Diff: wolfcrypt/src/fp_mul_comba_7.i

Revision:

0:d92f9d21154c

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/wolfcrypt/src/fp_mul_comba_7.i	Fri Jun 26 00:39:20 2015 +0000
@@ -0,0 +1,91 @@
+/* fp_mul_comba_7.i
+ *
+ * Copyright (C) 2006-2015 wolfSSL Inc.
+ *
+ * This file is part of wolfSSL. (formerly known as CyaSSL)
+ *
+ * wolfSSL 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.
+ *
+ * wolfSSL 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 General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
+ */
+
+
+#ifdef TFM_MUL7
+void fp_mul_comba7(fp_int *A, fp_int *B, fp_int *C)
+{
+   fp_digit c0, c1, c2, at[14];
+
+   memcpy(at, A->dp, 7 * sizeof(fp_digit));
+   memcpy(at+7, B->dp, 7 * sizeof(fp_digit));
+   COMBA_START;
+
+   COMBA_CLEAR;
+   /* 0 */
+   MULADD(at[0], at[7]); 
+   COMBA_STORE(C->dp[0]);
+   /* 1 */
+   COMBA_FORWARD;
+   MULADD(at[0], at[8]);    MULADD(at[1], at[7]); 
+   COMBA_STORE(C->dp[1]);
+   /* 2 */
+   COMBA_FORWARD;
+   MULADD(at[0], at[9]);    MULADD(at[1], at[8]);    MULADD(at[2], at[7]); 
+   COMBA_STORE(C->dp[2]);
+   /* 3 */
+   COMBA_FORWARD;
+   MULADD(at[0], at[10]);    MULADD(at[1], at[9]);    MULADD(at[2], at[8]);    MULADD(at[3], at[7]); 
+   COMBA_STORE(C->dp[3]);
+   /* 4 */
+   COMBA_FORWARD;
+   MULADD(at[0], at[11]);    MULADD(at[1], at[10]);    MULADD(at[2], at[9]);    MULADD(at[3], at[8]);    MULADD(at[4], at[7]); 
+   COMBA_STORE(C->dp[4]);
+   /* 5 */
+   COMBA_FORWARD;
+   MULADD(at[0], at[12]);    MULADD(at[1], at[11]);    MULADD(at[2], at[10]);    MULADD(at[3], at[9]);    MULADD(at[4], at[8]);    MULADD(at[5], at[7]); 
+   COMBA_STORE(C->dp[5]);
+   /* 6 */
+   COMBA_FORWARD;
+   MULADD(at[0], at[13]);    MULADD(at[1], at[12]);    MULADD(at[2], at[11]);    MULADD(at[3], at[10]);    MULADD(at[4], at[9]);    MULADD(at[5], at[8]);    MULADD(at[6], at[7]); 
+   COMBA_STORE(C->dp[6]);
+   /* 7 */
+   COMBA_FORWARD;
+   MULADD(at[1], at[13]);    MULADD(at[2], at[12]);    MULADD(at[3], at[11]);    MULADD(at[4], at[10]);    MULADD(at[5], at[9]);    MULADD(at[6], at[8]); 
+   COMBA_STORE(C->dp[7]);
+   /* 8 */
+   COMBA_FORWARD;
+   MULADD(at[2], at[13]);    MULADD(at[3], at[12]);    MULADD(at[4], at[11]);    MULADD(at[5], at[10]);    MULADD(at[6], at[9]); 
+   COMBA_STORE(C->dp[8]);
+   /* 9 */
+   COMBA_FORWARD;
+   MULADD(at[3], at[13]);    MULADD(at[4], at[12]);    MULADD(at[5], at[11]);    MULADD(at[6], at[10]); 
+   COMBA_STORE(C->dp[9]);
+   /* 10 */
+   COMBA_FORWARD;
+   MULADD(at[4], at[13]);    MULADD(at[5], at[12]);    MULADD(at[6], at[11]); 
+   COMBA_STORE(C->dp[10]);
+   /* 11 */
+   COMBA_FORWARD;
+   MULADD(at[5], at[13]);    MULADD(at[6], at[12]); 
+   COMBA_STORE(C->dp[11]);
+   /* 12 */
+   COMBA_FORWARD;
+   MULADD(at[6], at[13]); 
+   COMBA_STORE(C->dp[12]);
+   COMBA_STORE2(C->dp[13]);
+   C->used = 14;
+   C->sign = A->sign ^ B->sign;
+   fp_clamp(C);
+   COMBA_FINI;
+}
+#endif
+