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authorMatt Johnston <matt@ucc.asn.au>2007-01-11 03:14:55 +0000
committerMatt Johnston <matt@ucc.asn.au>2007-01-11 03:14:55 +0000
commit68efaf4fb3d1cca475eee7ff15d6abb71a48cf88 (patch)
tree6dacbff2e9f5c60a1568382db55c72dd6d2ce925 /libtomcrypt/src/pk/ecc/ecc_sizes.c
parent0e9e709195eb6421f80d4c62fe66e43ae3ac2422 (diff)
parent4ebcb4da9b179c9bc735698414524ccda5932568 (diff)
downloaddropbear-68efaf4fb3d1cca475eee7ff15d6abb71a48cf88.tar.gz
propagate from branch 'au.asn.ucc.matt.ltm.dropbear' (head 2af95f00ebd5bb7a28b3817db1218442c935388e)
to branch 'au.asn.ucc.matt.dropbear' (head ecd779509ef23a8cdf64888904fc9b31d78aa933)
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
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+/* 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 $ */
+