* [including the GNU Public Licence.]
*/
+#define OPENSSL_FIPSAPI
+
#include <stdio.h>
#include "cryptlib.h"
#include "bn_lcl.h"
int BN_RECP_CTX_set(BN_RECP_CTX *recp, const BIGNUM *d, BN_CTX *ctx)
{
if (!BN_copy(&(recp->N),d)) return 0;
- if (!BN_zero(&(recp->Nr))) return 0;
+ BN_zero(&(recp->Nr));
recp->num_bits=BN_num_bits(d);
recp->shift=0;
return(1);
if (BN_ucmp(m,&(recp->N)) < 0)
{
- if (!BN_zero(d)) return 0;
+ BN_zero(d);
if (!BN_copy(r,m)) return 0;
BN_CTX_end(ctx);
return(1);
{
if (j++ > 2)
{
- BNerr(BN_F_BN_MOD_MUL_RECIPROCAL,BN_R_BAD_RECIPROCAL);
+ BNerr(BN_F_BN_DIV_RECP,BN_R_BAD_RECIPROCAL);
goto err;
}
if (!BN_usub(r,r,&(recp->N))) goto err;
ret=1;
err:
BN_CTX_end(ctx);
- if(dv) bn_check_top(dv);
- if(rem) bn_check_top(rem);
+ bn_check_top(dv);
+ bn_check_top(rem);
return(ret);
}
int BN_reciprocal(BIGNUM *r, const BIGNUM *m, int len, BN_CTX *ctx)
{
int ret= -1;
- BIGNUM t;
+ BIGNUM *t;
- BN_init(&t);
+ BN_CTX_start(ctx);
+ if((t = BN_CTX_get(ctx)) == NULL) goto err;
- if (!BN_zero(&t)) goto err;
- if (!BN_set_bit(&t,len)) goto err;
+ if (!BN_set_bit(t,len)) goto err;
- if (!BN_div(r,NULL,&t,m,ctx)) goto err;
+ if (!BN_div(r,NULL,t,m,ctx)) goto err;
ret=len;
err:
- BN_free(&t);
bn_check_top(r);
+ BN_CTX_end(ctx);
return(ret);
}