diff options
Diffstat (limited to 'crypto/bn/bn_lcl.h')
| -rw-r--r-- | crypto/bn/bn_lcl.h | 88 |
1 files changed, 88 insertions, 0 deletions
diff --git a/crypto/bn/bn_lcl.h b/crypto/bn/bn_lcl.h index 013c0b3..0f3205c 100644 --- a/crypto/bn/bn_lcl.h +++ b/crypto/bn/bn_lcl.h @@ -118,6 +118,94 @@ 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 |