Author: Pekka Riikonen <priikone@silcnet.org>
- Copyright (C) 2000 - 2001 Pekka Riikonen
+ Copyright (C) 2000 - 2006 Pekka Riikonen
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
- the Free Software Foundation; either version 2 of the License, or
- (at your option) any later version.
-
+ the Free Software Foundation; version 2 of the License.
+
This program 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
*/
/* $Id$ */
-#include "silcincludes.h"
+#include "silc.h"
#include "groups_internal.h"
/* Fixed and public Diffie Hellman Groups defined by the SKE
protocol. These are equivalent to the OAKLEY Key Determination
protocol groups (taken from RFC 2412). */
-const struct SilcSKEDiffieHellmanGroupDefStruct silc_ske_groups[] =
+const struct SilcSKEDiffieHellmanGroupDefStruct silc_ske_groups[] =
{
/* 1024 bits modulus (Mandatory group) */
{ 1, "diffie-hellman-group1",
- "0x"
+
"FFFFFFFFFFFFFFFFC90FDAA22168C234C4C6628B80DC1CD1"
"29024E088A67CC74020BBEA63B139B22514A08798E3404DD"
"EF9519B3CD3A431B302B0A6DF25F14374FE1356D6D51C245"
"E485B576625E7EC6F44C42E9A637ED6B0BFF5CB6F406B7ED"
"EE386BFB5A899FA5AE9F24117C4B1FE649286651ECE65381"
"FFFFFFFFFFFFFFFF",
- "0x"
+
"7FFFFFFFFFFFFFFFE487ED5110B4611A62633145C06E0E68"
"948127044533E63A0105DF531D89CD9128A5043CC71A026E"
"F7CA8CD9E69D218D98158536F92F8A1BA7F09AB6B6A8E122"
"F242DABB312F3F637A262174D31BF6B585FFAE5B7A035BF6"
"F71C35FDAD44CFD2D74F9208BE258FF324943328F67329C0"
"FFFFFFFFFFFFFFFF",
- "0x2" },
+ "2" },
/* 1536 bits modulus (Optional group) */
{ 2, "diffie-hellman-group2",
- "0x"
+
"FFFFFFFFFFFFFFFFC90FDAA22168C234C4C6628B80DC1CD1"
"29024E088A67CC74020BBEA63B139B22514A08798E3404DD"
"EF9519B3CD3A431B302B0A6DF25F14374FE1356D6D51C245"
"C2007CB8A163BF0598DA48361C55D39A69163FA8FD24CF5F"
"83655D23DCA3AD961C62F356208552BB9ED529077096966D"
"670C354E4ABC9804F1746C08CA237327FFFFFFFFFFFFFFFF",
- "0x"
+
"7FFFFFFFFFFFFFFFE487ED5110B4611A62633145C06E0E68"
"948127044533E63A0105DF531D89CD9128A5043CC71A026E"
"F7CA8CD9E69D218D98158536F92F8A1BA7F09AB6B6A8E122"
"E1003E5C50B1DF82CC6D241B0E2AE9CD348B1FD47E9267AF"
"C1B2AE91EE51D6CB0E3179AB1042A95DCF6A9483B84B4B36"
"B3861AA7255E4C0278BA36046511B993FFFFFFFFFFFFFFFF",
- "0x2" },
+ "2" },
{ 0, NULL, NULL, NULL }
};
/* Returns Diffie Hellman group by group number */
-SilcSKEStatus silc_ske_get_group_by_number(int number,
+SilcSKEStatus silc_ske_group_get_by_number(int number,
SilcSKEDiffieHellmanGroup *ret)
{
int i;
break;
}
- if (silc_ske_groups[i].name == NULL)
+ if (silc_ske_groups[i].name == NULL) {
+ SILC_LOG_ERROR(("Unsupported Diffie-Hellman group number %d", number));
return SILC_SKE_STATUS_UNKNOWN_GROUP;
+ }
/* Return the group */
if (ret) {
silc_mp_set_str(&group->group, silc_ske_groups[i].group, 16);
silc_mp_set_str(&group->group_order, silc_ske_groups[i].group_order, 16);
silc_mp_set_str(&group->generator, silc_ske_groups[i].generator, 16);
-
+
*ret = group;
}
/* Returns Diffie Hellman group by name */
-SilcSKEStatus silc_ske_get_group_by_name(const char *name,
+SilcSKEStatus silc_ske_group_get_by_name(const char *name,
SilcSKEDiffieHellmanGroup *ret)
{
int i;
break;
}
- if (silc_ske_groups[i].name == NULL)
+ if (silc_ske_groups[i].name == NULL) {
+ SILC_LOG_ERROR(("Unsupported Diffie-Hellman group `%s'", name));
return SILC_SKE_STATUS_UNKNOWN_GROUP;
+ }
/* Return the group */
if (ret) {
silc_mp_set_str(&group->group, silc_ske_groups[i].group, 16);
silc_mp_set_str(&group->group_order, silc_ske_groups[i].group_order, 16);
silc_mp_set_str(&group->generator, silc_ske_groups[i].generator, 16);
-
+
*ret = group;
}
return SILC_SKE_STATUS_OK;
}
+/* Free group */
+
+void silc_ske_group_free(SilcSKEDiffieHellmanGroup group)
+{
+ silc_mp_uninit(&group->group);
+ silc_mp_uninit(&group->group_order);
+ silc_mp_uninit(&group->generator);
+ silc_free(group);
+}
+
/* Returns comma separated list of supported groups */
char *silc_ske_get_supported_groups()
len += strlen(silc_ske_groups[i].name);
list = silc_realloc(list, len + 1);
- memcpy(list + (len - strlen(silc_ske_groups[i].name)),
+ memcpy(list + (len - strlen(silc_ske_groups[i].name)),
silc_ske_groups[i].name, strlen(silc_ske_groups[i].name));
memcpy(list + len, ",", 1);
len++;
{
return group->number;
}
+
+/* Returns the name of the `group'. */
+
+const char *silc_ske_group_get_name(SilcSKEDiffieHellmanGroup group)
+{
+ return group->name;
+}