zxcvbn-cpp

This is a C++ port of zxcvbn, an advanced password strength estimation library. For more details on how zxcvbn works and its advantages, check out the blog post.

This port is a direct translation of the original CoffeeScript source. This allows this port to easily stay in sync with the original source. Additionally, this port uses the same exact test scripts from the original with the help of emscripten.

How to build for your C/C++ project

Adapt these instructions to your build environment.

First generate adjacency graphs and frequency lists:

$ python ./data-scripts/build_frequency_lists.py ./data ./native-src/zxcvbn/_frequency_lists.hpp
$ python ./data-scripts/build_frequency_lists.py ./data ./native-src/zxcvbn/_frequency_lists.cpp
$ python ./data-scripts/build_keyboard_adjacency_graphs.py ./native-src/zxcvbn/adjacency_graphs.hpp
$ python ./data-scripts/build_keyboard_adjacency_graphs.py ./native-src/zxcvbn/adjacency_graphs.cpp

Add /absolute_path/to/zxcvbn-repo/native-src to your include path, then build all the .cpp files in /absolute_path/to/zxcvbn-repo/native-src/zxcvbn. Make sure you use the -std=c++14 compiler flag.

Development

Bug reports and pull requests welcome!

Please note zxcvbn-cpp is written using modern C++14 techniques, no passing around stray pointers!