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authorMatt Johnston <matt@ucc.asn.au>2007-02-03 08:20:30 +0000
committerMatt Johnston <matt@ucc.asn.au>2007-02-03 08:20:30 +0000
commitc5fd7dd5548f28e32d846e39d17e5c4de4e769af (patch)
tree81b522e272facfb27ff614936b4988bf6569ef2d /libtomcrypt/src/pk/ecc/ecc_sizes.c
parent5092e30605dfc5c45990d91cf606990e5c768255 (diff)
parent4a5208512ba02f735acbf7e948ed02353583581e (diff)
merge of '1250b8af44b62d8f4fe0f8d9fc7e7a1cc34e7e1c'
and '7f8670ac3bb975f40967f3979d09d2199b7e90c8' --HG-- extra : convert_revision : 6b61c50f4cf888bea302ac8fcf5dbb573b443251
Diffstat (limited to 'libtomcrypt/src/pk/ecc/ecc_sizes.c')
-rw-r--r--libtomcrypt/src/pk/ecc/ecc_sizes.c48
1 files changed, 48 insertions, 0 deletions
diff --git a/libtomcrypt/src/pk/ecc/ecc_sizes.c b/libtomcrypt/src/pk/ecc/ecc_sizes.c
new file mode 100644
index 0000000..f4b2d82
--- /dev/null
+++ b/libtomcrypt/src/pk/ecc/ecc_sizes.c
@@ -0,0 +1,48 @@
+/* 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, tomstdenis@gmail.com, 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 ecc_sizes.c
+ ECC Crypto, Tom St Denis
+*/
+
+#ifdef MECC
+
+void ecc_sizes(int *low, int *high)
+{
+ int i;
+ LTC_ARGCHKVD(low != NULL);
+ LTC_ARGCHKVD(high != NULL);
+
+ *low = INT_MAX;
+ *high = 0;
+ for (i = 0; ltc_ecc_sets[i].size != 0; i++) {
+ if (ltc_ecc_sets[i].size < *low) {
+ *low = ltc_ecc_sets[i].size;
+ }
+ if (ltc_ecc_sets[i].size > *high) {
+ *high = ltc_ecc_sets[i].size;
+ }
+ }
+}
+
+#endif
+/* $Source: /cvs/libtom/libtomcrypt/src/pk/ecc/ecc_sizes.c,v $ */
+/* $Revision: 1.4 $ */
+/* $Date: 2006/06/09 01:38:14 $ */
+