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Upgrade openssl from 1.1.0e to 1.1.1b, with source code. 4.0.78

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winlin 2021-03-01 20:47:57 +08:00
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trunk/3rdparty/openssl-1.1-fit/crypto/bn/bn_lcl.h vendored Normal file
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/*
* Copyright 1995-2018 The OpenSSL Project Authors. All Rights Reserved.
*
* Licensed under the OpenSSL license (the "License"). You may not use
* this file except in compliance with the License. You can obtain a copy
* in the file LICENSE in the source distribution or at
* https://www.openssl.org/source/license.html
*/
#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"
/*
* 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
* bignum data after direct manipulations on the data. There is also an
* "internal" macro, bn_check_top(), for verifying that there are no leading
* zeroes. Unfortunately, some auditing is required due to the fact that
* bn_fix_top() has become an overabused duct-tape because bignum data is
* occasionally passed around in an inconsistent state. So the following
* changes have been made to sort this out;
* - bn_fix_top()s implementation has been moved to bn_correct_top()
* - if BN_DEBUG isn't defined, bn_fix_top() maps to bn_correct_top(), and
* bn_check_top() is as before.
* - if BN_DEBUG *is* defined;
* - bn_check_top() tries to pollute unused words even if the bignum 'top' is
* consistent. (ed: only if BN_DEBUG_RAND is defined)
* - bn_fix_top() maps to bn_check_top() rather than "fixing" anything.
* The idea is to have debug builds flag up inconsistent bignums when they
* occur. If that occurs in a bn_fix_top(), we examine the code in question; if
* the use of bn_fix_top() was appropriate (ie. it follows directly after code
* that manipulates the bignum) it is converted to bn_correct_top(), and if it
* was not appropriate, we convert it permanently to bn_check_top() and track
* down the cause of the bug. Eventually, no internal code should be using the
* bn_fix_top() macro. External applications and libraries should try this with
* their own code too, both in terms of building against the openssl headers
* with BN_DEBUG defined *and* linking with a version of OpenSSL built with it
* defined. This not only improves external code, it provides more test
* coverage for openssl's own code.
*/
# ifdef BN_DEBUG
/*
* The new BN_FLG_FIXED_TOP flag marks vectors that were not treated with
* bn_correct_top, in other words such vectors are permitted to have zeros
* in most significant limbs. Such vectors are used internally to achieve
* execution time invariance for critical operations with private keys.
* It's BN_DEBUG-only flag, because user application is not supposed to
* observe it anyway. Moreover, optimizing compiler would actually remove
* all operations manipulating the bit in question in non-BN_DEBUG build.
*/
# define BN_FLG_FIXED_TOP 0x10000
# ifdef BN_DEBUG_RAND
# define bn_pollute(a) \
do { \
const BIGNUM *_bnum1 = (a); \
if (_bnum1->top < _bnum1->dmax) { \
unsigned char _tmp_char; \
/* We cast away const without the compiler knowing, any \
* *genuinely* constant variables that aren't mutable \
* wouldn't be constructed with top!=dmax. */ \
BN_ULONG *_not_const; \
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)
# else
# define bn_pollute(a)
# endif
# define bn_check_top(a) \
do { \
const BIGNUM *_bnum2 = (a); \
if (_bnum2 != NULL) { \
int _top = _bnum2->top; \
(void)ossl_assert((_top == 0 && !_bnum2->neg) || \
(_top && ((_bnum2->flags & BN_FLG_FIXED_TOP) \
|| _bnum2->d[_top - 1] != 0))); \
bn_pollute(_bnum2); \
} \
} while(0)
# define bn_fix_top(a) bn_check_top(a)
# define bn_check_size(bn, bits) bn_wcheck_size(bn, ((bits+BN_BITS2-1))/BN_BITS2)
# define bn_wcheck_size(bn, words) \
do { \
const BIGNUM *_bnum2 = (bn); \
assert((words) <= (_bnum2)->dmax && \
(words) >= (_bnum2)->top); \
/* avoid unused variable warning with NDEBUG */ \
(void)(_bnum2); \
} while(0)
# else /* !BN_DEBUG */
# define BN_FLG_FIXED_TOP 0
# define bn_pollute(a)
# define bn_check_top(a)
# define bn_fix_top(a) bn_correct_top(a)
# define bn_check_size(bn, bits)
# define bn_wcheck_size(bn, words)
# endif
BN_ULONG bn_mul_add_words(BN_ULONG *rp, const BN_ULONG *ap, int num,
BN_ULONG w);
BN_ULONG bn_mul_words(BN_ULONG *rp, const BN_ULONG *ap, int num, BN_ULONG w);
void bn_sqr_words(BN_ULONG *rp, const BN_ULONG *ap, int num);
BN_ULONG bn_div_words(BN_ULONG h, BN_ULONG l, BN_ULONG d);
BN_ULONG bn_add_words(BN_ULONG *rp, const BN_ULONG *ap, const BN_ULONG *bp,
int num);
BN_ULONG bn_sub_words(BN_ULONG *rp, const BN_ULONG *ap, const BN_ULONG *bp,
int num);
struct bignum_st {
BN_ULONG *d; /* Pointer to an array of 'BN_BITS2' bit
* chunks. */
int top; /* Index of last used d +1. */
/* The next are internal book keeping for bn_expand. */
int dmax; /* Size of the d array. */
int neg; /* one if the number is negative */
int flags;
};
/* Used for montgomery multiplication */
struct bn_mont_ctx_st {
int ri; /* number of bits in R */
BIGNUM RR; /* used to convert to montgomery form,
possibly zero-padded */
BIGNUM N; /* The modulus */
BIGNUM Ni; /* R*(1/R mod N) - N*Ni = 1 (Ni is only
* stored for bignum algorithm) */
BN_ULONG n0[2]; /* least significant word(s) of Ni; (type
* changed with 0.9.9, was "BN_ULONG n0;"
* before) */
int flags;
};
/*
* Used for reciprocal division/mod functions It cannot be shared between
* threads
*/
struct bn_recp_ctx_st {
BIGNUM N; /* the divisor */
BIGNUM Nr; /* the reciprocal */
int num_bits;
int shift;
int flags;
};
/* Used for slow "generation" functions. */
struct bn_gencb_st {
unsigned int ver; /* To handle binary (in)compatibility */
void *arg; /* callback-specific data */
union {
/* if (ver==1) - handles old style callbacks */
void (*cb_1) (int, int, void *);
/* if (ver==2) - new callback style */
int (*cb_2) (int, int, BN_GENCB *);
} cb;
};
/*-
* BN_window_bits_for_exponent_size -- macro for sliding window mod_exp functions
*
*
* For window size 'w' (w >= 2) and a random 'b' bits exponent,
* the number of multiplications is a constant plus on average
*
* 2^(w-1) + (b-w)/(w+1);
*
* here 2^(w-1) is for precomputing the table (we actually need
* entries only for windows that have the lowest bit set), and
* (b-w)/(w+1) is an approximation for the expected number of
* w-bit windows, not counting the first one.
*
* Thus we should use
*
* w >= 6 if b > 671
* w = 5 if 671 > b > 239
* w = 4 if 239 > b > 79
* w = 3 if 79 > b > 23
* w <= 2 if 23 > b
*
* (with draws in between). Very small exponents are often selected
* with low Hamming weight, so we use w = 1 for b <= 23.
*/
# define BN_window_bits_for_exponent_size(b) \
((b) > 671 ? 6 : \
(b) > 239 ? 5 : \
(b) > 79 ? 4 : \
(b) > 23 ? 3 : 1)
/*
* BN_mod_exp_mont_conttime is based on the assumption that the L1 data cache
* line width of the target processor is at least the following value.
*/
# define MOD_EXP_CTIME_MIN_CACHE_LINE_WIDTH ( 64 )
# define MOD_EXP_CTIME_MIN_CACHE_LINE_MASK (MOD_EXP_CTIME_MIN_CACHE_LINE_WIDTH - 1)
/*
* Window sizes optimized for fixed window size modular exponentiation
* algorithm (BN_mod_exp_mont_consttime). To achieve the security goals of
* BN_mode_exp_mont_consttime, the maximum size of the window must not exceed
* log_2(MOD_EXP_CTIME_MIN_CACHE_LINE_WIDTH). Window size thresholds are
* defined for cache line sizes of 32 and 64, cache line sizes where
* log_2(32)=5 and log_2(64)=6 respectively. A window size of 7 should only be
* used on processors that have a 128 byte or greater cache line size.
*/
# if MOD_EXP_CTIME_MIN_CACHE_LINE_WIDTH == 64
# define BN_window_bits_for_ctime_exponent_size(b) \
((b) > 937 ? 6 : \
(b) > 306 ? 5 : \
(b) > 89 ? 4 : \
(b) > 22 ? 3 : 1)
# define BN_MAX_WINDOW_BITS_FOR_CTIME_EXPONENT_SIZE (6)
# elif MOD_EXP_CTIME_MIN_CACHE_LINE_WIDTH == 32
# define BN_window_bits_for_ctime_exponent_size(b) \
((b) > 306 ? 5 : \
(b) > 89 ? 4 : \
(b) > 22 ? 3 : 1)
# define BN_MAX_WINDOW_BITS_FOR_CTIME_EXPONENT_SIZE (5)
# 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 */
/*
* 2011-02-22 SMS. In various places, a size_t variable or a type cast to
* size_t was used to perform integer-only operations on pointers. This
* failed on VMS with 64-bit pointers (CC /POINTER_SIZE = 64) because size_t
* is still only 32 bits. What's needed in these cases is an integer type
* with the same size as a pointer, which size_t is not certain to be. The
* only fix here is VMS-specific.
*/
# if defined(OPENSSL_SYS_VMS)
# if __INITIAL_POINTER_SIZE == 64
# define PTR_SIZE_INT long long
# else /* __INITIAL_POINTER_SIZE == 64 */
# define PTR_SIZE_INT int
# endif /* __INITIAL_POINTER_SIZE == 64 [else] */
# elif !defined(PTR_SIZE_INT) /* defined(OPENSSL_SYS_VMS) */
# define PTR_SIZE_INT size_t
# endif /* defined(OPENSSL_SYS_VMS) [else] */
# if !defined(OPENSSL_NO_ASM) && !defined(OPENSSL_NO_INLINE_ASM) && !defined(PEDANTIC)
/*
* BN_UMULT_HIGH section.
* If the compiler doesn't support 2*N integer type, then you have to
* replace every N*N multiplication with 4 (N/2)*(N/2) accompanied by some
* shifts and additions which unavoidably results in severe performance
* penalties. Of course provided that the hardware is capable of producing
* 2*N result... That's when you normally start considering assembler
* implementation. However! It should be pointed out that some CPUs (e.g.,
* PowerPC, Alpha, and IA-64) provide *separate* instruction calculating
* the upper half of the product placing the result into a general
* purpose register. Now *if* the compiler supports inline assembler,
* then it's not impossible to implement the "bignum" routines (and have
* the compiler optimize 'em) exhibiting "native" performance in C. That's
* what BN_UMULT_HIGH macro is about:-) Note that more recent compilers do
* support 2*64 integer type, which is also used here.
*/
# if defined(__SIZEOF_INT128__) && __SIZEOF_INT128__==16 && \
(defined(SIXTY_FOUR_BIT) || defined(SIXTY_FOUR_BIT_LONG))
# define BN_UMULT_HIGH(a,b) (((__uint128_t)(a)*(b))>>64)
# define BN_UMULT_LOHI(low,high,a,b) ({ \
__uint128_t ret=(__uint128_t)(a)*(b); \
(high)=ret>>64; (low)=ret; })
# elif defined(__alpha) && (defined(SIXTY_FOUR_BIT_LONG) || defined(SIXTY_FOUR_BIT))
# if defined(__DECC)
# include <c_asm.h>
# define BN_UMULT_HIGH(a,b) (BN_ULONG)asm("umulh %a0,%a1,%v0",(a),(b))
# elif defined(__GNUC__) && __GNUC__>=2
# define BN_UMULT_HIGH(a,b) ({ \
register BN_ULONG ret; \
asm ("umulh %1,%2,%0" \
: "=r"(ret) \
: "r"(a), "r"(b)); \
ret; })
# endif /* compiler */
# elif defined(_ARCH_PPC64) && defined(SIXTY_FOUR_BIT_LONG)
# if defined(__GNUC__) && __GNUC__>=2
# define BN_UMULT_HIGH(a,b) ({ \
register BN_ULONG ret; \
asm ("mulhdu %0,%1,%2" \
: "=r"(ret) \
: "r"(a), "r"(b)); \
ret; })
# endif /* compiler */
# elif (defined(__x86_64) || defined(__x86_64__)) && \
(defined(SIXTY_FOUR_BIT_LONG) || defined(SIXTY_FOUR_BIT))
# if defined(__GNUC__) && __GNUC__>=2
# define BN_UMULT_HIGH(a,b) ({ \
register BN_ULONG ret,discard; \
asm ("mulq %3" \
: "=a"(discard),"=d"(ret) \
: "a"(a), "g"(b) \
: "cc"); \
ret; })
# define BN_UMULT_LOHI(low,high,a,b) \
asm ("mulq %3" \
: "=a"(low),"=d"(high) \
: "a"(a),"g"(b) \
: "cc");
# endif
# elif (defined(_M_AMD64) || defined(_M_X64)) && defined(SIXTY_FOUR_BIT)
# if defined(_MSC_VER) && _MSC_VER>=1400
unsigned __int64 __umulh(unsigned __int64 a, unsigned __int64 b);
unsigned __int64 _umul128(unsigned __int64 a, unsigned __int64 b,
unsigned __int64 *h);
# pragma intrinsic(__umulh,_umul128)
# define BN_UMULT_HIGH(a,b) __umulh((a),(b))
# define BN_UMULT_LOHI(low,high,a,b) ((low)=_umul128((a),(b),&(high)))
# endif
# elif defined(__mips) && (defined(SIXTY_FOUR_BIT) || defined(SIXTY_FOUR_BIT_LONG))
# if defined(__GNUC__) && __GNUC__>=2
# define BN_UMULT_HIGH(a,b) ({ \
register BN_ULONG ret; \
asm ("dmultu %1,%2" \
: "=h"(ret) \
: "r"(a), "r"(b) : "l"); \
ret; })
# define BN_UMULT_LOHI(low,high,a,b) \
asm ("dmultu %2,%3" \
: "=l"(low),"=h"(high) \
: "r"(a), "r"(b));
# endif
# elif defined(__aarch64__) && defined(SIXTY_FOUR_BIT_LONG)
# if defined(__GNUC__) && __GNUC__>=2
# define BN_UMULT_HIGH(a,b) ({ \
register BN_ULONG ret; \
asm ("umulh %0,%1,%2" \
: "=r"(ret) \
: "r"(a), "r"(b)); \
ret; })
# endif
# endif /* cpu */
# endif /* OPENSSL_NO_ASM */
# ifdef BN_DEBUG_RAND
# define bn_clear_top2max(a) \
{ \
int ind = (a)->dmax - (a)->top; \
BN_ULONG *ftl = &(a)->d[(a)->top-1]; \
for (; ind != 0; ind--) \
*(++ftl) = 0x0; \
}
# else
# define bn_clear_top2max(a)
# endif
# ifdef BN_LLONG
/*******************************************************************
* Using the long long type, has to be twice as wide as BN_ULONG...
*/
# define Lw(t) (((BN_ULONG)(t))&BN_MASK2)
# define Hw(t) (((BN_ULONG)((t)>>BN_BITS2))&BN_MASK2)
# define mul_add(r,a,w,c) { \
BN_ULLONG t; \
t=(BN_ULLONG)w * (a) + (r) + (c); \
(r)= Lw(t); \
(c)= Hw(t); \
}
# define mul(r,a,w,c) { \
BN_ULLONG t; \
t=(BN_ULLONG)w * (a) + (c); \
(r)= Lw(t); \
(c)= Hw(t); \
}
# define sqr(r0,r1,a) { \
BN_ULLONG t; \
t=(BN_ULLONG)(a)*(a); \
(r0)=Lw(t); \
(r1)=Hw(t); \
}
# elif defined(BN_UMULT_LOHI)
# define mul_add(r,a,w,c) { \
BN_ULONG high,low,ret,tmp=(a); \
ret = (r); \
BN_UMULT_LOHI(low,high,w,tmp); \
ret += (c); \
(c) = (ret<(c))?1:0; \
(c) += high; \
ret += low; \
(c) += (ret<low)?1:0; \
(r) = ret; \
}
# define mul(r,a,w,c) { \
BN_ULONG high,low,ret,ta=(a); \
BN_UMULT_LOHI(low,high,w,ta); \
ret = low + (c); \
(c) = high; \
(c) += (ret<low)?1:0; \
(r) = ret; \
}
# define sqr(r0,r1,a) { \
BN_ULONG tmp=(a); \
BN_UMULT_LOHI(r0,r1,tmp,tmp); \
}
# elif defined(BN_UMULT_HIGH)
# define mul_add(r,a,w,c) { \
BN_ULONG high,low,ret,tmp=(a); \
ret = (r); \
high= BN_UMULT_HIGH(w,tmp); \
ret += (c); \
low = (w) * tmp; \
(c) = (ret<(c))?1:0; \
(c) += high; \
ret += low; \
(c) += (ret<low)?1:0; \
(r) = ret; \
}
# define mul(r,a,w,c) { \
BN_ULONG high,low,ret,ta=(a); \
low = (w) * ta; \
high= BN_UMULT_HIGH(w,ta); \
ret = low + (c); \
(c) = high; \
(c) += (ret<low)?1:0; \
(r) = ret; \
}
# define sqr(r0,r1,a) { \
BN_ULONG tmp=(a); \
(r0) = tmp * tmp; \
(r1) = BN_UMULT_HIGH(tmp,tmp); \
}
# else
/*************************************************************
* No long long type
*/
# define LBITS(a) ((a)&BN_MASK2l)
# define HBITS(a) (((a)>>BN_BITS4)&BN_MASK2l)
# define L2HBITS(a) (((a)<<BN_BITS4)&BN_MASK2)
# define LLBITS(a) ((a)&BN_MASKl)
# define LHBITS(a) (((a)>>BN_BITS2)&BN_MASKl)
# define LL2HBITS(a) ((BN_ULLONG)((a)&BN_MASKl)<<BN_BITS2)
# define mul64(l,h,bl,bh) \
{ \
BN_ULONG m,m1,lt,ht; \
\
lt=l; \
ht=h; \
m =(bh)*(lt); \
lt=(bl)*(lt); \
m1=(bl)*(ht); \
ht =(bh)*(ht); \
m=(m+m1)&BN_MASK2; if (m < m1) ht+=L2HBITS((BN_ULONG)1); \
ht+=HBITS(m); \
m1=L2HBITS(m); \
lt=(lt+m1)&BN_MASK2; if (lt < m1) ht++; \
(l)=lt; \
(h)=ht; \
}
# define sqr64(lo,ho,in) \
{ \
BN_ULONG l,h,m; \
\
h=(in); \
l=LBITS(h); \
h=HBITS(h); \
m =(l)*(h); \
l*=l; \
h*=h; \
h+=(m&BN_MASK2h1)>>(BN_BITS4-1); \
m =(m&BN_MASK2l)<<(BN_BITS4+1); \
l=(l+m)&BN_MASK2; if (l < m) h++; \
(lo)=l; \
(ho)=h; \
}
# define mul_add(r,a,bl,bh,c) { \
BN_ULONG l,h; \
\
h= (a); \
l=LBITS(h); \
h=HBITS(h); \
mul64(l,h,(bl),(bh)); \
\
/* non-multiply part */ \
l=(l+(c))&BN_MASK2; if (l < (c)) h++; \
(c)=(r); \
l=(l+(c))&BN_MASK2; if (l < (c)) h++; \
(c)=h&BN_MASK2; \
(r)=l; \
}
# define mul(r,a,bl,bh,c) { \
BN_ULONG l,h; \
\
h= (a); \
l=LBITS(h); \
h=HBITS(h); \
mul64(l,h,(bl),(bh)); \
\
/* non-multiply part */ \
l+=(c); if ((l&BN_MASK2) < (c)) h++; \
(c)=h&BN_MASK2; \
(r)=l&BN_MASK2; \
}
# endif /* !BN_LLONG */
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);
void bn_sqr_normal(BN_ULONG *r, const BN_ULONG *a, int n, BN_ULONG *tmp);
void bn_sqr_comba8(BN_ULONG *r, const BN_ULONG *a);
void bn_sqr_comba4(BN_ULONG *r, const BN_ULONG *a);
int bn_cmp_words(const BN_ULONG *a, const BN_ULONG *b, int n);
int bn_cmp_part_words(const BN_ULONG *a, const BN_ULONG *b, int cl, int dl);
void bn_mul_recursive(BN_ULONG *r, BN_ULONG *a, BN_ULONG *b, int n2,
int dna, int dnb, BN_ULONG *t);
void bn_mul_part_recursive(BN_ULONG *r, BN_ULONG *a, BN_ULONG *b,
int n, int tna, int tnb, BN_ULONG *t);
void bn_sqr_recursive(BN_ULONG *r, const BN_ULONG *a, int n2, BN_ULONG *t);
void bn_mul_low_normal(BN_ULONG *r, BN_ULONG *a, BN_ULONG *b, int n);
void bn_mul_low_recursive(BN_ULONG *r, BN_ULONG *a, BN_ULONG *b, int n2,
BN_ULONG *t);
BN_ULONG bn_sub_part_words(BN_ULONG *r, const BN_ULONG *a, const BN_ULONG *b,
int cl, int dl);
int bn_mul_mont(BN_ULONG *rp, const BN_ULONG *ap, const BN_ULONG *bp,
const BN_ULONG *np, const BN_ULONG *n0, int num);
BIGNUM *int_bn_mod_inverse(BIGNUM *in,
const BIGNUM *a, const BIGNUM *n, BN_CTX *ctx,
int *noinv);
int bn_probable_prime_dh(BIGNUM *rnd, int bits,
const BIGNUM *add, const BIGNUM *rem, BN_CTX *ctx);
static ossl_inline BIGNUM *bn_expand(BIGNUM *a, int bits)
{
if (bits > (INT_MAX - BN_BITS2 + 1))
return NULL;
if (((bits+BN_BITS2-1)/BN_BITS2) <= (a)->dmax)
return a;
return bn_expand2((a),(bits+BN_BITS2-1)/BN_BITS2);
}
#endif