/* -*-c-*-
*
- * $Id: strongprime.c,v 1.2 2000/02/12 18:21:03 mdw Exp $
+ * $Id: strongprime.c,v 1.5 2004/04/08 01:36:15 mdw Exp $
*
* Generate `strong' prime numbers
*
* (c) 1999 Straylight/Edgeware
*/
-/*----- Licensing notice --------------------------------------------------*
+/*----- Licensing notice --------------------------------------------------*
*
* This file is part of Catacomb.
*
* it under the terms of the GNU Library General Public License as
* published by the Free Software Foundation; either version 2 of the
* License, or (at your option) any later version.
- *
+ *
* Catacomb is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Library General Public License for more details.
- *
+ *
* You should have received a copy of the GNU Library General Public
* License along with Catacomb; if not, write to the Free
* Software Foundation, Inc., 59 Temple Place - Suite 330, Boston,
* MA 02111-1307, USA.
*/
-/*----- Revision history --------------------------------------------------*
- *
- * $Log: strongprime.c,v $
- * Revision 1.2 2000/02/12 18:21:03 mdw
- * Overhaul of key management (again).
- *
- * Revision 1.1 1999/12/22 15:51:22 mdw
- * Find `strong' RSA primes using Gordon's algorithm.
- *
- */
-
/*----- Header files ------------------------------------------------------*/
#include <mLib/dstr.h>
/* --- Choose two primes %$s$% and %$t$% of half the required size --- */
+ assert(((void)"nbits too small in strongprime_setup", nbits/2 > BITSLOP));
nbits = nbits/2 - BITSLOP;
c.step = 1;
rr = mprand(rr, nbits, r, 1);
DRESET(&dn); dstr_putf(&dn, "%s [s]", name);
- if ((s = pgen(dn.buf, MP_NEW, rr, event, ectx, n, pgen_filter, &c,
+ if ((s = pgen(dn.buf, MP_NEWSEC, rr, event, ectx, n, pgen_filter, &c,
rabin_iters(nbits), pgen_test, &rb)) == 0)
goto fail_s;
- mp_burn(s);
rr = mprand(rr, nbits, r, 1);
DRESET(&dn); dstr_putf(&dn, "%s [t]", name);
- if ((t = pgen(dn.buf, MP_NEW, rr, event, ectx, n, pgen_filter, &c,
+ if ((t = pgen(dn.buf, MP_NEWSEC, rr, event, ectx, n, pgen_filter, &c,
rabin_iters(nbits), pgen_test, &rb)) == 0)
goto fail_t;
- mp_burn(t);
/* --- Choose a suitable value for %$r = 2it + 1$% for some %$i$% --- */
/* --- Return the result --- */
-#if 0
-fputs("r = ", stdout); mp_writefile(q, stdout, 10); putchar('\n');
-fputs("s = ", stdout); mp_writefile(s, stdout, 10); putchar('\n');
-fputs("t = ", stdout); mp_writefile(t, stdout, 10); putchar('\n');
-#endif
-
mp_drop(q);
mp_drop(t);
mp_drop(s);
pfilt f;
pgen_jumpctx j;
rabin rb;
-
+
d = strongprime_setup(name, d, &f, nbits, r, n, event, ectx);
j.j = &f;
d = pgen(name, d, d, event, ectx, n, pgen_jump, &j,