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NIST-Password-Validator

This program takes in 2 files:

  1. An input file that contains a list of passwords that you want to validate.
  2. A commonly used passwords file that contains a list of passwords that are very common that it should not be used

The validation has the following criteria:

  1. Have an 8 character minimum
  2. Have a 64 character maximum
  3. Must be ASCII
  4. Must not be a commonly used password

To Run The Program

  1. Follow the setup instruction to install python and cloning the repo
  2. cd into the root of the program directory cd NIST-Password-Validator
  3. run python password_validator.py [input_file] [commonly_used_password_file] while replacing
  • [input_file] with the path to the file containing a list of passwords you want to check and
  • [commonly_used_password_file] with the path to the file containing a list of password you want to exclude because they are commonly used. If you need one, please use this Common Password List
  1. An example: python password_validator.py input_password.txt commonly_used_password_file.txt
  2. Sample of successful output includes
--- Attempting to read in weak password validation file ---
--- Validating input password ---

Line [1]: 123456789 -> Error: Too Common
Line [8]: dewed -> Error: Too Short
Line [9]: kckwo -> Error: Too Short
Line [10]: 123456789 -> Error: Too Common
Line [11]: 支持多件包裹打包运输‎ -> Error: Invalid Characters
Line [14]: verylongtextblobwillexceed64charactersverylongtextblobwillexceed64charactersverylongtextblobwillexceed64charactersverylongtextblobwillexceed64characters -> Error: Too Long
Line [15]: password -> Error: Too Common
Line [16]: 123123 -> Error: Too Short
Line [17]: 多件 -> Error: Too Short, Invalid Characters


--- Printing summary ---
Number of bad password: 9
Number of good password: 10
Number of password found: 19
  1. Sample of failure output includes
  • When command line is invalid
Please check that your input is in the correct format. 
python password_validator.py input_password.txt commonly_used_password_file.txt
  • When Files does not exist
File does-not-exist.txt is not found.
File does-not-exist2.txt is not found.

To Run The Unit Test

  1. Follow the setup instruction to install python and cloning the repo
  2. cd into the root of the program directory cd NIST-Password-Validator
  3. run python password_validator_test.py
.............
----------------------------------------------------------------------
Ran 13 tests in 0.001s

OK

Setup Instructions

  1. Let install homebrew, a package manager that will help us install python
/usr/bin/ruby -e "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/master/install)"
  1. Install Python through brew
brew install python
  1. Clone the Repo
git clone https://github.com/Mr-Ming/NIST-Password-Validator.git