1 files changed, 61 insertions, 0 deletions
diff --git a/client/wolfssl/wolfcrypt/src/fp_mul_comba_3.i b/client/wolfssl/wolfcrypt/src/fp_mul_comba_3.i
new file mode 100644
index 0000000..0befff8
--- /dev/null
+++ b/client/wolfssl/wolfcrypt/src/fp_mul_comba_3.i
@@ -0,0 +1,61 @@
+/* fp_mul_comba_3.i
+ *
+ * Copyright (C) 2006-2020 wolfSSL Inc.
+ *
+ * This file is part of wolfSSL.
+ *
+ * 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 02110-1335, USA
+ */
+
+
+
+#ifdef TFM_MUL3
+int fp_mul_comba3(fp_int *A, fp_int *B, fp_int *C)
+{
+   fp_digit c0, c1, c2, at[6];
+
+   XMEMCPY(at, A->dp, 3 * sizeof(fp_digit));
+   XMEMCPY(at+3, B->dp, 3 * sizeof(fp_digit));
+   COMBA_START;
+
+   COMBA_CLEAR;
+   /* 0 */
+   MULADD(at[0], at[3]); 
+   COMBA_STORE(C->dp[0]);
+   /* 1 */
+   COMBA_FORWARD;
+   MULADD(at[0], at[4]);    MULADD(at[1], at[3]); 
+   COMBA_STORE(C->dp[1]);
+   /* 2 */
+   COMBA_FORWARD;
+   MULADD(at[0], at[5]);    MULADD(at[1], at[4]);    MULADD(at[2], at[3]); 
+   COMBA_STORE(C->dp[2]);
+   /* 3 */
+   COMBA_FORWARD;
+   MULADD(at[1], at[5]);    MULADD(at[2], at[4]); 
+   COMBA_STORE(C->dp[3]);
+   /* 4 */
+   COMBA_FORWARD;
+   MULADD(at[2], at[5]); 
+   COMBA_STORE(C->dp[4]);
+   COMBA_STORE2(C->dp[5]);
+   C->used = 6;
+   C->sign = A->sign ^ B->sign;
+   fp_clamp(C);
+   COMBA_FINI;
+
+   return FP_OKAY;
+}
+#endif