-/* crypto/bn/bn_lcl.h */
/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
* All rights reserved.
*
#ifndef HEADER_BN_LCL_H
# define HEADER_BN_LCL_H
+/*
+ * The EDK2 build doesn't use bn_conf.h; it sets THIRTY_TWO_BIT or
+ * SIXTY_FOUR_BIT in its own environment since it doesn't re-run our
+ * Configure script and needs to support both 32-bit and 64-bit.
+ */
+# include <openssl/opensslconf.h>
+
+# if !defined(OPENSSL_SYS_UEFI)
+# include "internal/bn_conf.h"
+# endif
+
# include "internal/bn_int.h"
#ifdef __cplusplus
extern "C" {
#endif
+/*
+ * These preprocessor symbols control various aspects of the bignum headers
+ * and library code. They're not defined by any "normal" configuration, as
+ * they are intended for development and testing purposes. NB: defining all
+ * three can be useful for debugging application code as well as openssl
+ * itself. BN_DEBUG - turn on various debugging alterations to the bignum
+ * code BN_DEBUG_RAND - uses random poisoning of unused words to trip up
+ * mismanagement of bignum internals. You must also define BN_DEBUG.
+ */
+/* #define BN_DEBUG */
+/* #define BN_DEBUG_RAND */
+
+# ifndef OPENSSL_SMALL_FOOTPRINT
+# define BN_MUL_COMBA
+# define BN_SQR_COMBA
+# define BN_RECURSION
+# endif
+
+/*
+ * This next option uses the C libraries (2 word)/(1 word) function. If it is
+ * not defined, I use my C version (which is slower). The reason for this
+ * flag is that when the particular C compiler library routine is used, and
+ * the library is linked with a different compiler, the library is missing.
+ * This mostly happens when the library is built with gcc and then linked
+ * using normal cc. This would be a common occurrence because gcc normally
+ * produces code that is 2 times faster than system compilers for the big
+ * number stuff. For machines with only one compiler (or shared libraries),
+ * this should be on. Again this in only really a problem on machines using
+ * "long long's", are 32bit, and are not using my assembler code.
+ */
+# if defined(OPENSSL_SYS_MSDOS) || defined(OPENSSL_SYS_WINDOWS) || \
+ defined(OPENSSL_SYS_WIN32) || defined(linux)
+# define BN_DIV2W
+# endif
+
+/*
+ * 64-bit processor with LP64 ABI
+ */
+# ifdef SIXTY_FOUR_BIT_LONG
+# define BN_ULLONG unsigned long long
+# define BN_BITS4 32
+# define BN_MASK2 (0xffffffffffffffffL)
+# define BN_MASK2l (0xffffffffL)
+# define BN_MASK2h (0xffffffff00000000L)
+# define BN_MASK2h1 (0xffffffff80000000L)
+# define BN_DEC_CONV (10000000000000000000UL)
+# define BN_DEC_NUM 19
+# define BN_DEC_FMT1 "%lu"
+# define BN_DEC_FMT2 "%019lu"
+# endif
+
+/*
+ * 64-bit processor other than LP64 ABI
+ */
+# ifdef SIXTY_FOUR_BIT
+# undef BN_LLONG
+# undef BN_ULLONG
+# define BN_BITS4 32
+# define BN_MASK2 (0xffffffffffffffffLL)
+# define BN_MASK2l (0xffffffffL)
+# define BN_MASK2h (0xffffffff00000000LL)
+# define BN_MASK2h1 (0xffffffff80000000LL)
+# define BN_DEC_CONV (10000000000000000000ULL)
+# define BN_DEC_NUM 19
+# define BN_DEC_FMT1 "%llu"
+# define BN_DEC_FMT2 "%019llu"
+# endif
+
+# ifdef THIRTY_TWO_BIT
+# ifdef BN_LLONG
+# if defined(_WIN32) && !defined(__GNUC__)
+# define BN_ULLONG unsigned __int64
+# else
+# define BN_ULLONG unsigned long long
+# endif
+# endif
+# define BN_BITS4 16
+# define BN_MASK2 (0xffffffffL)
+# define BN_MASK2l (0xffff)
+# define BN_MASK2h1 (0xffff8000L)
+# define BN_MASK2h (0xffff0000L)
+# define BN_DEC_CONV (1000000000L)
+# define BN_DEC_NUM 9
+# define BN_DEC_FMT1 "%u"
+# define BN_DEC_FMT2 "%09u"
+# endif
+
+
/*-
* Bignum consistency macros
* There is one "API" macro, bn_fix_top(), for stripping leading zeroes from
* *genuinely* constant variables that aren't mutable \
* wouldn't be constructed with top!=dmax. */ \
BN_ULONG *_not_const; \
- memcpy(&_not_const, &_bnum1->d, sizeof(BN_ULONG*)); \
- RAND_pseudo_bytes(&_tmp_char, 1); \
- memset((unsigned char *)(_not_const + _bnum1->top), _tmp_char, \
- (_bnum1->dmax - _bnum1->top) * sizeof(BN_ULONG)); \
+ memcpy(&_not_const, &_bnum1->d, sizeof(_not_const)); \
+ RAND_bytes(&_tmp_char, 1); /* Debug only - safe to ignore error return */\
+ memset(_not_const + _bnum1->top, _tmp_char, \
+ sizeof(*_not_const) * (_bnum1->dmax - _bnum1->top)); \
} \
} while(0)
# ifdef BN_DEBUG_TRIX
* (with draws in between). Very small exponents are often selected
* with low Hamming weight, so we use w = 1 for b <= 23.
*/
-# if 1
-# define BN_window_bits_for_exponent_size(b) \
+# define BN_window_bits_for_exponent_size(b) \
((b) > 671 ? 6 : \
(b) > 239 ? 5 : \
(b) > 79 ? 4 : \
(b) > 23 ? 3 : 1)
-# else
-/*
- * Old SSLeay/OpenSSL table. Maximum window size was 5, so this table differs
- * for b==1024; but it coincides for other interesting values (b==160,
- * b==512).
- */
-# define BN_window_bits_for_exponent_size(b) \
- ((b) > 255 ? 5 : \
- (b) > 127 ? 4 : \
- (b) > 17 ? 3 : 1)
-# endif
/*
* BN_mod_exp_mont_conttime is based on the assumption that the L1 data cache
# endif
# elif defined(__mips) && (defined(SIXTY_FOUR_BIT) || defined(SIXTY_FOUR_BIT_LONG))
# if defined(__GNUC__) && __GNUC__>=2
-# if __GNUC__>=4 && __GNUC_MINOR__>=4
+# if __GNUC__>4 || (__GNUC__>=4 && __GNUC_MINOR__>=4)
/* "h" constraint is no more since 4.4 */
# define BN_UMULT_HIGH(a,b) (((__uint128_t)(a)*(b))>>64)
# define BN_UMULT_LOHI(low,high,a,b) ({ \
}
# endif /* !BN_LLONG */
-void BN_init(BIGNUM *a);
void BN_RECP_CTX_init(BN_RECP_CTX *recp);
void BN_MONT_CTX_init(BN_MONT_CTX *ctx);
+void bn_init(BIGNUM *a);
void bn_mul_normal(BN_ULONG *r, BN_ULONG *a, int na, BN_ULONG *b, int nb);
void bn_mul_comba8(BN_ULONG *r, BN_ULONG *a, BN_ULONG *b);
void bn_mul_comba4(BN_ULONG *r, BN_ULONG *a, BN_ULONG *b);
projects / openssl.git / blobdiff