First version of Threefish512-CTR with BLAKE3-MAC & a custom shamirs secret sharing port alongside C bridges with test vectors & Compilation instructions

crypto/shamirs_secret_sharing/README.md

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+## To compile the python encryption layer
+### linux:
+pre:
+`sudo apt update && sudo apt install python3 python3-pip -y`
+
+please create a venv, install numpy & nuitka inside using the pip binary it provide; `python3 -m venv env && ./env/bin/pip install nuitka numpy`
+
+compile cmd: `./env/bin/python3 -m nuitka shamirs_secret_sharing.py --module --output-dir=dll_dist --mingw64 --include-package=numpy`
+### windows:
+can globally install nuitka & numpy using `python -m pip install numpy nuitka`
+
+compile cmd: `python -m nuitka shamirs_secret_sharing.py --module --output-dir=dll_dist --mingw64 --include-package=numpy`
+
+
+## To compile the bridge
+### windows:
+`$ gcc -shared py_bridge.c -o shamir_bridge.dll -Iinclude -Llibs -lpython312`
+
+### linux:
+`$ gcc -shared -fPIC py_bridge-lin.c -o shamir_bridge.so $(python3.11-config --includes --ldflags)`