OPENSSL_EXTERN

[openssl.git] / crypto / bn / bn_lcl.h

diff --git a/crypto/bn/bn_lcl.h b/crypto/bn/bn_lcl.h
index edfd788338322096c531eef615e440b16119cf5f..041a832b6bc283e229d20c3944804cfcbea76c7f 100644 (file)
--- a/crypto/bn/bn_lcl.h
+++ b/crypto/bn/bn_lcl.h
@@ -59,23 +59,79 @@
 #ifndef HEADER_BN_LCL_H
 #define HEADER_BN_LCL_H
 
-#include "bn.h"
+#include <openssl/bn.h>
 
 #ifdef  __cplusplus
 extern "C" {
 #endif
 
+/* Pentium pro 16,16,16,32,64 */
+/* Alpha       16,16,16,16.64 */
+#define BN_MULL_SIZE_NORMAL                    (16) /* 32 */
+#define BN_MUL_RECURSIVE_SIZE_NORMAL           (16) /* 32 less than */
+#define BN_SQR_RECURSIVE_SIZE_NORMAL           (16) /* 32 */
+#define BN_MUL_LOW_RECURSIVE_SIZE_NORMAL       (32) /* 32 */
+#define BN_MONT_CTX_SET_SIZE_WORD              (64) /* 32 */
+
+#if 0
+#ifndef BN_MUL_COMBA
+/* #define bn_mul_comba8(r,a,b)        bn_mul_normal(r,a,8,b,8) */
+/* #define bn_mul_comba4(r,a,b)        bn_mul_normal(r,a,4,b,4) */
+#endif
+
+#ifndef BN_SQR_COMBA
+/* This is probably faster than using the C code - I need to check */
+#define bn_sqr_comba8(r,a)     bn_mul_normal(r,a,8,a,8)
+#define bn_sqr_comba4(r,a)     bn_mul_normal(r,a,4,a,4)
+#endif
+#endif
+
 /*************************************************************
  * Using the long long type
  */
 #define Lw(t)    (((BN_ULONG)(t))&BN_MASK2)
 #define Hw(t)    (((BN_ULONG)((t)>>BN_BITS2))&BN_MASK2)
 
-#define bn_fix_top(a) \
-        { \
-        BN_ULONG *fix_top_l; \
-        for (fix_top_l= &((a)->d[(a)->top-1]); (a)->top > 0; (a)->top--) \
-               if (*(fix_top_l--)) break; \
+/* These are used for internal error checking and are not normally used */
+#ifdef BN_DEBUG
+#define bn_check_top(a) \
+       { if (((a)->top < 0) || ((a)->top > (a)->max)) \
+               { char *nullp=NULL; *nullp='z'; } }
+#define bn_check_num(a) if ((a) < 0) { char *nullp=NULL; *nullp='z'; }
+#else
+#define bn_check_top(a)
+#define bn_check_num(a)
+#endif
+
+/* This macro is to add extra stuff for development checking */
+#ifdef BN_DEBUG
+#define        bn_set_max(r) ((r)->max=(r)->top,BN_set_flags((r),BN_FLG_STATIC_DATA))
+#else
+#define        bn_set_max(r)
+#endif
+
+/* These macros are used to 'take' a section of a bignum for read only use */
+#define bn_set_low(r,a,n) \
+       { \
+       (r)->top=((a)->top > (n))?(n):(a)->top; \
+       (r)->d=(a)->d; \
+       (r)->neg=(a)->neg; \
+       (r)->flags|=BN_FLG_STATIC_DATA; \
+       bn_set_max(r); \
+       }
+
+#define bn_set_high(r,a,n) \
+       { \
+       if ((a)->top > (n)) \
+               { \
+               (r)->top=(a)->top-n; \
+               (r)->d= &((a)->d[n]); \
+               } \
+       else \
+               (r)->top=0; \
+       (r)->neg=(a)->neg; \
+       (r)->flags|=BN_FLG_STATIC_DATA; \
+       bn_set_max(r); \
        }
 
 /* #define bn_expand(n,b) ((((b)/BN_BITS2) <= (n)->max)?(n):bn_expand2((n),(b))) */
@@ -175,21 +231,22 @@ extern "C" {
 
 #endif
 
-#ifndef NOPROTO
+OPENSSL_EXTERN int bn_limit_bits;
+OPENSSL_EXTERN int bn_limit_num;        /* (1<<bn_limit_bits) */
+/* Recursive 'low' limit */
+OPENSSL_EXTERN int bn_limit_bits_low;
+OPENSSL_EXTERN int bn_limit_num_low;    /* (1<<bn_limit_bits_low) */
+/* Do modified 'high' part calculation' */
+OPENSSL_EXTERN int bn_limit_bits_high;
+OPENSSL_EXTERN int bn_limit_num_high;   /* (1<<bn_limit_bits_high) */
+OPENSSL_EXTERN int bn_limit_bits_mont;
+OPENSSL_EXTERN int bn_limit_num_mont;   /* (1<<bn_limit_bits_mont) */
 
-BIGNUM *bn_expand2(BIGNUM *b, int bits);
 
-#ifdef X86_ASM
-void bn_add_words(BN_ULONG *r,BN_ULONG *a,int num);
-#endif
-
-#else
+BIGNUM *bn_expand2(BIGNUM *b, int bits);
 
-BIGNUM *bn_expand2();
 #ifdef X86_ASM
-BN_ULONG bn_add_words();
-#endif
-
+void bn_add_words(BN_ULONG *r,BN_ULONG *a,BN_ULONG *b,int num);
 #endif
 
 #ifdef  __cplusplus
@@ -197,3 +254,8 @@ BN_ULONG bn_add_words();
 #endif
 
 #endif
+
+void bn_mul_low_recursive(BN_ULONG *r,BN_ULONG *a,BN_ULONG *b,int n2,BN_ULONG *t);
+void bn_mul_high(BN_ULONG *r,BN_ULONG *a,BN_ULONG *b,BN_ULONG *l,int n2, BN_ULONG *t);
+
+