wei192026/mascara-data

MASCARA Data

Pre-trained probability tables used in the MASCARA passphrase guessability experiment.

Contents

mascara-data.zip extracts to:

File	Size	Description
biprob.pkl	236M	Bigram probability table trained on Wikipedia-5 corpus. Format: "word1 word2" → float. 7,584,975 pairs.
bigram.pickle	89M	Raw bigram count table. Format: word → defaultdict(word → count). 496,161 keys.
unigram-5p.pkl	6.5M	Unigram probability table (requires NLTK).

Usage

# Download
hf download wei192026/mascara-data mascara-data.zip \
    --repo-type dataset \
    --local-dir data/

# Extract
cd data/ && unzip mascara-data.zip
# Results in: biprob.pkl, bigram.pickle, unigram-5p.pkl
These files are used by src/attack_models.py as the Wiki-5 bigram attacker (Model 6 in the min-auto framework).

Source

Data originates from the MASCARA paper:

@inproceedings{mukherjee-2023-memorable-passphrase, author = {Avirup Mukherjee and Kousshik Murali and Shivam Kumar Jha and Niloy Ganguly and Rahul Chatterjee and Mainack Mondal}, title = {{MASCARA: Systematically Generating Memorable And Secure Passphrases}}, booktitle = {ACM ASIACCS 2023}, year = {2023} }

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