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* Change `make_compressor` and `make_decompressor` to return alloyd2015-05-101-7/+7
| | | | | compression type instead of the base transform class. Add some final annotations.
* Add a runtime map of string->func() which when called returnlloyd2015-01-281-5/+5
| | | | | | | | | | | | | | | | | Transforms and BlockCiphers. Registration for all types is done at startup but is very cheap as just a std::function and a std::map entry are created, no actual objects are created until needed. This is a huge improvement over Algorithm_Factory which used T::clone() as the function and thus kept a prototype object of each type in memory. Replace existing lookup mechanisms for ciphers, AEADs, and compression to use the transform lookup. The existing Engine framework remains in place for BlockCipher, but the engines now just call to the registry instead of having hardcoded lookups. s/Transformation/Transform/ with typedefs for compatability. Remove lib/selftest code (for runtime selftesting): not the right approach.
* Ensure all files have copyright and license info.lloyd2015-01-101-1/+1
| | | | | Update license header line to specify the terms and refer to the file, neither of which it included before.
* Figure out which decompressor to use based on the input file extension.lloyd2014-12-091-1/+0
| | | | | | | | Rename Bzip to Bzip2, and split Zlib and Deflate compressors into two completely distinct types rather than using a bool flag to the Zlib constructor. Ignore null pointers to our free implementation (LZMA does this).
* Add gzip compression transform and compress command line prog.lloyd2014-11-191-0/+3
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* Convert compression filters to in-place transforms and refactorlloyd2014-11-181-0/+99
to minimize the amount of logic needed in the files specific to each library.