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Implementation of aes in nearly pure lua (bitlib is required)
License: Other
This project forked from bighil/aeslua
Implementation of aes in nearly pure lua (bitlib is required)
License: Other
AES for lua ----------- This files contain an implementation of AES in lua. The only additional library needed is bitlib. Usage ----- aeslua.lua contains a simple API to encrypt and decrypt lua strings. To encrypt the string "geheim" with the password "password" use: require("aeslua"); cipher = aeslua.encrypt("password", "secret"); and to decrypt the string again: plain = aeslua.decrypt("password", cipher); You can also specify the key size and the encryption mode. For further examples look into the file src/testcryptotest.lua. To use AES directly, have a look at aes.lua and at the example usage in testaes.lua. Installation ------------ Edit the LIBDIR variable in the Makefile and run make install Speed ----- The implementation is rather optimized (it uses tables for most AES operations) but still cannot compete with AES written in other languages. Typical AES implementations reach several 100 MBit per second, this implementation only reaches 400 kBit per second. The most plausible reason is the heavy reliance of AES on bit operations. As lua numbers are doubles bitlib needs to convert them to long values for each bit operation. So if you need to encrypt much data with AES, do yourself a favor and use a C-Implementation. But if you only need to encrypt short strings and you have no control over the lua environment (like in games :-)) use this library. Matthias Hilbig <[email protected]>
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