-/* crypto/bn/bn_nist.p */
+/* crypto/bn/bn_nist.c */
+/*
+ * Written by Nils Larsch for the OpenSSL project
+ */
/* ====================================================================
- * Copyright (c) 1998-2002 The OpenSSL Project. All rights reserved.
+ * Copyright (c) 1998-2005 The OpenSSL Project. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
#define BN_NIST_521_TOP (521+BN_BITS2-1)/BN_BITS2
#if BN_BITS2 == 64
-const static BN_ULONG _nist_p_192[] = {0xFFFFFFFFFFFFFFFF,0xFFFFFFFFFFFFFFFE,
- 0xFFFFFFFFFFFFFFFF};
-const static BN_ULONG _nist_p_224[] = {0x0000000000000001,0xFFFFFFFF00000000,
- 0xFFFFFFFFFFFFFFFF,0x00000000FFFFFFFF};
-const static BN_ULONG _nist_p_256[] = {0xFFFFFFFFFFFFFFFF,0x00000000FFFFFFFF,
- 0x0000000000000000,0xFFFFFFFF00000001};
-const static BN_ULONG _nist_p_384[] = {0x00000000FFFFFFFF,0xFFFFFFFF00000000,
- 0xFFFFFFFFFFFFFFFE,0xFFFFFFFFFFFFFFFF,0xFFFFFFFFFFFFFFFF,
- 0xFFFFFFFFFFFFFFFF};
-const static BN_ULONG _nist_p_521[] = {0xFFFFFFFFFFFFFFFF,0xFFFFFFFFFFFFFFFF,
- 0xFFFFFFFFFFFFFFFF,0xFFFFFFFFFFFFFFFF,0xFFFFFFFFFFFFFFFF,
- 0xFFFFFFFFFFFFFFFF,0xFFFFFFFFFFFFFFFF,0xFFFFFFFFFFFFFFFF,
- 0x00000000000001FF};
+static const BN_ULONG _nist_p_192[] =
+ {0xFFFFFFFFFFFFFFFFULL,0xFFFFFFFFFFFFFFFEULL,
+ 0xFFFFFFFFFFFFFFFFULL};
+static const BN_ULONG _nist_p_224[] =
+ {0x0000000000000001ULL,0xFFFFFFFF00000000ULL,
+ 0xFFFFFFFFFFFFFFFFULL,0x00000000FFFFFFFFULL};
+static const BN_ULONG _nist_p_256[] =
+ {0xFFFFFFFFFFFFFFFFULL,0x00000000FFFFFFFFULL,
+ 0x0000000000000000ULL,0xFFFFFFFF00000001ULL};
+static const BN_ULONG _nist_p_384[] =
+ {0x00000000FFFFFFFFULL,0xFFFFFFFF00000000ULL,
+ 0xFFFFFFFFFFFFFFFEULL,0xFFFFFFFFFFFFFFFFULL,
+ 0xFFFFFFFFFFFFFFFFULL,0xFFFFFFFFFFFFFFFFULL};
+static const BN_ULONG _nist_p_521[] =
+ {0xFFFFFFFFFFFFFFFFULL,0xFFFFFFFFFFFFFFFFULL,
+ 0xFFFFFFFFFFFFFFFFULL,0xFFFFFFFFFFFFFFFFULL,
+ 0xFFFFFFFFFFFFFFFFULL,0xFFFFFFFFFFFFFFFFULL,
+ 0xFFFFFFFFFFFFFFFFULL,0xFFFFFFFFFFFFFFFFULL,
+ 0x00000000000001FFULL};
#elif BN_BITS2 == 32
-const static BN_ULONG _nist_p_192[] = {0xFFFFFFFF,0xFFFFFFFF,0xFFFFFFFE,
+static const BN_ULONG _nist_p_192[] = {0xFFFFFFFF,0xFFFFFFFF,0xFFFFFFFE,
0xFFFFFFFF,0xFFFFFFFF,0xFFFFFFFF};
-const static BN_ULONG _nist_p_224[] = {0x00000001,0x00000000,0x00000000,
+static const BN_ULONG _nist_p_224[] = {0x00000001,0x00000000,0x00000000,
0xFFFFFFFF,0xFFFFFFFF,0xFFFFFFFF,0xFFFFFFFF};
-const static BN_ULONG _nist_p_256[] = {0xFFFFFFFF,0xFFFFFFFF,0xFFFFFFFF,
+static const BN_ULONG _nist_p_256[] = {0xFFFFFFFF,0xFFFFFFFF,0xFFFFFFFF,
0x00000000,0x00000000,0x00000000,0x00000001,0xFFFFFFFF};
-const static BN_ULONG _nist_p_384[] = {0xFFFFFFFF,0x00000000,0x00000000,
+static const BN_ULONG _nist_p_384[] = {0xFFFFFFFF,0x00000000,0x00000000,
0xFFFFFFFF,0xFFFFFFFE,0xFFFFFFFF,0xFFFFFFFF,0xFFFFFFFF,0xFFFFFFFF,
0xFFFFFFFF,0xFFFFFFFF,0xFFFFFFFF};
-const static BN_ULONG _nist_p_521[] = {0xFFFFFFFF,0xFFFFFFFF,0xFFFFFFFF,
+static const BN_ULONG _nist_p_521[] = {0xFFFFFFFF,0xFFFFFFFF,0xFFFFFFFF,
0xFFFFFFFF,0xFFFFFFFF,0xFFFFFFFF,0xFFFFFFFF,0xFFFFFFFF,0xFFFFFFFF,
0xFFFFFFFF,0xFFFFFFFF,0xFFFFFFFF,0xFFFFFFFF,0xFFFFFFFF,0xFFFFFFFF,
0xFFFFFFFF,0x000001FF};
#elif BN_BITS2 == 16
-const static BN_ULONG _nist_p_192[] = {0xFFFF,0xFFFF,0xFFFF,0xFFFF,0xFFFE,
+static const BN_ULONG _nist_p_192[] = {0xFFFF,0xFFFF,0xFFFF,0xFFFF,0xFFFE,
0xFFFF,0xFFFF,0xFFFF,0xFFFF,0xFFFF,0xFFFF,0xFFFF};
-const static BN_ULONG _nist_p_224[] = {0x0001,0x0000,0x0000,0x0000,0x0000,
+static const BN_ULONG _nist_p_224[] = {0x0001,0x0000,0x0000,0x0000,0x0000,
0x0000,0xFFFF,0xFFFF,0xFFFF,0xFFFF,0xFFFF,0xFFFF,0xFFFF,0xFFFF};
-const static BN_ULONG _nist_p_256[] = {0xFFFF,0xFFFF,0xFFFF,0xFFFF,0xFFFF,
+static const BN_ULONG _nist_p_256[] = {0xFFFF,0xFFFF,0xFFFF,0xFFFF,0xFFFF,
0xFFFF,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0001,0x0000,0xFFFF,
0xFFFF};
-const static BN_ULONG _nist_p_384[] = {0xFFFF,0xFFFF,0x0000,0x0000,0x0000,
+static const BN_ULONG _nist_p_384[] = {0xFFFF,0xFFFF,0x0000,0x0000,0x0000,
0x0000,0xFFFF,0xFFFF,0xFFFE,0xFFFF,0xFFFF,0xFFFF,0xFFFF,0xFFFF,0xFFFF,
0xFFFF,0xFFFF,0xFFFF,0xFFFF,0xFFFF,0xFFFF,0xFFFF,0xFFFF,0xFFFF};
-const static BN_ULONG _nist_p_521[] = {0xFFFF,0xFFFF,0xFFFF,0xFFFF,0xFFFF,
+static const BN_ULONG _nist_p_521[] = {0xFFFF,0xFFFF,0xFFFF,0xFFFF,0xFFFF,
0xFFFF,0xFFFF,0xFFFF,0xFFFF,0xFFFF,0xFFFF,0xFFFF,0xFFFF,0xFFFF,0xFFFF,
0xFFFF,0xFFFF,0xFFFF,0xFFFF,0xFFFF,0xFFFF,0xFFFF,0xFFFF,0xFFFF,0xFFFF,
0xFFFF,0xFFFF,0xFFFF,0xFFFF,0xFFFF,0xFFFF,0xFFFF,0x01FF};
#elif BN_BITS2 == 8
-const static BN_ULONG _nist_p_192[] = {0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,
+static const BN_ULONG _nist_p_192[] = {0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,
0xFE,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,
0xFF,0xFF};
-const static BN_ULONG _nist_p_224[] = {0x01,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
+static const BN_ULONG _nist_p_224[] = {0x01,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,
0xFF,0xFF,0xFF,0xFF,0xFF,0xFF};
-const static BN_ULONG _nist_p_256[] = {0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,
+static const BN_ULONG _nist_p_256[] = {0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,
0xFF,0xFF,0xFF,0xFF,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x01,0x00,0x00,0x00,0xFF,0xFF,0xFF,0xFF};
-const static BN_ULONG _nist_p_384[] = {0xFF,0xFF,0xFF,0xFF,0x00,0x00,0x00,0x00,
+static const BN_ULONG _nist_p_384[] = {0xFF,0xFF,0xFF,0xFF,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0xFF,0xFF,0xFF,0xFF,0xFE,0xFF,0xFF,0xFF,0xFF,0xFF,
0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,
0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF};
-const static BN_ULONG _nist_p_521[] = {0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,
+static const BN_ULONG _nist_p_521[] = {0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,
0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,
0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,
0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,
const BIGNUM *BN_get0_nist_prime_192(void)
{
- static BIGNUM const_nist_192={(BN_ULONG *)_nist_p_192,BN_NIST_192_TOP,
- BN_NIST_192_TOP, 0, BN_FLG_STATIC_DATA};
+ static BIGNUM const_nist_192 = { (BN_ULONG *)_nist_p_192,
+ BN_NIST_192_TOP, BN_NIST_192_TOP, 0, BN_FLG_STATIC_DATA };
return &const_nist_192;
}
const BIGNUM *BN_get0_nist_prime_224(void)
{
- static BIGNUM const_nist_224={(BN_ULONG *)_nist_p_224,BN_NIST_224_TOP,
- BN_NIST_224_TOP, 0, BN_FLG_STATIC_DATA};
+ static BIGNUM const_nist_224 = { (BN_ULONG *)_nist_p_224,
+ BN_NIST_224_TOP, BN_NIST_224_TOP, 0, BN_FLG_STATIC_DATA };
return &const_nist_224;
}
const BIGNUM *BN_get0_nist_prime_256(void)
{
- static BIGNUM const_nist_256={(BN_ULONG *)_nist_p_256,BN_NIST_256_TOP,
- BN_NIST_256_TOP, 0, BN_FLG_STATIC_DATA};
+ static BIGNUM const_nist_256 = { (BN_ULONG *)_nist_p_256,
+ BN_NIST_256_TOP, BN_NIST_256_TOP, 0, BN_FLG_STATIC_DATA };
return &const_nist_256;
}
const BIGNUM *BN_get0_nist_prime_384(void)
{
- static BIGNUM const_nist_384={(BN_ULONG *)_nist_p_384,BN_NIST_384_TOP,
- BN_NIST_384_TOP, 0, BN_FLG_STATIC_DATA};
+ static BIGNUM const_nist_384 = { (BN_ULONG *)_nist_p_384,
+ BN_NIST_384_TOP, BN_NIST_384_TOP, 0, BN_FLG_STATIC_DATA };
return &const_nist_384;
}
const BIGNUM *BN_get0_nist_prime_521(void)
{
- static BIGNUM const_nist_521={(BN_ULONG *)_nist_p_521,BN_NIST_521_TOP,
- BN_NIST_521_TOP, 0, BN_FLG_STATIC_DATA};
+ static BIGNUM const_nist_521 = { (BN_ULONG *)_nist_p_521,
+ BN_NIST_521_TOP, BN_NIST_521_TOP, 0, BN_FLG_STATIC_DATA };
return &const_nist_521;
}
static void _init_384_data(void);
#define BN_NIST_ADD_ONE(a) while (!(++(*(a)))) ++(a);
-#define __buf_0 (BN_ULONG)0
-#define __buf_0_1 (BN_ULONG)0
-#define __buf_0_2 (BN_ULONG)0
+
+static void nist_cp_bn_0(BN_ULONG *buf, BN_ULONG *a, int top, int max)
+ {
+ int i;
+ BN_ULONG *_tmp1 = (buf), *_tmp2 = (a);
+ for (i = (top); i != 0; i--)
+ *_tmp1++ = *_tmp2++;
+ for (i = (max) - (top); i != 0; i--)
+ *_tmp1++ = (BN_ULONG) 0;
+ }
+
+static void nist_cp_bn(BN_ULONG *buf, BN_ULONG *a, int top)
+ {
+ int i;
+ BN_ULONG *_tmp1 = (buf), *_tmp2 = (a);
+ for (i = (top); i != 0; i--)
+ *_tmp1++ = *_tmp2++;
+ }
+
#if BN_BITS2 == 64
-#define BN_64_BIT_BUF(n) BN_ULONG __buf_##n = (BN_ULONG)0;
-#define BN_CP_64_TO_BUF(n) __buf_##n = (a)[(n)];
-#define BN_CP_64_FROM_BUF(a,n) *(a)++ = __buf_##n;
-#define BN_CASE_64_BIT(n,a) case (n): __buf_##n = (a)[(n)];
-#if UINT_MAX == 4294967295UL
-#define nist32 unsigned int
-#define BN_32_BIT_BUF(n) nist32 __buf_##n = (nist32)0;
-#define BN_CP_32_TO_BUF(n) __buf_##n = ((nist32 *)(a))[(n)];
-#define BN_CP_32_FROM_BUF(a,n) *((nist32)(a))++ = __buf_##n;
-#define BN_CASE_32_BIT(n,a) case (n): __buf_##n = ((nist32)(a))[(n)];
-#elif ULONG_MAX == 4294967295UL
-#define nist32 unsigned long
-#define BN_32_BIT_BUF(n) nist32 __buf_##n = (nist32)0;
-#define BN_CP_32_TO_BUF(n) __buf_##n = ((nist32 *)(a))[(n)];
-#define BN_CP_32_FROM_BUF(a,n) *((nist32)(a))++ = __buf_##n;
-#define BN_CASE_32_BIT(n,a) case (n): __buf_##n = ((nist32)(a))[(n)];
+#define bn_cp_64(to, n, from, m) (to)[n] = (from)[m];
+#define bn_64_set_0(to, n) (to)[n] = (BN_ULONG)0;
+/* TBD */
+#define bn_cp_32(to, n, from, m) (to)[n] = (from)[m];
+#define bn_32_set_0(to, n) (to)[n] = (BN_ULONG)0;
#else
-#define NO_32_BIT_TYPE
-#endif
-#elif BN_BITS2 == 32
-#define BN_64_BIT_BUF(n) BN_ULONG __buf_##n##_1 = (BN_ULONG)0;\
- BN_ULONG __buf_##n##_2 = (BN_ULONG)0;
-#define BN_CP_64_TO_BUF(n) __buf_##n##_2 = (a)[2*(n)+1];\
- __buf_##n##_1 = (a)[2*(n)];
-#define BN_CP_64_FROM_BUF(a,n) *(a)++ = __buf_##n##_1;\
- *(a)++ = __buf_##n##_2;
-#define BN_CASE_64_BIT(n,a) case 2*(n)+1: __buf_##n##_2 = (a)[2*(n)+1];\
- case 2*(n): __buf_##n##_1 = (a)[2*(n)];
-
-#define BN_32_BIT_BUF(n) BN_ULONG __buf_##n = (BN_ULONG)0;
-#define BN_CP_32_TO_BUF(n) __buf_##n = (a)[(n)];
-#define BN_CP_32_FROM_BUF(a,n) *(a)++ = __buf_##n;
-#define BN_CASE_32_BIT(n,a) case (n): __buf_##n = (a)[(n)];
+#define bn_cp_64(to, n, from, m) \
+ { \
+ bn_cp_32(to, (n)*2, from, (m)*2); \
+ bn_cp_32(to, (n)*2+1, from, (m)*2+1); \
+ }
+#define bn_64_set_0(to, n) \
+ { \
+ bn_32_set_0(to, (n)*2); \
+ bn_32_set_0(to, (n)*2+1); \
+ }
+#if BN_BITS2 == 32
+#define bn_cp_32(to, n, from, m) (to)[n] = (from)[m];
+#define bn_32_set_0(to, n) (to)[n] = (BN_ULONG)0;
#elif BN_BITS2 == 16
-#define __buf_0_3 (BN_ULONG)0
-#define __buf_0_4 (BN_ULONG)0
-#define BN_64_BIT_BUF(n) BN_ULONG __buf_##n##_1 = (BN_ULONG)0;\
- BN_ULONG __buf_##n##_2 = (BN_ULONG)0;\
- BN_ULONG __buf_##n##_3 = (BN_ULONG)0;\
- BN_ULONG __buf_##n##_4 = (BN_ULONG)0;
-#define BN_CP_64_TO_BUF(n) __buf_##n##_4 = (a)[4*(n)+3];\
- __buf_##n##_3 = (a)[4*(n)+2];\
- __buf_##n##_2 = (a)[4*(n)+1];\
- __buf_##n##_1 = (a)[4*(n)];
-#define BN_CP_64_FROM_BUF(a,n) *(a)++ = __buf_##n##_1;\
- *(a)++ = __buf_##n##_2;\
- *(a)++ = __buf_##n##_3;\
- *(a)++ = __buf_##n##_4;
-#define BN_CASE_64_BIT(n,a) case 4*(n)+3: __buf_##n##_4 = (a)[4*(n)+3];\
- case 4*(n)+2: __buf_##n##_3 = (a)[4*(n)+2];\
- case 4*(n)+1: __buf_##n##_2 = (a)[4*(n)+1];\
- case 4*(n): __buf_##n##_1 = (a)[4*(n)];
-#define BN_32_BIT_BUF(n) BN_ULONG __buf_##n##_1 = (BN_ULONG)0;\
- BN_ULONG __buf_##n##_2 = (BN_ULONG)0;
-#define BN_CP_32_TO_BUF(n) __buf_##n##_1 = (a)[2*(n)];\
- __buf_##n##_2 = (a)[2*(n)+1];
-#define BN_CP_32_FROM_BUF(a,n) *(a)++ = __buf_##n##_1;\
- *(a)++ = __buf_##n##_2;
-#define BN_CASE_32_BIT(n,a) case 2*(n)+1: __buf_##n##_2 = (a)[2*(n)+1];\
- case 2*(n): __buf_##n##_1 = (a)[2*(n)];
+#define bn_cp_32(to, n, from, m) \
+ { \
+ (to)[(n)*2] = (from)[(m)*2]; \
+ (to)[(n)*2+1] = (from)[(m)*2+1];\
+ }
+#define bn_32_set_0(to, n) { (to)[(n)*2] = 0; (to)[(n)*2+1] = 0; }
#elif BN_BITS2 == 8
-#define __buf_0_3 (BN_ULONG)0
-#define __buf_0_4 (BN_ULONG)0
-#define __buf_0_5 (BN_ULONG)0
-#define __buf_0_6 (BN_ULONG)0
-#define __buf_0_7 (BN_ULONG)0
-#define __buf_0_8 (BN_ULONG)0
-#define BN_64_BIT_BUF(n) BN_ULONG __buf_##n##_1 = (BN_ULONG)0;\
- BN_ULONG __buf_##n##_2 = (BN_ULONG)0;\
- BN_ULONG __buf_##n##_3 = (BN_ULONG)0;\
- BN_ULONG __buf_##n##_4 = (BN_ULONG)0;\
- BN_ULONG __buf_##n##_5 = (BN_ULONG)0;\
- BN_ULONG __buf_##n##_6 = (BN_ULONG)0;\
- BN_ULONG __buf_##n##_7 = (BN_ULONG)0;\
- BN_ULONG __buf_##n##_8 = (BN_ULONG)0;
-#define BN_CP_64_TO_BUF(n) __buf_##n##_8 = (a)[8*(n)+7];\
- __buf_##n##_7 = (a)[8*(n)+6];\
- __buf_##n##_6 = (a)[8*(n)+5];\
- __buf_##n##_5 = (a)[8*(n)+4];\
- __buf_##n##_4 = (a)[8*(n)+3];\
- __buf_##n##_3 = (a)[8*(n)+2];\
- __buf_##n##_2 = (a)[8*(n)+1];\
- __buf_##n##_1 = (a)[8*(n)];
-#define BN_CP_64_FROM_BUF(a,n) *(a)++ = __buf_##n##_1;\
- *(a)++ = __buf_##n##_2;\
- *(a)++ = __buf_##n##_3;\
- *(a)++ = __buf_##n##_4;\
- *(a)++ = __buf_##n##_5;\
- *(a)++ = __buf_##n##_6;\
- *(a)++ = __buf_##n##_7;\
- *(a)++ = __buf_##n##_8;
-#define BN_CASE_64_BIT(n,a) case 8*(n)+7: __buf_##n##_8 = (a)[8*(n)+7];\
- case 8*(n)+6: __buf_##n##_7 = (a)[8*(n)+6];\
- case 8*(n)+5: __buf_##n##_6 = (a)[8*(n)+5];\
- case 8*(n)+4: __buf_##n##_5 = (a)[8*(n)+4];\
- case 8*(n)+3: __buf_##n##_4 = (a)[8*(n)+3];\
- case 8*(n)+2: __buf_##n##_3 = (a)[8*(n)+2];\
- case 8*(n)+1: __buf_##n##_2 = (a)[8*(n)+1];\
- case 8*(n): __buf_##n##_1 = (a)[8*(n)];
-#define BN_32_BIT_BUF(n) BN_ULONG __buf_##n##_1 = (BN_ULONG)0;\
- BN_ULONG __buf_##n##_2 = (BN_ULONG)0;\
- BN_ULONG __buf_##n##_3 = (BN_ULONG)0;\
- BN_ULONG __buf_##n##_4 = (BN_ULONG)0;
-#define BN_CP_32_TO_BUF(n) __buf_##n##_1 = (a)[4*(n)];\
- __buf_##n##_2 = (a)[4*(n)+1];\
- __buf_##n##_3 = (a)[4*(n)+2];\
- __buf_##n##_4 = (a)[4*(n)+3];
-#define BN_CP_32_FROM_BUF(a,n) *(a)++ = __buf_##n##_1;\
- *(a)++ = __buf_##n##_2;\
- *(a)++ = __buf_##n##_3;\
- *(a)++ = __buf_##n##_4;
-#define BN_CASE_32_BIT(n,a) case 4*(n)+3: __buf_##n##_4 = (a)[4*(n)+3];\
- case 4*(n)+2: __buf_##n##_3 = (a)[4*(n)+2];\
- case 4*(n)+1: __buf_##n##_2 = (a)[4*(n)+1];\
- case 4*(n): __buf_##n##_1 = (a)[4*(n)];
+#define bn_cp_32(to, n, from, m) \
+ { \
+ (to)[(n)*4] = (from)[(m)*4]; \
+ (to)[(n)*4+1] = (from)[(m)*4+1];\
+ (to)[(n)*4+2] = (from)[(m)*4+2];\
+ (to)[(n)*4+3] = (from)[(m)*4+3];\
+ }
+#define bn_32_set_0(to, n) \
+ { (to)[(n)*4] = (BN_ULONG)0; (to)[(n)*4+1] = (BN_ULONG)0; \
+ (to)[(n)*4+2] = (BN_ULONG)0; (to)[(n)*4+3] = (BN_ULONG)0; }
#endif
+#endif /* BN_BITS2 != 64 */
-#define BN_192_SET(d,a1,a2,a3) \
- {\
- register BN_ULONG *td = (d);\
- BN_CP_64_FROM_BUF(td,a3); BN_CP_64_FROM_BUF(td,a2);\
- BN_CP_64_FROM_BUF(td,a1);\
+#define nist_set_192(to, from, a1, a2, a3) \
+ { \
+ if (a3 != 0) bn_cp_64(to, 0, from, (a3) - 3) else bn_64_set_0(to, 0)\
+ bn_cp_64(to, 1, from, (a2) - 3) \
+ if (a1 != 0) bn_cp_64(to, 2, from, (a1) - 3) else bn_64_set_0(to, 2)\
}
int BN_nist_mod_192(BIGNUM *r, const BIGNUM *a, const BIGNUM *field,
BN_CTX *ctx)
{
- int top;
+ int top = a->top, i;
BN_ULONG carry = 0;
- register BN_ULONG *r_d, *a_d;
- BN_ULONG t_d[BN_NIST_192_TOP];
- BN_64_BIT_BUF(3) BN_64_BIT_BUF(4)
- BN_64_BIT_BUF(5)
-
- top = BN_ucmp(field, a);
- if (top == 0)
- return BN_zero(r);
- else if (top > 0)
- return (r == a)? 1 : (BN_copy(r ,a) != NULL);
+ register BN_ULONG *r_d, *a_d = a->d;
+ BN_ULONG t_d[BN_NIST_192_TOP],
+ buf[BN_NIST_192_TOP];
- if (r != a)
- if (!BN_ncopy(r, a, BN_NIST_192_TOP))
- return 0;
+ i = BN_ucmp(field, a);
+ if (i == 0)
+ {
+ BN_zero(r);
+ return 1;
+ }
+ else if (i > 0)
+ return (r == a) ? 1 : (BN_copy(r ,a) != NULL);
- r_d = r->d;
- a_d = a->d;
- top = a->top-1;
+ if (top == BN_NIST_192_TOP)
+ return BN_usub(r, a, field);
- switch (top)
+ if (r != a)
{
- BN_CASE_64_BIT(5, a_d)
- BN_CASE_64_BIT(4, a_d)
- BN_CASE_64_BIT(3, a_d)
- break;
- default: /* a->top == field->top */
- return BN_usub(r, a, field);
+ if (!bn_wexpand(r, BN_NIST_192_TOP))
+ return 0;
+ r_d = r->d;
+ nist_cp_bn(r_d, a_d, BN_NIST_192_TOP);
}
+ else
+ r_d = a_d;
- BN_192_SET(t_d,0,3,3)
+ nist_cp_bn_0(buf, a_d + BN_NIST_192_TOP, top - BN_NIST_192_TOP, BN_NIST_192_TOP);
+
+ nist_set_192(t_d, buf, 0, 3, 3);
if (bn_add_words(r_d, r_d, t_d, BN_NIST_192_TOP))
++carry;
- BN_192_SET(t_d,4,4,0)
+ nist_set_192(t_d, buf, 4, 4, 0);
if (bn_add_words(r_d, r_d, t_d, BN_NIST_192_TOP))
++carry;
- BN_192_SET(t_d,5,5,5)
+ nist_set_192(t_d, buf, 5, 5, 5)
if (bn_add_words(r_d, r_d, t_d, BN_NIST_192_TOP))
++carry;
--carry;
}
r->top = BN_NIST_192_TOP;
-
-#if 1
- bn_clear_top2max(r);
-#endif
- bn_fix_top(r);
-
+ bn_correct_top(r);
if (BN_ucmp(r, field) >= 0)
{
bn_sub_words(r_d, r_d, _nist_p_192, BN_NIST_192_TOP);
- bn_fix_top(r);
+ bn_correct_top(r);
}
+ bn_check_top(r);
return 1;
}
-#define BN_224_SET(d,a1,a2,a3,a4,a5,a6,a7) \
- {\
- register BN_ULONG *td = (d);\
- BN_CP_32_FROM_BUF(td,a7); BN_CP_32_FROM_BUF(td,a6);\
- BN_CP_32_FROM_BUF(td,a5); BN_CP_32_FROM_BUF(td,a4);\
- BN_CP_32_FROM_BUF(td,a3); BN_CP_32_FROM_BUF(td,a2);\
- BN_CP_32_FROM_BUF(td,a1);\
+#define nist_set_224(to, from, a1, a2, a3, a4, a5, a6, a7) \
+ { \
+ if (a7 != 0) bn_cp_32(to, 0, from, (a7) - 7) else bn_32_set_0(to, 0)\
+ if (a6 != 0) bn_cp_32(to, 1, from, (a6) - 7) else bn_32_set_0(to, 1)\
+ if (a5 != 0) bn_cp_32(to, 2, from, (a5) - 7) else bn_32_set_0(to, 2)\
+ if (a4 != 0) bn_cp_32(to, 3, from, (a4) - 7) else bn_32_set_0(to, 3)\
+ if (a3 != 0) bn_cp_32(to, 4, from, (a3) - 7) else bn_32_set_0(to, 4)\
+ if (a2 != 0) bn_cp_32(to, 5, from, (a2) - 7) else bn_32_set_0(to, 5)\
+ if (a1 != 0) bn_cp_32(to, 6, from, (a1) - 7) else bn_32_set_0(to, 6)\
}
int BN_nist_mod_224(BIGNUM *r, const BIGNUM *a, const BIGNUM *field,
BN_CTX *ctx)
{
-#ifndef NO_32_BIT_TYPE
- int tmp_int;
+#if BN_BITS2 != 64
+ int top = a->top, i;
int carry = 0;
- BN_ULONG *r_d, *a_d;
- BN_ULONG t_d[BN_NIST_224_TOP];
- BN_32_BIT_BUF(7) BN_32_BIT_BUF(8)
- BN_32_BIT_BUF(9) BN_32_BIT_BUF(10)
- BN_32_BIT_BUF(11) BN_32_BIT_BUF(12)
- BN_32_BIT_BUF(13)
-
- tmp_int = BN_ucmp(field, a);
- if (tmp_int == 0)
- return BN_zero(r);
- else if (tmp_int > 0)
- return (r == a)? 1 : (BN_copy(r ,a) != NULL);
-
- if (r != a)
- if (!BN_ncopy(r, a, BN_NIST_224_TOP))
- return 0;
+ BN_ULONG *r_d, *a_d = a->d;
+ BN_ULONG t_d[BN_NIST_224_TOP],
+ buf[BN_NIST_224_TOP];
- r_d = r->d;
- a_d = a->d;
+ i = BN_ucmp(field, a);
+ if (i == 0)
+ {
+ BN_zero(r);
+ return 1;
+ }
+ else if (i > 0)
+ return (r == a)? 1 : (BN_copy(r ,a) != NULL);
- tmp_int = a->top-1;
+ if (top == BN_NIST_224_TOP)
+ return BN_usub(r, a, field);
- switch (tmp_int)
+ if (r != a)
{
- BN_CASE_32_BIT(13, a_d)
- BN_CASE_32_BIT(12, a_d)
- BN_CASE_32_BIT(11, a_d)
- BN_CASE_32_BIT(10, a_d)
- BN_CASE_32_BIT(9, a_d)
- BN_CASE_32_BIT(8, a_d)
- BN_CASE_32_BIT(7, a_d)
- break;
- default: /* a->top == field->top */
- return BN_usub(r, a, field);
+ if (!bn_wexpand(r, BN_NIST_224_TOP))
+ return 0;
+ r_d = r->d;
+ nist_cp_bn(r_d, a_d, BN_NIST_224_TOP);
}
+ else
+ r_d = a_d;
- BN_224_SET(t_d,10,9,8,7,0,0,0)
+ nist_cp_bn_0(buf, a_d + BN_NIST_224_TOP, top - BN_NIST_224_TOP, BN_NIST_224_TOP);
+
+ nist_set_224(t_d, buf, 10, 9, 8, 7, 0, 0, 0);
if (bn_add_words(r_d, r_d, t_d, BN_NIST_224_TOP))
++carry;
- BN_224_SET(t_d,0,13,12,11,0,0,0)
+ nist_set_224(t_d, buf, 0, 13, 12, 11, 0, 0, 0);
if (bn_add_words(r_d, r_d, t_d, BN_NIST_224_TOP))
++carry;
- BN_224_SET(t_d,13,12,11,10,9,8,7)
+ nist_set_224(t_d, buf, 13, 12, 11, 10, 9, 8, 7);
if (bn_sub_words(r_d, r_d, t_d, BN_NIST_224_TOP))
--carry;
- BN_224_SET(t_d,0,0,0,0,13,12,11)
+ nist_set_224(t_d, buf, 0, 0, 0, 0, 13, 12, 11);
if (bn_sub_words(r_d, r_d, t_d, BN_NIST_224_TOP))
--carry;
}
r->top = BN_NIST_224_TOP;
-#if 1
- bn_clear_top2max(r);
-#endif
- bn_fix_top(r);
-
+ bn_correct_top(r);
if (BN_ucmp(r, field) >= 0)
{
bn_sub_words(r_d, r_d, _nist_p_224, BN_NIST_224_TOP);
- bn_fix_top(r);
+ bn_correct_top(r);
}
+ bn_check_top(r);
return 1;
#else
return 0;
_is_set_256_data = 1;
}
-#define BN_256_SET(d,a1,a2,a3,a4,a5,a6,a7,a8) \
- {\
- register BN_ULONG *td = (d);\
- BN_CP_32_FROM_BUF(td,a8); BN_CP_32_FROM_BUF(td,a7);\
- BN_CP_32_FROM_BUF(td,a6); BN_CP_32_FROM_BUF(td,a5);\
- BN_CP_32_FROM_BUF(td,a4); BN_CP_32_FROM_BUF(td,a3);\
- BN_CP_32_FROM_BUF(td,a2); BN_CP_32_FROM_BUF(td,a1);\
+#define nist_set_256(to, from, a1, a2, a3, a4, a5, a6, a7, a8) \
+ { \
+ if (a8 != 0) bn_cp_32(to, 0, from, (a8) - 8) else bn_32_set_0(to, 0)\
+ if (a7 != 0) bn_cp_32(to, 1, from, (a7) - 8) else bn_32_set_0(to, 1)\
+ if (a6 != 0) bn_cp_32(to, 2, from, (a6) - 8) else bn_32_set_0(to, 2)\
+ if (a5 != 0) bn_cp_32(to, 3, from, (a5) - 8) else bn_32_set_0(to, 3)\
+ if (a4 != 0) bn_cp_32(to, 4, from, (a4) - 8) else bn_32_set_0(to, 4)\
+ if (a3 != 0) bn_cp_32(to, 5, from, (a3) - 8) else bn_32_set_0(to, 5)\
+ if (a2 != 0) bn_cp_32(to, 6, from, (a2) - 8) else bn_32_set_0(to, 6)\
+ if (a1 != 0) bn_cp_32(to, 7, from, (a1) - 8) else bn_32_set_0(to, 7)\
}
int BN_nist_mod_256(BIGNUM *r, const BIGNUM *a, const BIGNUM *field,
BN_CTX *ctx)
{
-#ifndef NO_32_BIT_TYPE
- int tmp_int;
+#if BN_BITS2 != 64
+ int i, top = a->top;
int carry = 0;
- register BN_ULONG *a_d, *r_d;
- BN_ULONG t_d[BN_NIST_256_TOP];
- BN_ULONG t_d2[BN_NIST_256_TOP];
- BN_32_BIT_BUF(8) BN_32_BIT_BUF(9)
- BN_32_BIT_BUF(10) BN_32_BIT_BUF(11)
- BN_32_BIT_BUF(12) BN_32_BIT_BUF(13)
- BN_32_BIT_BUF(14) BN_32_BIT_BUF(15)
+ register BN_ULONG *a_d = a->d, *r_d;
+ BN_ULONG t_d[BN_NIST_256_TOP],
+ t_d2[BN_NIST_256_TOP],
+ buf[BN_NIST_256_TOP];
if (!_is_set_256_data)
{
CRYPTO_w_unlock(CRYPTO_LOCK_BN);
}
- tmp_int = BN_ucmp(field, a);
- if (tmp_int == 0)
- return BN_zero(r);
- else if (tmp_int > 0)
+ i = BN_ucmp(field, a);
+ if (i == 0)
+ {
+ BN_zero(r);
+ return 1;
+ }
+ else if (i > 0)
return (r == a)? 1 : (BN_copy(r ,a) != NULL);
- if (r != a)
- if (!BN_ncopy(r, a, BN_NIST_256_TOP))
- return 0;
+ if (top == BN_NIST_256_TOP)
+ return BN_usub(r, a, field);
- tmp_int = a->top-1;
-
- a_d = a->d;
- r_d = r->d;
- switch (tmp_int)
+ if (r != a)
{
- BN_CASE_32_BIT(15, a_d)
- BN_CASE_32_BIT(14, a_d)
- BN_CASE_32_BIT(13, a_d)
- BN_CASE_32_BIT(12, a_d)
- BN_CASE_32_BIT(11, a_d)
- BN_CASE_32_BIT(10, a_d)
- BN_CASE_32_BIT(9, a_d)
- BN_CASE_32_BIT(8, a_d)
- break;
- default: /* a->top == field->top */
- return BN_usub(r, a, field);
+ if (!bn_wexpand(r, BN_NIST_256_TOP))
+ return 0;
+ r_d = r->d;
+ nist_cp_bn(r_d, a_d, BN_NIST_256_TOP);
}
+ else
+ r_d = a_d;
+
+ nist_cp_bn_0(buf, a_d + BN_NIST_256_TOP, top - BN_NIST_256_TOP, BN_NIST_256_TOP);
/*S1*/
- BN_256_SET(t_d,15,14,13,12,11,0,0,0)
+ nist_set_256(t_d, buf, 15, 14, 13, 12, 11, 0, 0, 0);
/*S2*/
- BN_256_SET(t_d2,0,15,14,13,12,0,0,0)
+ nist_set_256(t_d2,buf, 0, 15, 14, 13, 12, 0, 0, 0);
if (bn_add_words(t_d, t_d, t_d2, BN_NIST_256_TOP))
carry = 2;
/* left shift */
register BN_ULONG *ap,t,c;
ap = t_d;
c=0;
- for (tmp_int=BN_NIST_256_TOP; tmp_int != 0; --tmp_int)
+ for (i = BN_NIST_256_TOP; i != 0; --i)
{
t= *ap;
*(ap++)=((t<<1)|c)&BN_MASK2;
if (bn_add_words(r_d, r_d, t_d, BN_NIST_256_TOP))
++carry;
/*S3*/
- BN_256_SET(t_d,15,14,0,0,0,10,9,8)
+ nist_set_256(t_d, buf, 15, 14, 0, 0, 0, 10, 9, 8);
if (bn_add_words(r_d, r_d, t_d, BN_NIST_256_TOP))
++carry;
/*S4*/
- BN_256_SET(t_d,8,13,15,14,13,11,10,9)
+ nist_set_256(t_d, buf, 8, 13, 15, 14, 13, 11, 10, 9);
if (bn_add_words(r_d, r_d, t_d, BN_NIST_256_TOP))
++carry;
/*D1*/
- BN_256_SET(t_d,10,8,0,0,0,13,12,11)
+ nist_set_256(t_d, buf, 10, 8, 0, 0, 0, 13, 12, 11);
if (bn_sub_words(r_d, r_d, t_d, BN_NIST_256_TOP))
--carry;
/*D2*/
- BN_256_SET(t_d,11,9,0,0,15,14,13,12)
+ nist_set_256(t_d, buf, 11, 9, 0, 0, 15, 14, 13, 12);
if (bn_sub_words(r_d, r_d, t_d, BN_NIST_256_TOP))
--carry;
/*D3*/
- BN_256_SET(t_d,12,0,10,9,8,15,14,13)
+ nist_set_256(t_d, buf, 12, 0, 10, 9, 8, 15, 14, 13);
if (bn_sub_words(r_d, r_d, t_d, BN_NIST_256_TOP))
--carry;
/*D4*/
- BN_256_SET(t_d,13,0,11,10,9,0,15,14)
+ nist_set_256(t_d, buf, 13, 0, 11, 10, 9, 0, 15, 14);
if (bn_sub_words(r_d, r_d, t_d, BN_NIST_256_TOP))
--carry;
}
r->top = BN_NIST_256_TOP;
-#if 1
- bn_clear_top2max(r);
-#endif
- bn_fix_top(r);
-
+ bn_correct_top(r);
if (BN_ucmp(r, field) >= 0)
{
bn_sub_words(r_d, r_d, _nist_p_256, BN_NIST_256_TOP);
- bn_fix_top(r);
+ bn_correct_top(r);
}
+ bn_check_top(r);
return 1;
#else
return 0;
_is_set_384_data = 1;
}
-#define BN_384_SET(d,a1,a2,a3,a4,a5,a6,a7,a8,a9,a10,a11,a12) \
- {\
- register BN_ULONG *td = (d);\
- BN_CP_32_FROM_BUF(td,a12); BN_CP_32_FROM_BUF(td,a11);\
- BN_CP_32_FROM_BUF(td,a10); BN_CP_32_FROM_BUF(td,a9);\
- BN_CP_32_FROM_BUF(td,a8); BN_CP_32_FROM_BUF(td,a7);\
- BN_CP_32_FROM_BUF(td,a6); BN_CP_32_FROM_BUF(td,a5);\
- BN_CP_32_FROM_BUF(td,a4); BN_CP_32_FROM_BUF(td,a3);\
- BN_CP_32_FROM_BUF(td,a2); BN_CP_32_FROM_BUF(td,a1);\
+#define nist_set_384(to,from,a1,a2,a3,a4,a5,a6,a7,a8,a9,a10,a11,a12) \
+ { \
+ if (a12 != 0) bn_cp_32(to, 0, from, (a12) - 12) else bn_32_set_0(to, 0)\
+ if (a11 != 0) bn_cp_32(to, 1, from, (a11) - 12) else bn_32_set_0(to, 1)\
+ if (a10 != 0) bn_cp_32(to, 2, from, (a10) - 12) else bn_32_set_0(to, 2)\
+ if (a9 != 0) bn_cp_32(to, 3, from, (a9) - 12) else bn_32_set_0(to, 3)\
+ if (a8 != 0) bn_cp_32(to, 4, from, (a8) - 12) else bn_32_set_0(to, 4)\
+ if (a7 != 0) bn_cp_32(to, 5, from, (a7) - 12) else bn_32_set_0(to, 5)\
+ if (a6 != 0) bn_cp_32(to, 6, from, (a6) - 12) else bn_32_set_0(to, 6)\
+ if (a5 != 0) bn_cp_32(to, 7, from, (a5) - 12) else bn_32_set_0(to, 7)\
+ if (a4 != 0) bn_cp_32(to, 8, from, (a4) - 12) else bn_32_set_0(to, 8)\
+ if (a3 != 0) bn_cp_32(to, 9, from, (a3) - 12) else bn_32_set_0(to, 9)\
+ if (a2 != 0) bn_cp_32(to, 10, from, (a2) - 12) else bn_32_set_0(to, 10)\
+ if (a1 != 0) bn_cp_32(to, 11, from, (a1) - 12) else bn_32_set_0(to, 11)\
}
int BN_nist_mod_384(BIGNUM *r, const BIGNUM *a, const BIGNUM *field,
BN_CTX *ctx)
{
-#ifndef NO_32_BIT_TYPE
- int tmp_int;
+#if BN_BITS2 != 64
+ int i, top = a->top;
int carry = 0;
- register BN_ULONG *r_d, *a_d;
- BN_ULONG t_d[BN_NIST_384_TOP];
- BN_32_BIT_BUF(12) BN_32_BIT_BUF(13)
- BN_32_BIT_BUF(14) BN_32_BIT_BUF(15)
- BN_32_BIT_BUF(16) BN_32_BIT_BUF(17)
- BN_32_BIT_BUF(18) BN_32_BIT_BUF(19)
- BN_32_BIT_BUF(20) BN_32_BIT_BUF(21)
- BN_32_BIT_BUF(22) BN_32_BIT_BUF(23)
+ register BN_ULONG *r_d, *a_d = a->d;
+ BN_ULONG t_d[BN_NIST_384_TOP],
+ buf[BN_NIST_384_TOP];
if (!_is_set_384_data)
{
CRYPTO_w_unlock(CRYPTO_LOCK_BN);
}
- tmp_int = BN_ucmp(field, a);
- if (tmp_int == 0)
- return BN_zero(r);
- else if (tmp_int > 0)
+ i = BN_ucmp(field, a);
+ if (i == 0)
+ {
+ BN_zero(r);
+ return 1;
+ }
+ else if (i > 0)
return (r == a)? 1 : (BN_copy(r ,a) != NULL);
- if (r != a)
- if (!BN_ncopy(r, a, BN_NIST_384_TOP))
- return 0;
+ if (top == BN_NIST_384_TOP)
+ return BN_usub(r, a, field);
- r_d = r->d;
- a_d = a->d;
- tmp_int = a->top-1;
-
- switch (tmp_int)
+ if (r != a)
{
- BN_CASE_32_BIT(23, a_d)
- BN_CASE_32_BIT(22, a_d)
- BN_CASE_32_BIT(21, a_d)
- BN_CASE_32_BIT(20, a_d)
- BN_CASE_32_BIT(19, a_d)
- BN_CASE_32_BIT(18, a_d)
- BN_CASE_32_BIT(17, a_d)
- BN_CASE_32_BIT(16, a_d)
- BN_CASE_32_BIT(15, a_d)
- BN_CASE_32_BIT(14, a_d)
- BN_CASE_32_BIT(13, a_d)
- BN_CASE_32_BIT(12, a_d)
- break;
- default: /* a->top == field->top */
- return BN_usub(r, a, field);
+ if (!bn_wexpand(r, BN_NIST_384_TOP))
+ return 0;
+ r_d = r->d;
+ nist_cp_bn(r_d, a_d, BN_NIST_384_TOP);
}
+ else
+ r_d = a_d;
+
+ nist_cp_bn_0(buf, a_d + BN_NIST_384_TOP, top - BN_NIST_384_TOP, BN_NIST_384_TOP);
/*S1*/
- BN_256_SET(t_d,0,0,0,0,0,23,22,21)
+ nist_set_256(t_d, buf, 0, 0, 0, 0, 0, 23-4, 22-4, 21-4);
/* left shift */
{
register BN_ULONG *ap,t,c;
ap = t_d;
c=0;
- for (tmp_int=BN_NIST_256_TOP; tmp_int != 0; --tmp_int)
+ for (i = BN_NIST_256_TOP; i != 0; --i)
{
t= *ap;
*(ap++)=((t<<1)|c)&BN_MASK2;
if (bn_add_words(r_d+(128/BN_BITS2), r_d+(128/BN_BITS2),
t_d, BN_NIST_256_TOP))
++carry;
- /*S2*/
- BN_384_SET(t_d,23,22,21,20,19,18,17,16,15,14,13,12)
- if (bn_add_words(r_d, r_d, t_d, BN_NIST_384_TOP))
+ /*S2 */
+ if (bn_add_words(r_d, r_d, buf, BN_NIST_384_TOP))
++carry;
/*S3*/
- BN_384_SET(t_d,20,19,18,17,16,15,14,13,12,23,22,21)
+ nist_set_384(t_d,buf,20,19,18,17,16,15,14,13,12,23,22,21);
if (bn_add_words(r_d, r_d, t_d, BN_NIST_384_TOP))
++carry;
/*S4*/
- BN_384_SET(t_d,19,18,17,16,15,14,13,12,20,0,23,0)
+ nist_set_384(t_d,buf,19,18,17,16,15,14,13,12,20,0,23,0);
if (bn_add_words(r_d, r_d, t_d, BN_NIST_384_TOP))
++carry;
/*S5*/
- BN_256_SET(t_d,0,0,0,0,23,22,21,20)
+ nist_set_256(t_d, buf, 0, 0, 0, 0, 23-4, 22-4, 21-4, 20-4);
if (bn_add_words(r_d+(128/BN_BITS2), r_d+(128/BN_BITS2),
t_d, BN_NIST_256_TOP))
++carry;
/*S6*/
- BN_384_SET(t_d,0,0,0,0,0,0,23,22,21,0,0,20)
+ nist_set_384(t_d,buf,0,0,0,0,0,0,23,22,21,0,0,20);
if (bn_add_words(r_d, r_d, t_d, BN_NIST_384_TOP))
++carry;
/*D1*/
- BN_384_SET(t_d,22,21,20,19,18,17,16,15,14,13,12,23)
+ nist_set_384(t_d,buf,22,21,20,19,18,17,16,15,14,13,12,23);
if (bn_sub_words(r_d, r_d, t_d, BN_NIST_384_TOP))
--carry;
/*D2*/
- BN_384_SET(t_d,0,0,0,0,0,0,0,23,22,21,20,0)
+ nist_set_384(t_d,buf,0,0,0,0,0,0,0,23,22,21,20,0);
if (bn_sub_words(r_d, r_d, t_d, BN_NIST_384_TOP))
--carry;
/*D3*/
- BN_384_SET(t_d,0,0,0,0,0,0,0,23,23,0,0,0)
+ nist_set_384(t_d,buf,0,0,0,0,0,0,0,23,23,0,0,0);
if (bn_sub_words(r_d, r_d, t_d, BN_NIST_384_TOP))
--carry;
}
r->top = BN_NIST_384_TOP;
-#if 1
- bn_clear_top2max(r);
-#endif
- bn_fix_top(r);
-
+ bn_correct_top(r);
if (BN_ucmp(r, field) >= 0)
{
bn_sub_words(r_d, r_d, _nist_p_384, BN_NIST_384_TOP);
- bn_fix_top(r);
+ bn_correct_top(r);
}
+ bn_check_top(r);
return 1;
#else
return 0;
if (!tmp)
goto err;
- if (!BN_ncopy(tmp, a, BN_NIST_521_TOP))
- return 0;
- if (!BN_rshift(r, a, 521))
- return 0;
+ if (!bn_wexpand(tmp, BN_NIST_521_TOP))
+ goto err;
+ nist_cp_bn(tmp->d, a->d, BN_NIST_521_TOP);
- if (tmp->top == BN_NIST_521_TOP)
- tmp->d[BN_NIST_521_TOP-1] &= BN_NIST_521_TOP_MASK;
+ tmp->top = BN_NIST_521_TOP;
+ tmp->d[BN_NIST_521_TOP-1] &= BN_NIST_521_TOP_MASK;
+ bn_correct_top(tmp);
+
+ if (!BN_rshift(r, a, 521))
+ goto err;
if (!BN_uadd(r, tmp, r))
- return 0;
+ goto err;
top = r->top;
r_d = r->d;
if (top == BN_NIST_521_TOP &&
BN_NIST_ADD_ONE(r_d)
r_d[BN_NIST_521_TOP-1] &= BN_NIST_521_TOP_MASK;
}
- bn_fix_top(r);
+ bn_correct_top(r);
ret = 1;
err:
BN_CTX_end(ctx);
-
+
+ bn_check_top(r);
return ret;
}
projects / openssl.git / blobdiff