A tool for visualizing the convergence of usability and security in text-based passwords

Note: if you are looking for the tool as it appeared in the HCII 2015 proceedings, you will find it here: ..DataVis/tree/HCII-2015

Explore the tool here

The USV (Usability and Security Visualizer) is a data visualization tool originally built to explore password usability and security metrics. The visualization tool integrates various measurements of passwords, enabling exploration of the intersection of their usability and security components.

The tool is based on insight from previously gathered data from usability studies conducted at the United States National Institute of Standards and Technology. It also leverages web technologies to flexibly display data sets computed from sets of passwords.

The USV is intented to visualize multivariate data (rows of data with different properties describing qualities of each row in columns).

In a generic sense, the tool provides a mechanism for visualizing the same groups of metrics for rows of data in 2 different states or phases. The rows are organized symmetrically do display the the The example given is password permutation, or rearranging the passwords so that all characters are grouped by each character type (letters, numbers, symbols). Password permutation is intended to optimize the efficiency for password entry on a mobile device.

You can either use the tool online here or download it for offline use.

In order to use the tool online, you will have to create a dataset (Step B. below).

• A .txt file list of the passwords to be visualized. For example (newline separated):

{x!_ZZX0
n5Yw;_o@
79IrVyE}
,SJ#c15E
.+1F2Hs/
$oX<D$2R
7:OMx9kL
b>ANoN1i
woP9Uo[=
64#$FOpN
uZ-$q8@)
n]P27{D(
|Vf99LVn

• Python 3. Note that the code will not run properly earlier versions (Python 2, etc.).
  • If you don't have Python installed, download it here.
• Chrome browser (updated).
  • Download Chrome here.
• Code/text editor (Sublime 2 works well and is free).
  • Download Sublime 2 here

1. Move your list of passwords (.txt file) to DataVis/dataGen/input/.
2. Open DataVis/dataGen/USG.py in a code/text editor.
3. Scroll to line 63, type in the filename of your list of passwords, and save the file:

################ Change input file here #######################
# Open file with passwords stored
i = open('input/example.txt', 'r')

4. Open the Command Line (PC) or Terminal (Mac).
5. Navigate (using the cd command) to the folder in which USG.py is contained (DataVis/dataGen).
6. Run USG.py using the command Python3 USG.py
7. Enter a filename for the new dataset to be created when the program prompts you:

Enter the name of the output file: 

8. The new dataset should now appear in the DataVis/dataGen/output folder.
9. Place your data in the /data folder for easy access.

1. If you have downloaded the tool, open index.html using a server (localhost is a good option) or go to usnistgov.github.io/DataVis/. If you don't have a server, you can also run the code without such an environment by following these instructions:
2. Close Chrome if it is open (make sure all background operations of chrome have ceased.
3. Open Chrome from the Command Line/Terminal:

Mac 
```
$ open /Applications/Google\ Chrome.app --args -allow-file-access-from-files
```
PC

  - cd to where chrome.exe is located before you run this command. The file path is probably similar to `C:\Program Files (x86)\Google\Chrome\Application\`

```
>> chrome.exe --allow-file-access-from-files
```

3. Open index.html

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