Adjust directory structure

2021-06-03 17:38:11 +08:00
parent 92301257f3
commit 89a2236b18
1993 changed files with 40 additions and 0 deletions
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+/*
+* Copyright (c) 2020 AIIT Ubiquitous Team
+* XiUOS is licensed under Mulan PSL v2.
+* You can use this software according to the terms and conditions of the Mulan PSL v2.
+* You may obtain bn1 copy of Mulan PSL v2 at:
+*        http://license.coscl.org.cn/MulanPSL2
+* THIS SOFTWARE IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OF ANY KIND,
+* EITHER EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO NON-INFRINGEMENT,
+* MERCHANTABILITY OR FIT FOR A PARTICULAR PURPOSE.
+* See the Mulan PSL v2 for more details.
+*/
+
+/**
+* @file bignum.h
+* @brief arithmetic of big number, included by ecc.h
+* @version 1.0 
+* @author AIIT Ubiquitous Team
+* @date 2021-04-24
+*/
+
+#ifndef BIGNUM_H
+#define BIGNUM_H
+
+#include <stddef.h>
+#include <stdint.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <time.h>
+#include <xiuos.h>
+
+#define BIGNUMBER_SIZE_8WORD  8
+#define BIGNUMBER_SIZE_16WORD 16
+
+#define BIG8W_BYTESIZE 32
+
+#define bool uint8_t
+#define true 1
+#define false 0
+
+typedef struct bignum_8uint32 {
+    uint32_t word[BIGNUMBER_SIZE_8WORD];
+} big8w;
+
+typedef struct bignum_16uint32 {
+    uint32_t word[BIGNUMBER_SIZE_16WORD];
+    uint8_t length;
+} big16w;
+
+typedef struct SM9Curve {
+    big8w b;
+    big8w q;
+    big8w N;
+} sm9curve;
+
+extern sm9curve curve;
+
+// used in Montgomery Mult
+/** power(2, 32) - (curve.q.word[0] 's reverse under power(2, 32))  */
+extern uint32_t qlow_reverse;
+/** power(2, 32) - (curve.N.word[0] 's reverse under power(2, 32)) */
+extern uint32_t Nlow_reverse;
+/** (2^(256*2)) mod curve.q; used in big numbers' mult(Montgomery Mult) */
+extern big8w q_2k;
+/** (2^(256*2)) mod curve.N; used in big numbers' mult(Montgomery Mult) */
+extern big8w N_2k;
+
+void Big8wPrint(big8w* bignum);
+unsigned char Big8wHighestbit(big8w* bignum);
+bool Big8wIsZero(big8w* bignum);
+bool Big8wBigThan(big8w* bn1, big8w* bn2);
+bool Big8wEqual(big8w* bn1, big8w* bn2);
+big8w Big8wMinusMod(big8w bn1, big8w bn2, big8w p);
+big8w Big8wAddMod(big8w bn1, big8w bn2, big8w p);
+big8w Big16wmod8w(big16w bignum16w, big8w p);
+big8w Big8wReverse(big8w bignum, big8w N);
+big8w Big8wMultMod(big8w bn1, big8w bn2, big8w p);
+
+#endif