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Diffstat (limited to 'FreeRTOS-Plus/Source/WolfSSL/wolfcrypt/src/fp_mul_comba_small_set.i')
-rw-r--r--FreeRTOS-Plus/Source/WolfSSL/wolfcrypt/src/fp_mul_comba_small_set.i92
1 files changed, 55 insertions, 37 deletions
diff --git a/FreeRTOS-Plus/Source/WolfSSL/wolfcrypt/src/fp_mul_comba_small_set.i b/FreeRTOS-Plus/Source/WolfSSL/wolfcrypt/src/fp_mul_comba_small_set.i
index deea5932c..62ab909cf 100644
--- a/FreeRTOS-Plus/Source/WolfSSL/wolfcrypt/src/fp_mul_comba_small_set.i
+++ b/FreeRTOS-Plus/Source/WolfSSL/wolfcrypt/src/fp_mul_comba_small_set.i
@@ -1,8 +1,8 @@
/* fp_mul_comba_small_set.i
*
- * Copyright (C) 2006-2015 wolfSSL Inc.
+ * Copyright (C) 2006-2020 wolfSSL Inc.
*
- * This file is part of wolfSSL. (formerly known as CyaSSL)
+ * 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
@@ -16,19 +16,32 @@
*
* 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
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1335, USA
*/
+
#if defined(TFM_SMALL_SET)
-void fp_mul_comba_small(fp_int *A, fp_int *B, fp_int *C)
+int fp_mul_comba_small(fp_int *A, fp_int *B, fp_int *C)
{
- fp_digit c0, c1, c2, at[32];
+ fp_digit c0, c1, c2;
+#ifndef WOLFSSL_SMALL_STACK
+ fp_digit at[32];
+#else
+ fp_digit *at;
+#endif
+
+#ifdef WOLFSSL_SMALL_STACK
+ at = (fp_digit*)XMALLOC(sizeof(fp_digit) * 32, NULL, DYNAMIC_TYPE_TMP_BUFFER);
+ if (at == NULL)
+ return FP_MEM;
+#endif
+
switch (MAX(A->used, B->used)) {
case 1:
- memcpy(at, A->dp, 1 * sizeof(fp_digit));
- memcpy(at+1, B->dp, 1 * sizeof(fp_digit));
+ XMEMCPY(at, A->dp, 1 * sizeof(fp_digit));
+ XMEMCPY(at+1, B->dp, 1 * sizeof(fp_digit));
COMBA_START;
COMBA_CLEAR;
@@ -43,8 +56,8 @@ void fp_mul_comba_small(fp_int *A, fp_int *B, fp_int *C)
break;
case 2:
- memcpy(at, A->dp, 2 * sizeof(fp_digit));
- memcpy(at+2, B->dp, 2 * sizeof(fp_digit));
+ XMEMCPY(at, A->dp, 2 * sizeof(fp_digit));
+ XMEMCPY(at+2, B->dp, 2 * sizeof(fp_digit));
COMBA_START;
COMBA_CLEAR;
@@ -67,8 +80,8 @@ void fp_mul_comba_small(fp_int *A, fp_int *B, fp_int *C)
break;
case 3:
- memcpy(at, A->dp, 3 * sizeof(fp_digit));
- memcpy(at+3, B->dp, 3 * sizeof(fp_digit));
+ XMEMCPY(at, A->dp, 3 * sizeof(fp_digit));
+ XMEMCPY(at+3, B->dp, 3 * sizeof(fp_digit));
COMBA_START;
COMBA_CLEAR;
@@ -99,8 +112,8 @@ void fp_mul_comba_small(fp_int *A, fp_int *B, fp_int *C)
break;
case 4:
- memcpy(at, A->dp, 4 * sizeof(fp_digit));
- memcpy(at+4, B->dp, 4 * sizeof(fp_digit));
+ XMEMCPY(at, A->dp, 4 * sizeof(fp_digit));
+ XMEMCPY(at+4, B->dp, 4 * sizeof(fp_digit));
COMBA_START;
COMBA_CLEAR;
@@ -139,8 +152,8 @@ void fp_mul_comba_small(fp_int *A, fp_int *B, fp_int *C)
break;
case 5:
- memcpy(at, A->dp, 5 * sizeof(fp_digit));
- memcpy(at+5, B->dp, 5 * sizeof(fp_digit));
+ XMEMCPY(at, A->dp, 5 * sizeof(fp_digit));
+ XMEMCPY(at+5, B->dp, 5 * sizeof(fp_digit));
COMBA_START;
COMBA_CLEAR;
@@ -187,8 +200,8 @@ void fp_mul_comba_small(fp_int *A, fp_int *B, fp_int *C)
break;
case 6:
- memcpy(at, A->dp, 6 * sizeof(fp_digit));
- memcpy(at+6, B->dp, 6 * sizeof(fp_digit));
+ XMEMCPY(at, A->dp, 6 * sizeof(fp_digit));
+ XMEMCPY(at+6, B->dp, 6 * sizeof(fp_digit));
COMBA_START;
COMBA_CLEAR;
@@ -243,8 +256,8 @@ void fp_mul_comba_small(fp_int *A, fp_int *B, fp_int *C)
break;
case 7:
- memcpy(at, A->dp, 7 * sizeof(fp_digit));
- memcpy(at+7, B->dp, 7 * sizeof(fp_digit));
+ XMEMCPY(at, A->dp, 7 * sizeof(fp_digit));
+ XMEMCPY(at+7, B->dp, 7 * sizeof(fp_digit));
COMBA_START;
COMBA_CLEAR;
@@ -307,8 +320,8 @@ void fp_mul_comba_small(fp_int *A, fp_int *B, fp_int *C)
break;
case 8:
- memcpy(at, A->dp, 8 * sizeof(fp_digit));
- memcpy(at+8, B->dp, 8 * sizeof(fp_digit));
+ XMEMCPY(at, A->dp, 8 * sizeof(fp_digit));
+ XMEMCPY(at+8, B->dp, 8 * sizeof(fp_digit));
COMBA_START;
COMBA_CLEAR;
@@ -379,8 +392,8 @@ void fp_mul_comba_small(fp_int *A, fp_int *B, fp_int *C)
break;
case 9:
- memcpy(at, A->dp, 9 * sizeof(fp_digit));
- memcpy(at+9, B->dp, 9 * sizeof(fp_digit));
+ XMEMCPY(at, A->dp, 9 * sizeof(fp_digit));
+ XMEMCPY(at+9, B->dp, 9 * sizeof(fp_digit));
COMBA_START;
COMBA_CLEAR;
@@ -459,8 +472,8 @@ void fp_mul_comba_small(fp_int *A, fp_int *B, fp_int *C)
break;
case 10:
- memcpy(at, A->dp, 10 * sizeof(fp_digit));
- memcpy(at+10, B->dp, 10 * sizeof(fp_digit));
+ XMEMCPY(at, A->dp, 10 * sizeof(fp_digit));
+ XMEMCPY(at+10, B->dp, 10 * sizeof(fp_digit));
COMBA_START;
COMBA_CLEAR;
@@ -547,8 +560,8 @@ void fp_mul_comba_small(fp_int *A, fp_int *B, fp_int *C)
break;
case 11:
- memcpy(at, A->dp, 11 * sizeof(fp_digit));
- memcpy(at+11, B->dp, 11 * sizeof(fp_digit));
+ XMEMCPY(at, A->dp, 11 * sizeof(fp_digit));
+ XMEMCPY(at+11, B->dp, 11 * sizeof(fp_digit));
COMBA_START;
COMBA_CLEAR;
@@ -643,8 +656,8 @@ void fp_mul_comba_small(fp_int *A, fp_int *B, fp_int *C)
break;
case 12:
- memcpy(at, A->dp, 12 * sizeof(fp_digit));
- memcpy(at+12, B->dp, 12 * sizeof(fp_digit));
+ XMEMCPY(at, A->dp, 12 * sizeof(fp_digit));
+ XMEMCPY(at+12, B->dp, 12 * sizeof(fp_digit));
COMBA_START;
COMBA_CLEAR;
@@ -747,8 +760,8 @@ void fp_mul_comba_small(fp_int *A, fp_int *B, fp_int *C)
break;
case 13:
- memcpy(at, A->dp, 13 * sizeof(fp_digit));
- memcpy(at+13, B->dp, 13 * sizeof(fp_digit));
+ XMEMCPY(at, A->dp, 13 * sizeof(fp_digit));
+ XMEMCPY(at+13, B->dp, 13 * sizeof(fp_digit));
COMBA_START;
COMBA_CLEAR;
@@ -859,8 +872,8 @@ void fp_mul_comba_small(fp_int *A, fp_int *B, fp_int *C)
break;
case 14:
- memcpy(at, A->dp, 14 * sizeof(fp_digit));
- memcpy(at+14, B->dp, 14 * sizeof(fp_digit));
+ XMEMCPY(at, A->dp, 14 * sizeof(fp_digit));
+ XMEMCPY(at+14, B->dp, 14 * sizeof(fp_digit));
COMBA_START;
COMBA_CLEAR;
@@ -979,8 +992,8 @@ void fp_mul_comba_small(fp_int *A, fp_int *B, fp_int *C)
break;
case 15:
- memcpy(at, A->dp, 15 * sizeof(fp_digit));
- memcpy(at+15, B->dp, 15 * sizeof(fp_digit));
+ XMEMCPY(at, A->dp, 15 * sizeof(fp_digit));
+ XMEMCPY(at+15, B->dp, 15 * sizeof(fp_digit));
COMBA_START;
COMBA_CLEAR;
@@ -1107,8 +1120,8 @@ void fp_mul_comba_small(fp_int *A, fp_int *B, fp_int *C)
break;
case 16:
- memcpy(at, A->dp, 16 * sizeof(fp_digit));
- memcpy(at+16, B->dp, 16 * sizeof(fp_digit));
+ XMEMCPY(at, A->dp, 16 * sizeof(fp_digit));
+ XMEMCPY(at+16, B->dp, 16 * sizeof(fp_digit));
COMBA_START;
COMBA_CLEAR;
@@ -1245,6 +1258,11 @@ void fp_mul_comba_small(fp_int *A, fp_int *B, fp_int *C)
default:
break;
}
+
+#ifdef WOLFSSL_SMALL_STACK
+ XFREE(at, NULL, DYNAMIC_TYPE_TMP_BUFFER);
+#endif
+ return FP_OKAY;
}
#endif
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