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Modify ECB to use parallel encryption/decryption where possible
Add toggles in build.h specifying how many blocks to process in parallel.
Defaults to 8 blocks for all modes, which is sufficient that any likely
parallelism can be extracted (via SIMD or concurrent execution) but not
so much as to seem likely to cause cache problems (8*128 bits = 128 bytes,
or two x86 cache lines)
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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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they were not used at all outside of the core library implementations.
One change is that now get_bc_pad returns a new object, instead of a
pointer to a const shared padding method. This does imply a bit more
dynamic memory overhead, but the modes are pretty light (stateless, for
the most part), so this doesn't seem like a big deal. So modify ECB and
CBC classes to add destructors to delete the padding object.
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