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The classes used the wrong hash with the MAC. The legacy gear should have used SHA1, not SHA256.
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The strategy of "cleanup under-aligned buffers" is not scaling well. Corner cases are still turing up. The library has some corner-case breaks, like old 32-bit Intels. And it still has not solved the AltiVec and Power8 alignment problems.
For now we are backing out the changes and investigating other strategies
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AltiVec and Power8
This commit supports the upcoming AltiVec and Power8 processor support for DefaultEncryptors and DefaultDecryptors. The commit favors AlignedSecByteBlock over SecByteBlock in places where messages are handled on the AltiVec and Power8 processor data paths. The data paths include all block cipher modes of operation, and some filters like FilterWithBufferedInput.
Intel and ARM processors are tolerant of under-aligned buffers when using crypto intstructions. AltiVec and Power8 are less tolerant, and they simply ignore the three low-order bits to ensure an address is aligned. The AltiVec and Power8 have caused a fair number of wild writes on the stack and in the heap.
Testing on a 64-bit Intel Skylake show a marked improvement in performance. We suspect GCC is generating better code since it knows the alignment of the pointers, and does not have to emit fixup code for under-aligned and mis-aligned data. Testing on an mid-2000's 32-bit VIA C7-D with SSE2+SSSE3 showed no improvement, and no performance was lost.
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passed: 128 deflates and inflates
passed: 128 zlib decompress and compress
default.cpp:69:2: runtime error: null pointer passed as argument 2, which is declared to never be null
/usr/include/x86_64-linux-gnu/bits/string3.h:53:71: runtime error: null pointer passed as argument 2, which is declared to never be null
Information Dispersal and Secret Sharing...
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We have made a fair number of changes, and we don't want WD to receive credit for issues he was not part of
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garbage to the end of some source files during drag and drop from guest to host.
This reverts commit c45435812225aa68d122c7de246e5f60b509766c.
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version)
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std::cerr, ...
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{libc++, libstdc++}. It included bringing in the correct <memory> in <stdcpp.h>, and then only including <stdcpp.h> when <memory> was needed.
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compilers. The macro was needed to help with managing old compilers, like GCC 4.2.1, present on OpenBSD
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- added AuthenticatedSymmetricCipher interface class and Filter wrappers
- added CCM, GCM (with SSE2 assembly), CMAC, and SEED
- improved AES speed on x86 and x64
- removed WORD64_AVAILABLE; compiler 64-bit int support is now required
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