Esempi in C++ (Cpp) per EC_EXTRA_DATA

Esempio n. 1

File: ec_key.c Progetto: Heratom/Firefly-project

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;
}

Esempio n. 2

File: ec_lib.c Progetto: 03050903/godot

/* this has 'package' visibility */
void EC_EX_DATA_clear_free_all_data(EC_EXTRA_DATA **ex_data)
{
    EC_EXTRA_DATA *d;

    if (ex_data == NULL)
        return;

    d = *ex_data;
    while (d) {
        EC_EXTRA_DATA *next = d->next;

        d->clear_free_func(d->data);
        OPENSSL_free(d);

        d = next;
    }
    *ex_data = NULL;
}

Esempio n. 3

File: ec_lib.c Progetto: LucidOne/Rovio

int EC_GROUP_copy(EC_GROUP *dest, const EC_GROUP *src)
	{
	EC_EXTRA_DATA *d;

	if (dest->meth->group_copy == 0)
		{
		ECerr(EC_F_EC_GROUP_COPY, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
		return 0;
		}
	if (dest->meth != src->meth)
		{
		ECerr(EC_F_EC_GROUP_COPY, EC_R_INCOMPATIBLE_OBJECTS);
		return 0;
		}
	if (dest == src)
		return 1;
	
	EC_EX_DATA_free_all_data(&dest->extra_data);

	for (d = src->extra_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->extra_data, t, d->dup_func, d->free_func, d->clear_free_func))
			return 0;
		}

	if (src->generator != NULL)
		{
		if (dest->generator == NULL)
			{
			dest->generator = EC_POINT_new(dest);
			if (dest->generator == NULL) return 0;
			}
		if (!EC_POINT_copy(dest->generator, src->generator)) return 0;
		}
	else
		{
		/* src->generator == NULL */
		if (dest->generator != NULL)
			{
			EC_POINT_clear_free(dest->generator);
			dest->generator = NULL;
			}
		}

	if (!BN_copy(&dest->order, &src->order)) return 0;
	if (!BN_copy(&dest->cofactor, &src->cofactor)) return 0;

	dest->curve_name = src->curve_name;
	dest->asn1_flag  = src->asn1_flag;
	dest->asn1_form  = src->asn1_form;

	if (src->seed)
		{
		if (dest->seed)
			OPENSSL_free(dest->seed);
		dest->seed = OPENSSL_malloc(src->seed_len);
		if (dest->seed == NULL)
			return 0;
		if (!memcpy(dest->seed, src->seed, src->seed_len))
			return 0;
		dest->seed_len = src->seed_len;
		}
	else
		{
		if (dest->seed)
			OPENSSL_free(dest->seed);
		dest->seed = NULL;
		dest->seed_len = 0;
		}
	

	return dest->meth->group_copy(dest, src);
	}