65 lines
2.8 KiB
Markdown
65 lines
2.8 KiB
Markdown
# libtommath
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This is the git repository for [LibTomMath](http://www.libtom.net/LibTomMath/), a free open source portable number theoretic multiple-precision integer (MPI) library written entirely in C.
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## Build Status
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### Travis CI
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master: [](https://github.com/libtom/libtommath/actions/workflows/main.yml?query=branch%3Amaster+++)
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develop: [](https://github.com/libtom/libtommath/actions/workflows/main.yml?query=branch%3Adevelop+++)
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### AppVeyor
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master: [](https://ci.appveyor.com/project/libtom/libtommath/branch/master)
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develop: [](https://ci.appveyor.com/project/libtom/libtommath/branch/develop)
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### ABI Laboratory
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API/ABI changes: [check here](https://abi-laboratory.pro/tracker/timeline/libtommath/)
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### Pre-built packages
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We sometimes upload `deb` packages of the latest state from the develop branch to [packagecloud.io](https://packagecloud.io/libtom/packages).
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Use those packages with caution and at your own discretion.
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## Summary
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The `develop` branch contains the in-development version. Stable releases are tagged.
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Documentation is built from the LaTeX file `bn.tex`. There is also limited documentation in `tommath.h`.
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There is also a document, `tommath.pdf`, which describes the goals of the project and many of the algorithms used.
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The project can be build by using `make`. Along with the usual `make`, `make clean` and `make install`,
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there are several other build targets, see the makefile for details.
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There are also makefiles for certain specific platforms.
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## Testing
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Tests are located in `demo/` and can be built in two flavors.
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* `make test` creates a stand-alone test binary that executes several test routines.
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* `make mtest_opponent` creates a test binary that is intended to be run against `mtest`.
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`mtest` can be built with `make mtest` and test execution is done like `./mtest/mtest | ./mtest_opponent`.
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`mtest` is creating test vectors using an alternative MPI library and `test` is consuming these vectors to verify correct behavior of ltm
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## Building and Installing
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Building is straightforward for GNU Linux only, the section "Building LibTomMath" in the documentation in `doc/bn.pdf` has the details.
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### CMake support
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The project provides support for the CMake build system.
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```
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git clone https://github.com/libtom/libtommath.git
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mkdir -p libtommath/build
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cd libtommath/build
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cmake ..
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make -j$(nproc)
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```
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A shared library build can be done by setting `-DBUILD_SHARED_LIBS=On` when invoking the `cmake` command.
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