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really is only used by OpenPGP, and largely it was named S2K here
because the OpenPGP S2K was implemented years before the ones in PKCS
#5. We have a typedef of PBKDF to S2K, and an inlined get_s2k that
calls get_pbkdf for source compatability.
There doesn't seem to be any reason to have a forward for the renamed
s2k.h header - to actually use a PBKDF, you'd have to either include
lookup.h and call get_s2k / get_pbkdf, or else include an
algorithm-specific header and use it directly. In either case,
including s2k.h is neither necessary nor sufficient.
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including loadstor.h actually just needed get_byte and nothing else.
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and iteration count, force it to be passed to each call to derive_key.
So remove current_salt, set_iterations, new_random_salt, and change_salt
functions from S2K interface.
Update examples and test application to match.
While I was in there, change the passhash example to use 64 bit salts
and 128 bit PBKDF2 outputs.
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bswap.h); too many external apps rely on loadstor.h existing.
Define 64-bit generic bswap in terms of 32-bit bswap, since it's
not much slower if 32-bit is also generic, and much faster if
it's not. This may be quite helpful on 32-bit x86 in particular.
Change formulation of generic 32-bit bswap. It may be faster or
slower depending on the CPU, especially the latency and throuput
of rotate instructions, but should be faster on an ideally
superscalar processor with rotate instructions (ie, what I expect
future CPUs to look more like).
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Fixes for the amalgamation generator for internal headers.
Remove BOTAN_DLL exporting macros from all internal-only headers;
the classes/functions there don't need to be exported, and
avoiding the PIC/GOT indirection can be a big win.
Add missing BOTAN_DLLs where necessary, mostly gfpmath and cvc
For GCC, use -fvisibility=hidden and set BOTAN_DLL to the
visibility __attribute__ to export those classes/functions.
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up during the Fedora submission review, that each source file include some
text about the license. One handy Perl script later and each file now has
the line
Distributed under the terms of the Botan license
after the copyright notices.
While I was in there modifying every file anyway, I also stripped out the
remainder of the block comments (lots of astericks before and after the
text); this is stylistic thing I picked up when I was first learning C++
but in retrospect it is not a good style as the structure makes it harder
to modify comments (with the result that comments become fewer, shorter and
are less likely to be updated, which are not good things).
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