1 files changed, 62 insertions, 0 deletions
diff --git a/stack/smp/p_256_multprecision.h b/stack/smp/p_256_multprecision.h
new file mode 100644
index 000000000..0d1a964c3
--- /dev/null
+++ b/stack/smp/p_256_multprecision.h
@@ -0,0 +1,62 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2006-2015 Broadcom Corporation
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+ /******************************************************************************
+  *
+  *  This file contains simple pairing algorithms
+  *
+  ******************************************************************************/
+#pragma once
+
+#include "bt_types.h"
+
+/* Type definitions */
+typedef unsigned long  DWORD;
+
+#define DWORD_BITS      32
+#define DWORD_BYTES     4
+#define DWORD_BITS_SHIFT 5
+
+#define KEY_LENGTH_DWORDS_P192 6
+#define KEY_LENGTH_DWORDS_P256 8
+/* Arithmetic Operations */
+
+int multiprecision_compare(DWORD *a, DWORD *b, uint32_t keyLength);
+int multiprecision_iszero(DWORD *a, uint32_t keyLength);
+void multiprecision_init(DWORD *c, uint32_t keyLength);
+void multiprecision_copy(DWORD *c, DWORD *a, uint32_t keyLength);
+UINT32 multiprecision_dword_bits (DWORD a);
+UINT32 multiprecision_most_signdwords(DWORD *a, uint32_t keyLength);
+UINT32 multiprecision_most_signbits(DWORD *a, uint32_t keyLength);
+void multiprecision_inv_mod(DWORD *aminus, DWORD *a, uint32_t keyLength);
+DWORD multiprecision_add(DWORD *c, DWORD *a, DWORD *b, uint32_t keyLength); // c=a+b
+void multiprecision_add_mod(DWORD *c, DWORD *a, DWORD *b, uint32_t keyLength);
+DWORD multiprecision_sub(DWORD *c, DWORD *a, DWORD *b, uint32_t keyLength); // c=a-b
+void multiprecision_sub_mod(DWORD *c, DWORD *a, DWORD *b, uint32_t keyLength);
+void multiprecision_rshift(DWORD * c, DWORD * a, uint32_t keyLength);  // c=a>>1, return carrier
+void multiprecision_lshift_mod(DWORD * c, DWORD * a, uint32_t keyLength); // c=a<<b, return carrier
+DWORD multiprecision_lshift(DWORD * c, DWORD * a, uint32_t keyLength);  // c=a<<b, return carrier
+void multiprecision_mult(DWORD *c, DWORD *a, DWORD *b, uint32_t keyLength); // c=a*b
+void multiprecision_mersenns_mult_mod(DWORD *c, DWORD *a, DWORD *b, uint32_t keyLength);
+void multiprecision_mersenns_squa_mod(DWORD *c, DWORD *a, uint32_t keyLength);
+DWORD multiprecision_lshift(DWORD * c, DWORD * a, uint32_t keyLength);
+void multiprecision_mult(DWORD *c, DWORD *a, DWORD *b, uint32_t keyLength);
+void multiprecision_fast_mod(DWORD *c, DWORD *a);
+void multiprecision_fast_mod_P256(DWORD *c, DWORD *a);
+
+