+++ /dev/null
-/* -*-c-*-
- *
- * $Id$
- *
- * Reading Diffie-Hellman parameters
- *
- * (c) 2004 Straylight/Edgeware
- */
-
-/*----- Licensing notice --------------------------------------------------*
- *
- * This file is part of Catacomb.
- *
- * Catacomb is free software; you can redistribute it and/or modify
- * 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.
- */
-
-/*----- Header files ------------------------------------------------------*/
-
-#include "dh.h"
-#include "ptab.h"
-#include "bintab.h"
-
-/*----- Main code ---------------------------------------------------------*/
-
-/* ---- @dh_infofromdata@ --- *
- *
- * Arguments: @dh_param *dp@ = parameters to fill in
- * @pdata *pd@ = packed data structure
- *
- * Returns: ---
- *
- * Use: Fills in a parameters structure from a packed data block.
- */
-
-void dh_infofromdata(dh_param *dp, pdata *pd)
- { dp->p = &pd->p; dp->q = &pd->q; dp->g = &pd->g; }
-
-/* --- @dh_parse@, @dhbin_parse@ --- *
- *
- * Arguments: @qd_parse *qd@ = parser context
- * @dh_param *dp@ = parameters to fill in
- *
- * Returns: Zero if OK, nonzero on error.
- *
- * Use: Parses a prime group string. This is either one of the
- * standard group strings, or a %$p$%, %$q$%, %$g$% triple
- * separated by commas.
- */
-
-static int parse(qd_parse *qd, gprime_param *dp)
-{
- mp *p = MP_NEW, *q = MP_NEW, *g = MP_NEW;
-
- if ((p = qd_getmp(qd)) == 0) goto fail;
- qd_delim(qd, ','); if ((q = qd_getmp(qd)) == 0) goto fail;
- qd_delim(qd, ','); if ((g = qd_getmp(qd)) == 0) goto fail;
- dp->p = p; dp->q = q; dp->g = g;
- return (0);
-fail:
- mp_drop(p); mp_drop(q); mp_drop(g);
- return (-1);
-}
-
-int dh_parse(qd_parse *qd, dh_param *dp)
-{
- const pentry *pe;
-
- for (pe = ptab; pe->name; pe++) {
- if (qd_enum(qd, pe->name) >= 0) {
- dh_infofromdata(dp, pe->data);
- goto found;
- }
- }
- if (parse(qd, dp))
- return (-1);
-found:
- return (0);
-}
-
-int dhbin_parse(qd_parse *qd, gbin_param *gb)
-{
- const binentry *be;
-
- for (be = bintab; be->name; be++) {
- if (qd_enum(qd, be->name) >= 0) {
- dh_infofromdata(gb, be->data);
- goto found;
- }
- }
- if (parse(qd, gb))
- return (-1);
-found:
- return (0);
-}
-
-/*----- Test rig ----------------------------------------------------------*/
-
-#ifdef TEST_RIG
-
-#include "fibrand.h"
-
-int main(int argc, char *argv[])
-{
- const pentry *pe;
- const binentry *be;
- const char *e;
- int ok = 1, aok = 1;
- grand *gr;
-
- gr = fibrand_create(0);
- fputs("checking standard prime groups:", stdout);
- fflush(stdout);
- for (pe = ptab; pe->name; pe++) {
- dh_param dp;
- group *g;
- dh_infofromdata(&dp, pe->data);
- g = group_prime(&dp);
- if (mp_bits(dp.p) > 2048 &&
- (!argv[1] || strcmp(argv[1], "keen") != 0)) {
- printf(" [%s skipped]", pe->name);
- fflush(stdout);
- continue;
- }
- e = G_CHECK(g, gr);
- G_DESTROYGROUP(g);
- dh_paramfree(&dp);
- if (e) {
- printf(" [%s failed: %s]", pe->name, e);
- ok = aok = 0;
- } else
- printf(" %s", pe->name);
- fflush(stdout);
- }
- fputs(ok ? " ok\n" : " failed\n", stdout);
- ok = 1;
- fputs("checking standard binary groups:", stdout);
- for (be = bintab; be->name; be++) {
- gbin_param gb;
- group *g;
- dh_infofromdata(&gb, be->data);
- g = group_binary(&gb);
- e = G_CHECK(g, gr);
- G_DESTROYGROUP(g);
- dh_paramfree(&gb);
- if (e) {
- printf(" [%s failed: %s]", be->name, e);
- ok = aok = 0;
- } else
- printf(" %s", be->name);
- fflush(stdout);
- }
- fputs(ok ? " ok\n" : " failed\n", stdout);
- gr->ops->destroy(gr);
- return (!aok);
-}
-
-#endif
-
-/*----- That's all, folks -------------------------------------------------*/