lua-sodium - Lua bindings for libsodium

Warning

The Lua bindings for libsodium provided here are in a very early stage of development, thus do not use them in a production environment!

Build Dependencies

Besides having a working compiler toolchain available you will need:

• cmake

• libsodium

Installing

Install from git

Clone the git repository

git clone git://github.com/morfoh/lua-sodium.git

cd lua-sodium

Prepare a dedicated build directory

mkdir build

cd build

Generate Makefiles and related build infrastructure

cmake ../

Alternatively you can specify the path where to install the module

cmake ../ -DINSTALL_CMOD=/usr/local/lib/lua/5.1

Compile the module

make

Install the module

sudo make install

Install using lua-rocks

curl -O "https://github.com/morfoh/lua-sodium/raw/master/lua-sodium-scm-0.rockspec"

luarocks install lua-sodium-scm-0.rockspec

Development

Re-generating the bindings

By default CMake will use the pre-generated bindings that are include in the project.

To be able to re-generate the bindings, you will need to install LuaNativeObjects and set the CMake variable USE_PRE_GENERATED_BINDINGS to FALSE.

cmake ../ -DUSE_PRE_GENERATED_BINDINGS=FALSE

Mandantory for re-generating Lua bindings from *.nobj.lua files:

• LuaNativeObjects, this is the bindings generator used to convert the *.nobj.lua files into a native Lua module.

Optional for re-generating documentation

• luadoc

To not re-generate documentation by luadocs when re-generating the bindings you have to to set the CMake variable GENERATE_LUADOCS to FALSE.

cmake ../ -DUSE_PRE_GENERATED_BINDINGS=FALSE -DGENERATE_LUADOCS=FALSE

Implementation status

Scalar multiplication

Important

Currently only curve25519 is supported as it is the default used in libsodium!

crypto_scalarmult_curve25519

C Function	Status
crypto_scalarmult_bytes	DONE
crypto_scalarmult_scalarbytes	DONE
crypto_scalarmult_primitive	DONE
crypto_scalarmult_base	TODO
crypto_scalarmult	TODO

Public-key authenticated encryption: crypto_box

Important

Currently only curve25519xsalsa20poly1305 is supported as it is the default used in libsodium!

crypto_box_curve25519xsalsa20poly1305

C Function	Status
crypto_box_primitive	DONE
crypto_box_publickeybytes	DONE
crypto_box_secretkeybytes	DONE
crypto_box_beforenmbytes	DONE
crypto_box_noncebytes	DONE
crypto_box_zerobytes	DONE
crypto_box_boxzerobytes	DONE
crypto_box_macbytes	DONE
crypto_box_keypair	TODO
crypto_box_beforenm	TODO
crypto_box_afternm	TODO
crypto_box_open_afternm	TODO
crypto_box	TODO
crypto_box_open	TODO