#include "rsa.h"
#include "err.h"
#include "engine.h"

//static RSA_METHOD rsa_pkcs1_eay_meth={		//--hgl--20140331--RW mem to const mem
const RSA_METHOD rsa_pkcs1_eay_meth = {
	"Eric Young's PKCS#1 RSA",
	0, /* flags */
	NULL,
	0, /* rsa_sign */
	0, /* rsa_verify */
	NULL /* rsa_keygen */
};
/////////////////////RSA_new////////////////////////////////////////ok

RSA *RSA_new(void)
{
	RSA *r = RSA_new_method(NULL);

	return r;
}

///////////////////RSA_new_method///////////////////////////////////////ok

RSA *RSA_new_method(ENGINE *engine)
{
	RSA *ret;

	ret = (RSA *)OPENSSL_malloc(sizeof(RSA));
	if (ret == NULL) {
		RSAerr(RSA_F_RSA_NEW_METHOD, ERR_R_MALLOC_FAILURE);
		return NULL;
	}

	ret->meth = &rsa_pkcs1_eay_meth;

	ret->pad	   = 0;
	ret->version       = 0;
	ret->n		   = NULL;
	ret->e		   = NULL;
	ret->d		   = NULL;
	ret->p		   = NULL;
	ret->q		   = NULL;
	ret->dmp1	  = NULL;
	ret->dmq1	  = NULL;
	ret->iqmp	  = NULL;
	ret->references    = 1;
	ret->_method_mod_n = NULL;
	ret->_method_mod_p = NULL;
	ret->_method_mod_q = NULL;
	ret->blinding      = NULL;
	ret->mt_blinding   = NULL;
	ret->bignum_data   = NULL;
	ret->flags	 = ret->meth->flags & ~RSA_FLAG_NON_FIPS_ALLOW;
	if (!CRYPTO_new_ex_data(CRYPTO_EX_INDEX_RSA, ret, &ret->ex_data)) {
		OPENSSL_free(ret);
		return (NULL);
	}

	if ((ret->meth->init != NULL) && !ret->meth->init(ret)) {
		CRYPTO_free_ex_data(CRYPTO_EX_INDEX_RSA, ret, &ret->ex_data);
		OPENSSL_free(ret);
		ret = NULL;
	}
	return (ret);
}