diff libtomcrypt/src/pk/ecc/ltc_ecc_points.c @ 478:d4f32c3443ac dbclient-netcat-alike

propagate from branch 'au.asn.ucc.matt.dropbear' (head f21045c791002d81fc6b8dde6537ea481e513eb2) to branch 'au.asn.ucc.matt.dropbear.dbclient-netcat-alike' (head d1f69334581dc4c35f9ca16aa5355074c9dd315d)
author Matt Johnston <matt@ucc.asn.au>
date Sun, 14 Sep 2008 06:47:51 +0000
parents 0cbe8f6dbf9e
children f849a5ca2efc
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line diff
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/libtomcrypt/src/pk/ecc/ltc_ecc_points.c	Sun Sep 14 06:47:51 2008 +0000
@@ -0,0 +1,60 @@
+/* LibTomCrypt, modular cryptographic library -- Tom St Denis
+ *
+ * LibTomCrypt is a library that provides various cryptographic
+ * algorithms in a highly modular and flexible manner.
+ *
+ * The library is free for all purposes without any express
+ * guarantee it works.
+ *
+ * Tom St Denis, [email protected], http://libtomcrypt.com
+ */
+
+/* Implements ECC over Z/pZ for curve y^2 = x^3 - 3x + b
+ *
+ * All curves taken from NIST recommendation paper of July 1999
+ * Available at http://csrc.nist.gov/cryptval/dss.htm
+ */
+#include "tomcrypt.h"
+
+/**
+  @file ltc_ecc_points.c
+  ECC Crypto, Tom St Denis
+*/  
+
+#ifdef MECC
+
+/**
+   Allocate a new ECC point
+   @return A newly allocated point or NULL on error 
+*/
+ecc_point *ltc_ecc_new_point(void)
+{
+   ecc_point *p;
+   p = XCALLOC(1, sizeof(*p));
+   if (p == NULL) {
+      return NULL;
+   }
+   if (mp_init_multi(&p->x, &p->y, &p->z, NULL) != CRYPT_OK) {
+      XFREE(p);
+      return NULL;
+   }
+   return p;
+}
+
+/** Free an ECC point from memory
+  @param p   The point to free
+*/
+void ltc_ecc_del_point(ecc_point *p)
+{
+   /* prevents free'ing null arguments */
+   if (p != NULL) {
+      mp_clear_multi(p->x, p->y, p->z, NULL); /* note: p->z may be NULL but that's ok with this function anyways */
+      XFREE(p);
+   }
+}
+
+#endif
+/* $Source: /cvs/libtom/libtomcrypt/src/pk/ecc/ltc_ecc_points.c,v $ */
+/* $Revision: 1.5 $ */
+/* $Date: 2006/12/04 02:19:48 $ */
+