EC_F_ECDH_SIMPLE_COMPUTE_KEY, EC_R_POINT_ARITHMETIC_FAILURE);
            goto err;
        }
    }
#endif

    buflen = (EC_GROUP_get_degree(group) + 7) / 8;
    len = BN_num_bytes(x);
    if (len > buflen) {
        ECerr(EC_F_ECDH_SIMPLE_COMPUTE_KEY, ERR_R_INTERNAL_ERROR);
        goto err;
    }
    if ((buf = OPENSSL_malloc(buflen)) == NULL) {
        ECerr(EC_F_ECDH_SIMPLE_COMPUTE_KEY, ERR_R_MALLOC_FAILURE);
        goto err;
    }

    memset(buf, 0, buflen - len);
    if (len != (size_t)BN_bn2bin(x, buf + buflen - len)) {
        ECerr(EC_F_ECDH_SIMPLE_COMPUTE_KEY, ERR_R_BN_LIB);
        goto err;
    }

    *pout = buf;
    *poutlen = buflen;
    buf = NULL;

    ret = 1;

 err:
    EC_POINT_free(tmp);
    if (ctx)
        BN_CTX_end(ctx);
    BN_CTX_free(ctx);
    OPENSSL_free(buf);
    return ret;
}

开发者ID:277800076，项目名称:openssl，代码行数:97，代码来源:ecdh_ossl.c

示例12: ecdsa_sign_setup

static int ecdsa_sign_setup(EC_KEY *eckey, BN_CTX *ctx_in, BIGNUM **kinvp,
		BIGNUM **rp)
{
	BN_CTX   *ctx = NULL;
	BIGNUM	 *k = NULL, *r = NULL, *order = NULL, *X = NULL;
	EC_POINT *tmp_point=NULL;
	const EC_GROUP *group;
	int 	 ret = 0;

	if (eckey == NULL || (group = EC_KEY_get0_group(eckey)) == NULL)
	{
		ECDSAerr(ECDSA_F_ECDSA_SIGN_SETUP, ERR_R_PASSED_NULL_PARAMETER);
		return 0;
	}

	if (ctx_in == NULL) 
	{
		if ((ctx = BN_CTX_new()) == NULL)
		{
			ECDSAerr(ECDSA_F_ECDSA_SIGN_SETUP,ERR_R_MALLOC_FAILURE);
			return 0;
		}
	}
	else
		ctx = ctx_in;

	k     = BN_new();	/* this value is later returned in *kinvp */
	r     = BN_new();	/* this value is later returned in *rp    */
	order = BN_new();
	X     = BN_new();
	if (!k || !r || !order || !X)
	{
		ECDSAerr(ECDSA_F_ECDSA_SIGN_SETUP, ERR_R_MALLOC_FAILURE);
		goto err;
	}
	if ((tmp_point = EC_POINT_new(group)) == NULL)
	{
		ECDSAerr(ECDSA_F_ECDSA_SIGN_SETUP, ERR_R_EC_LIB);
		goto err;
	}
	if (!EC_GROUP_get_order(group, order, ctx))
	{
		ECDSAerr(ECDSA_F_ECDSA_SIGN_SETUP, ERR_R_EC_LIB);
		goto err;
	}

#ifdef OPENSSL_FIPS
	if (!fips_check_ec_prng(eckey))
		goto err;
#endif
	
	do
	{
		/* get random k */	
		do
			if (!BN_rand_range(k, order))
			{
				ECDSAerr(ECDSA_F_ECDSA_SIGN_SETUP,
				 ECDSA_R_RANDOM_NUMBER_GENERATION_FAILED);	
				goto err;
			}
		while (BN_is_zero(k));

#ifdef ECDSA_POINT_MUL_NO_CONSTTIME
		/* We do not want timing information to leak the length of k,
		 * so we compute G*k using an equivalent scalar of fixed
		 * bit-length. */

		if (!BN_add(k, k, order)) goto err;
		if (BN_num_bits(k) <= BN_num_bits(order))
			if (!BN_add(k, k, order)) goto err;
#endif /* def(ECDSA_POINT_MUL_NO_CONSTTIME) */

		/* compute r the x-coordinate of generator * k */
		if (!EC_POINT_mul(group, tmp_point, k, NULL, NULL, ctx))
		{
			ECDSAerr(ECDSA_F_ECDSA_SIGN_SETUP, ERR_R_EC_LIB);
			goto err;
		}
		if (EC_METHOD_get_field_type(EC_GROUP_method_of(group)) == NID_X9_62_prime_field)
		{
			if (!EC_POINT_get_affine_coordinates_GFp(group,
				tmp_point, X, NULL, ctx))
			{
				ECDSAerr(ECDSA_F_ECDSA_SIGN_SETUP,ERR_R_EC_LIB);
				goto err;
			}
		}
#ifndef OPENSSL_NO_EC2M
		else /* NID_X9_62_characteristic_two_field */
		{
			if (!EC_POINT_get_affine_coordinates_GF2m(group,
				tmp_point, X, NULL, ctx))
			{
				ECDSAerr(ECDSA_F_ECDSA_SIGN_SETUP,ERR_R_EC_LIB);
				goto err;
			}
		}
#endif
		if (!BN_nnmod(r, X, order, ctx))
//.........这里部分代码省略.........

开发者ID:izick，项目名称:eme，代码行数:101，代码来源:ecs_ossl.c

示例13: EC_GROUP_cmp

int EC_GROUP_cmp(const EC_GROUP *a, const EC_GROUP *b, BN_CTX *ctx)
	{
	int    r = 0;
	BIGNUM *a1, *a2, *a3, *b1, *b2, *b3;
	BN_CTX *ctx_new = NULL;

	/* compare the field types*/
	if (EC_METHOD_get_field_type(EC_GROUP_method_of(a)) !=
	    EC_METHOD_get_field_type(EC_GROUP_method_of(b)))
		return 1;
	/* compare the curve name (if present) */
	if (EC_GROUP_get_curve_name(a) && EC_GROUP_get_curve_name(b) &&
	    EC_GROUP_get_curve_name(a) == EC_GROUP_get_curve_name(b))
		return 0;

	if (!ctx)
		ctx_new = ctx = BN_CTX_new();
	if (!ctx)
		return -1;
	
	BN_CTX_start(ctx);
	a1 = BN_CTX_get(ctx);
	a2 = BN_CTX_get(ctx);
	a3 = BN_CTX_get(ctx);
	b1 = BN_CTX_get(ctx);
	b2 = BN_CTX_get(ctx);
	b3 = BN_CTX_get(ctx);
	if (!b3)
		{
		BN_CTX_end(ctx);
		if (ctx_new)
			BN_CTX_free(ctx);
		return -1;
		}

	/* XXX This approach assumes that the external representation
	 * of curves over the same field type is the same.
	 */
	if (!a->meth->group_get_curve(a, a1, a2, a3, ctx) ||
	    !b->meth->group_get_curve(b, b1, b2, b3, ctx))
		r = 1;

	if (r || BN_cmp(a1, b1) || BN_cmp(a2, b2) || BN_cmp(a3, b3))
		r = 1;

	/* XXX EC_POINT_cmp() assumes that the methods are equal */
	if (r || EC_POINT_cmp(a, EC_GROUP_get0_generator(a),
	    EC_GROUP_get0_generator(b), ctx))
		r = 1;

	if (!r)
		{
		/* compare the order and cofactor */
		if (!EC_GROUP_get_order(a, a1, ctx) ||
		    !EC_GROUP_get_order(b, b1, ctx) ||
		    !EC_GROUP_get_cofactor(a, a2, ctx) ||
		    !EC_GROUP_get_cofactor(b, b2, ctx))
			{
			BN_CTX_end(ctx);
			if (ctx_new)
				BN_CTX_free(ctx);
			return -1;
			}
		if (BN_cmp(a1, b1) || BN_cmp(a2, b2))
			r = 1;
		}

	BN_CTX_end(ctx);
	if (ctx_new)
		BN_CTX_free(ctx);

	return r;
	}

开发者ID:LucidOne，项目名称:Rovio，代码行数:73，代码来源:ec_lib.c

示例14: ECerr

EC_KEY *EC_KEY_copy(EC_KEY *dest, const EC_KEY *src)
{
    if (dest == NULL || src == NULL) {
        ECerr(EC_F_EC_KEY_COPY, ERR_R_PASSED_NULL_PARAMETER);
        return NULL;
    }
    if (src->meth != dest->meth) {
        if (dest->meth->finish != NULL)
            dest->meth->finish(dest);
        if (dest->group && dest->group->meth->keyfinish)
            dest->group->meth->keyfinish(dest);
#ifndef OPENSSL_NO_ENGINE
        if (ENGINE_finish(dest->engine) == 0)
            return 0;
        dest->engine = NULL;
#endif
    }
    /* copy the parameters */
    if (src->group != NULL) {
        const EC_METHOD *meth = EC_GROUP_method_of(src->group);
        /* clear the old group */
        EC_GROUP_free(dest->group);
        dest->group = EC_GROUP_new(meth);
        if (dest->group == NULL)
            return NULL;
        if (!EC_GROUP_copy(dest->group, src->group))
            return NULL;

        /*  copy the public key */
        if (src->pub_key != NULL) {
            EC_POINT_free(dest->pub_key);
            dest->pub_key = EC_POINT_new(src->group);
            if (dest->pub_key == NULL)
                return NULL;
            if (!EC_POINT_copy(dest->pub_key, src->pub_key))
                return NULL;
        }
        /* copy the private key */
        if (src->priv_key != NULL) {
            if (dest->priv_key == NULL) {
                dest->priv_key = BN_new();
                if (dest->priv_key == NULL)
                    return NULL;
            }
            if (!BN_copy(dest->priv_key, src->priv_key))
                return NULL;
            if (src->group->meth->keycopy
                && src->group->meth->keycopy(dest, src) == 0)
                return NULL;
        }
    }


    /* copy the rest */
    dest->enc_flag = src->enc_flag;
    dest->conv_form = src->conv_form;
    dest->version = src->version;
    dest->flags = src->flags;
    if (!CRYPTO_dup_ex_data(CRYPTO_EX_INDEX_EC_KEY,
                            &dest->ex_data, &src->ex_data))
        return NULL;

    if (src->meth != dest->meth) {
#ifndef OPENSSL_NO_ENGINE
        if (src->engine != NULL && ENGINE_init(src->engine) == 0)
            return NULL;
        dest->engine = src->engine;
#endif
        dest->meth = src->meth;
    }

    if (src->meth->copy != NULL && src->meth->copy(dest, src) == 0)
        return NULL;

    return dest;
}

开发者ID:PeterMosmans，项目名称:openssl，代码行数:76，代码来源:ec_key.c

示例15: ecdh_cavs_kat

/*
 * NIST SP800-56A co-factor ECDH tests.
 * KATs taken from NIST documents with parameters:
 *
 * - (QCAVSx,QCAVSy) is the public key for CAVS.
 * - dIUT is the private key for IUT.
 * - (QIUTx,QIUTy) is the public key for IUT.
 * - ZIUT is the shared secret KAT.
 *
 * CAVS: Cryptographic Algorithm Validation System
 * IUT: Implementation Under Test
 *
 * This function tests two things:
 *
 * 1. dIUT * G = (QIUTx,QIUTy)
 *    i.e. public key for IUT computes correctly.
 * 2. x-coord of cofactor * dIUT * (QCAVSx,QCAVSy) = ZIUT
 *    i.e. co-factor ECDH key computes correctly.
 *
 * returns zero on failure or unsupported curve. One otherwise.
 */
static int ecdh_cavs_kat(BIO *out, const ecdh_cavs_kat_t *kat)
{
    int rv = 0, is_char_two = 0;
    EC_KEY *key1 = NULL;
    EC_POINT *pub = NULL;
    const EC_GROUP *group = NULL;
    BIGNUM *bnz = NULL, *x = NULL, *y = NULL;
    unsigned char *Ztmp = NULL, *Z = NULL;
    size_t Ztmplen, Zlen;
    BIO_puts(out, "Testing ECC CDH Primitive SP800-56A with ");
    BIO_puts(out, OBJ_nid2sn(kat->nid));

    /* dIUT is IUT's private key */
    if ((key1 = mk_eckey(kat->nid, kat->dIUT)) == NULL)
        goto err;
    /* these are cofactor ECDH KATs */
    EC_KEY_set_flags(key1, EC_FLAG_COFACTOR_ECDH);

    if ((group = EC_KEY_get0_group(key1)) == NULL)
        goto err;
    if ((pub = EC_POINT_new(group)) == NULL)
        goto err;

    if (EC_METHOD_get_field_type(EC_GROUP_method_of(group)) == NID_X9_62_characteristic_two_field)
        is_char_two = 1;

    /* (QIUTx, QIUTy) is IUT's public key */
    if(!BN_hex2bn(&x, kat->QIUTx))
        goto err;
    if(!BN_hex2bn(&y, kat->QIUTy))
        goto err;
    if (is_char_two) {
#ifdef OPENSSL_NO_EC2M
        goto err;
#else
        if (!EC_POINT_set_affine_coordinates_GF2m(group, pub, x, y, NULL))
            goto err;
#endif
    }
    else {
        if (!EC_POINT_set_affine_coordinates_GFp(group, pub, x, y, NULL))
            goto err;
    }
    /* dIUT * G = (QIUTx, QIUTy) should hold */
    if (EC_POINT_cmp(group, EC_KEY_get0_public_key(key1), pub, NULL))
        goto err;

    /* (QCAVSx, QCAVSy) is CAVS's public key */
    if(!BN_hex2bn(&x, kat->QCAVSx))
        goto err;
    if(!BN_hex2bn(&y, kat->QCAVSy))
        goto err;
    if (is_char_two) {
#ifdef OPENSSL_NO_EC2M
        goto err;
#else
        if (!EC_POINT_set_affine_coordinates_GF2m(group, pub, x, y, NULL))
            goto err;
#endif
    }
    else {
        if (!EC_POINT_set_affine_coordinates_GFp(group, pub, x, y, NULL))
            goto err;
    }

    /* ZIUT is the shared secret */
    if(!BN_hex2bn(&bnz, kat->ZIUT))
        goto err;
    Ztmplen = (EC_GROUP_get_degree(EC_KEY_get0_group(key1)) + 7) / 8;
    Zlen = BN_num_bytes(bnz);
    if (Zlen > Ztmplen)
        goto err;
    if((Ztmp = OPENSSL_zalloc(Ztmplen)) == NULL)
        goto err;
    if((Z = OPENSSL_zalloc(Ztmplen)) == NULL)
        goto err;
    if(!BN_bn2binpad(bnz, Z, Ztmplen))
        goto err;
    if (!ECDH_compute_key(Ztmp, Ztmplen, pub, key1, 0))
//.........这里部分代码省略.........

开发者ID:277800076，项目名称:openssl，代码行数:101，代码来源:ecdhtest.c

示例16: EC_GROUP_cmp

int EC_GROUP_cmp(const EC_GROUP *a, const EC_GROUP *b, BN_CTX *ctx)
{
    int r = 0;
    BIGNUM *a1, *a2, *a3, *b1, *b2, *b3;
    BN_CTX *ctx_new = NULL;

    /* compare the field types */
    if (EC_METHOD_get_field_type(EC_GROUP_method_of(a)) !=
        EC_METHOD_get_field_type(EC_GROUP_method_of(b)))
        return 1;
    /* compare the curve name (if present in both) */
    if (EC_GROUP_get_curve_name(a) && EC_GROUP_get_curve_name(b) &&
        EC_GROUP_get_curve_name(a) != EC_GROUP_get_curve_name(b))
        return 1;
    if (a->meth->flags & EC_FLAGS_CUSTOM_CURVE)
        return 0;

    if (ctx == NULL)
        ctx_new = ctx = BN_CTX_new();
    if (ctx == NULL)
        return -1;

    BN_CTX_start(ctx);
    a1 = BN_CTX_get(ctx);
    a2 = BN_CTX_get(ctx);
    a3 = BN_CTX_get(ctx);
    b1 = BN_CTX_get(ctx);
    b2 = BN_CTX_get(ctx);
    b3 = BN_CTX_get(ctx);
    if (b3 == NULL) {
        BN_CTX_end(ctx);
        BN_CTX_free(ctx_new);
        return -1;
    }

    /*
     * XXX This approach assumes that the external representation of curves
     * over the same field type is the same.
     */
    if (!a->meth->group_get_curve(a, a1, a2, a3, ctx) ||
        !b->meth->group_get_curve(b, b1, b2, b3, ctx))
        r = 1;

    if (r || BN_cmp(a1, b1) || BN_cmp(a2, b2) || BN_cmp(a3, b3))
        r = 1;

    /* XXX EC_POINT_cmp() assumes that the methods are equal */
    if (r || EC_POINT_cmp(a, EC_GROUP_get0_generator(a),
                          EC_GROUP_get0_generator(b), ctx))
        r = 1;

    if (!r) {
        const BIGNUM *ao, *bo, *ac, *bc;
        /* compare the order and cofactor */
        ao = EC_GROUP_get0_order(a);
        bo = EC_GROUP_get0_order(b);
        ac = EC_GROUP_get0_cofactor(a);
        bc = EC_GROUP_get0_cofactor(b);
        if (ao == NULL || bo == NULL) {
            BN_CTX_end(ctx);
            BN_CTX_free(ctx_new);
            return -1;
        }
        if (BN_cmp(ao, bo) || BN_cmp(ac, bc))
            r = 1;
    }

    BN_CTX_end(ctx);
    BN_CTX_free(ctx_new);

    return r;
}

开发者ID:Castaglia，项目名称:openssl，代码行数:72，代码来源:ec_lib.c

示例17: EC_get_builtin_curves

builtin_curves::builtin_curves()
{
	int i, num_curves = EC_get_builtin_curves(NULL, 0);
	EC_builtin_curve *curves = (EC_builtin_curve*)OPENSSL_malloc(
		(int)(sizeof(EC_builtin_curve) *num_curves));

	check_oom(curves);

	BIGNUM *order = BN_new();
	check_oom(order);

	EC_get_builtin_curves(curves, num_curves);

	for (i=0; i< num_curves; i++) {
		size_t j;
		int flag = 0, nid = curves[i].nid;
		unsigned long type = 0;

		for (j=0; j<ARRAY_SIZE(x962_curve_nids); j++) {
			if (x962_curve_nids[j] == nid) {
				flag = CURVE_X962;
				break;
			}
		}
		if (!flag) {
			for (j=0; j<ARRAY_SIZE(other_curve_nids); j++) {
				if (other_curve_nids[j] == nid) {
					flag = CURVE_OTHER;
					break;
				}
			}
		}
		if (!flag)
			continue;

		EC_GROUP *group = EC_GROUP_new_by_curve_name(nid);
		EC_GROUP_get_order(group, order, NULL);

		switch (EC_METHOD_get_field_type(EC_GROUP_method_of(group))) {
		case NID_X9_62_prime_field:
			type = CKF_EC_F_P;
			break;
		case NID_X9_62_characteristic_two_field:
			type = CKF_EC_F_2M;
			break;
		default:
			continue;
		}
#undef PRINT_KNOWN_CURVES
#ifdef PRINT_KNOWN_CURVES
		fprintf(stderr, "%50s %27s %20s %s\n",
			curves[i].comment, OBJ_nid2sn(nid),
			CCHAR(OBJ_obj2QString(OBJ_nid2obj(nid), 1)),
			type == CKF_EC_F_P ? "Fp" : "F2m");
#endif
		append(builtin_curve(nid, QString(curves[i].comment),
			BN_num_bits(order), flag, type));
                EC_GROUP_free(group);
	}
	BN_free(order);
}

开发者ID:Gerberus，项目名称:xca，代码行数:61，代码来源:builtin_curves.cpp

示例18: ECPKParameters_print

int 
ECPKParameters_print(BIO * bp, const EC_GROUP * x, int off)
{
	unsigned char *buffer = NULL;
	size_t buf_len = 0, i;
	int ret = 0, reason = ERR_R_BIO_LIB;
	BN_CTX *ctx = NULL;
	const EC_POINT *point = NULL;
	BIGNUM *p = NULL, *a = NULL, *b = NULL, *gen = NULL, *order = NULL,
	*cofactor = NULL;
	const unsigned char *seed;
	size_t seed_len = 0;
	const char *nname;

	static const char *gen_compressed = "Generator (compressed):";
	static const char *gen_uncompressed = "Generator (uncompressed):";
	static const char *gen_hybrid = "Generator (hybrid):";

	if (!x) {
		reason = ERR_R_PASSED_NULL_PARAMETER;
		goto err;
	}
	ctx = BN_CTX_new();
	if (ctx == NULL) {
		reason = ERR_R_MALLOC_FAILURE;
		goto err;
	}
	if (EC_GROUP_get_asn1_flag(x)) {
		/* the curve parameter are given by an asn1 OID */
		int nid;

		if (!BIO_indent(bp, off, 128))
			goto err;

		nid = EC_GROUP_get_curve_name(x);
		if (nid == 0)
			goto err;

		if (BIO_printf(bp, "ASN1 OID: %s", OBJ_nid2sn(nid)) <= 0)
			goto err;
		if (BIO_printf(bp, "\n") <= 0)
			goto err;

		nname = EC_curve_nid2nist(nid);
		if (nname) {
			if (!BIO_indent(bp, off, 128))
				goto err;
			if (BIO_printf(bp, "NIST CURVE: %s\n", nname) <= 0)
				goto err;
		}
	} else {
		/* explicit parameters */
		int is_char_two = 0;
		point_conversion_form_t form;
		int tmp_nid = EC_METHOD_get_field_type(EC_GROUP_method_of(x));

		if (tmp_nid == NID_X9_62_characteristic_two_field)
			is_char_two = 1;

		if ((p = BN_new()) == NULL || (a = BN_new()) == NULL ||
		    (b = BN_new()) == NULL || (order = BN_new()) == NULL ||
		    (cofactor = BN_new()) == NULL) {
			reason = ERR_R_MALLOC_FAILURE;
			goto err;
		}
#ifndef OPENSSL_NO_EC2M
		if (is_char_two) {
			if (!EC_GROUP_get_curve_GF2m(x, p, a, b, ctx)) {
				reason = ERR_R_EC_LIB;
				goto err;
			}
		} else		/* prime field */
#endif
		{
			if (!EC_GROUP_get_curve_GFp(x, p, a, b, ctx)) {
				reason = ERR_R_EC_LIB;
				goto err;
			}
		}

		if ((point = EC_GROUP_get0_generator(x)) == NULL) {
			reason = ERR_R_EC_LIB;
			goto err;
		}
		if (!EC_GROUP_get_order(x, order, NULL) ||
		    !EC_GROUP_get_cofactor(x, cofactor, NULL)) {
			reason = ERR_R_EC_LIB;
			goto err;
		}
		form = EC_GROUP_get_point_conversion_form(x);

		if ((gen = EC_POINT_point2bn(x, point,
			    form, NULL, ctx)) == NULL) {
			reason = ERR_R_EC_LIB;
			goto err;
		}
		buf_len = (size_t) BN_num_bytes(p);
		if (buf_len < (i = (size_t) BN_num_bytes(a)))
			buf_len = i;
		if (buf_len < (i = (size_t) BN_num_bytes(b)))
//.........这里部分代码省略.........

开发者ID:2trill2spill，项目名称:nextgen，代码行数:101，代码来源:eck_prn.c

示例19: ecdsa_sign_setup

static int ecdsa_sign_setup(EC_KEY *eckey, BN_CTX *ctx_in, BIGNUM **kinvp,
                            BIGNUM **rp)
{
    BN_CTX *ctx = NULL;
    BIGNUM *k = NULL, *r = NULL, *order = NULL, *X = NULL;
    EC_POINT *tmp_point = NULL;
    const EC_GROUP *group;
    int ret = 0;
    int order_bits;

    if (eckey == NULL || (group = EC_KEY_get0_group(eckey)) == NULL) {
        ECDSAerr(ECDSA_F_ECDSA_SIGN_SETUP, ERR_R_PASSED_NULL_PARAMETER);
        return 0;
    }

    if (ctx_in == NULL) {
        if ((ctx = BN_CTX_new()) == NULL) {
            ECDSAerr(ECDSA_F_ECDSA_SIGN_SETUP, ERR_R_MALLOC_FAILURE);
            return 0;
        }
    } else
        ctx = ctx_in;

    k = BN_new();               /* this value is later returned in *kinvp */
    r = BN_new();               /* this value is later returned in *rp */
    order = BN_new();
    X = BN_new();
    if (!k || !r || !order || !X) {
        ECDSAerr(ECDSA_F_ECDSA_SIGN_SETUP, ERR_R_MALLOC_FAILURE);
        goto err;
    }
    if ((tmp_point = EC_POINT_new(group)) == NULL) {
        ECDSAerr(ECDSA_F_ECDSA_SIGN_SETUP, ERR_R_EC_LIB);
        goto err;
    }
    if (!EC_GROUP_get_order(group, order, ctx)) {
        ECDSAerr(ECDSA_F_ECDSA_SIGN_SETUP, ERR_R_EC_LIB);
        goto err;
    }

    /* Preallocate space */
    order_bits = BN_num_bits(order);
    if (!BN_set_bit(k, order_bits)
        || !BN_set_bit(r, order_bits)
        || !BN_set_bit(X, order_bits))
        goto err;

    do {
        /* get random k */
        do
            if (!BN_rand_range(k, order)) {
                ECDSAerr(ECDSA_F_ECDSA_SIGN_SETUP,
                         ECDSA_R_RANDOM_NUMBER_GENERATION_FAILED);
                goto err;
            }
        while (BN_is_zero(k)) ;

        /*
         * We do not want timing information to leak the length of k, so we
         * compute G*k using an equivalent scalar of fixed bit-length.
         *
         * We unconditionally perform both of these additions to prevent a
         * small timing information leakage.  We then choose the sum that is
         * one bit longer than the order.  This guarantees the code
         * path used in the constant time implementations elsewhere.
         *
         * TODO: revisit the BN_copy aiming for a memory access agnostic
         * conditional copy.
         */
        if (!BN_add(r, k, order)
            || !BN_add(X, r, order)
            || !BN_copy(k, BN_num_bits(r) > order_bits ? r : X))
            goto err;

        /* compute r the x-coordinate of generator * k */
        if (!EC_POINT_mul(group, tmp_point, k, NULL, NULL, ctx)) {
            ECDSAerr(ECDSA_F_ECDSA_SIGN_SETUP, ERR_R_EC_LIB);
            goto err;
        }
        if (EC_METHOD_get_field_type(EC_GROUP_method_of(group)) ==
            NID_X9_62_prime_field) {
            if (!EC_POINT_get_affine_coordinates_GFp
                (group, tmp_point, X, NULL, ctx)) {
                ECDSAerr(ECDSA_F_ECDSA_SIGN_SETUP, ERR_R_EC_LIB);
                goto err;
            }
        }
#ifndef OPENSSL_NO_EC2M
        else {                  /* NID_X9_62_characteristic_two_field */

            if (!EC_POINT_get_affine_coordinates_GF2m(group,
                                                      tmp_point, X, NULL,
                                                      ctx)) {
                ECDSAerr(ECDSA_F_ECDSA_SIGN_SETUP, ERR_R_EC_LIB);
                goto err;
            }
        }
#endif
        if (!BN_nnmod(r, X, order, ctx)) {
            ECDSAerr(ECDSA_F_ECDSA_SIGN_SETUP, ERR_R_BN_LIB);
//.........这里部分代码省略.........

开发者ID:pavel-pimenov，项目名称:flylinkdc-r5xx，代码行数:101，代码来源:ecs_ossl.c

示例20: ecparam_main


//.........这里部分代码省略.........
    }

    if (new_form)
        EC_GROUP_set_point_conversion_form(group, form);

    if (new_asn1_flag)
        EC_GROUP_set_asn1_flag(group, asn1_flag);

    if (no_seed) {
        EC_GROUP_set_seed(group, NULL, 0);
    }

    if (text) {
        if (!ECPKParameters_print(out, group, 0))
            goto end;
    }

    if (check) {
        if (group == NULL)
            BIO_prin

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C++ EC_GROUP_method_of函数代码示例

示例1: EC_GROUP_get_pentanomial_basis

示例2: EC_GROUP_get_pentanomial_basis

示例3: EC_KEY_copy

示例4: ec_get_pubkey

示例5: EC_GROUP_get_trinomial_basis

示例6: tls1_set_ec_id

示例7: EC_GROUP_get_basis_type

示例8: ecdsa_sign_setup

示例9: ecdsa_do_verify

示例10: test_ecdh_curve

示例11: ecdh_simple_compute_key

示例12: ecdsa_sign_setup

示例13: EC_GROUP_cmp

示例14: ECerr

示例15: ecdh_cavs_kat

示例16: EC_GROUP_cmp

示例17: EC_get_builtin_curves

示例18: ECPKParameters_print

示例19: ecdsa_sign_setup

示例20: ecparam_main

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