BN_div() cleanup: replace the use of BN_sub and BN_add with bn_sub_words
and bn_add_words to avoid using fake bignums to window other bignums that
can lead to corruption. This change allows a

BN_div() cleanup: replace the use of BN_sub and BN_add with bn_sub_words
and bn_add_words to avoid using fake bignums to window other bignums that
can lead to corruption. This change allows all bignum tests to pass with
BN_DEBUG and BN_DEBUG_RAND debugging and valgrind. NB: This should be
tested on a few different architectures and configuration targets, as the
bignum code this deals with is quite preprocessor (and assembly) sensitive.

Submitted by: Nils Narsch
Reviewed by: Geoff Thorpe, Ulf Moeller

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Put more debug screening in BN_div() and correct a comment.

Put the first stage of my bignum debugging adventures into CVS. This code
is itself experimental, and in addition may cause execution to break on
existing openssl "bugs" that previously were

Put the first stage of my bignum debugging adventures into CVS. This code
is itself experimental, and in addition may cause execution to break on
existing openssl "bugs" that previously were harmless or at least
invisible.

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bn_div() does some pretty nasty things with temporary variables,
constructing BIGNUM structures with pointers offset into other bignums
(among other things). This corrects some of it that is

bn_div() does some pretty nasty things with temporary variables,
constructing BIGNUM structures with pointers offset into other bignums
(among other things). This corrects some of it that is too plainly insane,
and tries to ensure that bignums are normalised when passed to other
functions.

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This fixes a couple of cases where an inconsistent BIGNUM could be passed as
input to a function.

A little debugging.

x86_64 performance patch.

Check the return values where memory allocation failures may happen.
PR: 49

openbsd-x86 macros

Submitted by: Toomas Kiisk <vix@cyber.ee>

The IRIX fix. Asm recap and corresponding declation.

Submitted by:
Reviewed by:
PR:

Fix a bug which caused BN_div to produce the
wrong result if rm==num and num < 0.

Make all configuration macros available for application by making
sure they are available in opensslconf.h, by giving them names starting
with "OPENSSL_" to avoid conflicts with other package

Make all configuration macros available for application by making
sure they are available in opensslconf.h, by giving them names starting
with "OPENSSL_" to avoid conflicts with other packages and by making
sure e_os2.h will cover all platform-specific cases together with
opensslconf.h.

I've checked fairly well that nothing breaks with this (apart from
external software that will adapt if they have used something like
NO_KRB5), but I can't guarantee it completely, so a review of this
change would be a good thing.

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There is no C version of bn_div_3_words

Sign-related fixes (and tests).

BN_mod_exp_mont does not work properly yet if modulus m
is negative (we want computations to be carried out
modulo |m|).

modular arithmetics

"make update"

BN_CTX-related fixes.

Changes needed for Tandem NSK, supplied by Scott Uroff (scott@xypro.com).

Fix warnings with BIO_dump_indent().

New NO_INLINE_ASM macro. Primary target for the moment is Solaris x86
which can't stand GNU C assembler templates.

BN_div bugfix. The q-- loop should not be entered in the n0==d0 case.

New functions BN_CTX_start(), BN_CTX_get(), BN_CTX_end() to access
temporary BIGNUMs. BN_CTX still uses a fixed number of BIGNUMs, but
the BN_CTX implementation could now easily be changed.

Support for "multiply high" instruction, see BN_UMULT_HIGH comment in
crypto/bn/bn_lcl.h for further details. It should be noted that for
the moment of this writing the code was tested only o

Support for "multiply high" instruction, see BN_UMULT_HIGH comment in
crypto/bn/bn_lcl.h for further details. It should be noted that for
the moment of this writing the code was tested only on Alpha. If
compiled with DEC C the C implementation exhibits 12% performance
improvement over the crypto/bn/asm/alpha.s (on EV56 box running
AlphaLinux). GNU C is (unfortunately) 8% behind the assembler
implementation. But it's OpenVMS Alpha users who *may* benefit most
as 'apps/openssl speed rsa' exhibits 6 (six) times performance
improvement over the original VMS bignum implementation. Where "*may*"
means "as soon as code is enabled though #define SIXTY_FOUR_BIT and
crypto/bn/asm/vms.mar is skipped."

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match the prototype

If n0 == d0, we must alway compute 'rem' "by hand"

Typo in preprocessor symbol.

Solaris x86 assembler problem is already addressed in ./config
(bug reports keep coming in because that was still missing in 0.9.4)