https://github.com/antonlydike/passwordgen

Dictionary based password generation for easy memorization
https://github.com/antonlydike/passwordgen

password-generator

Last synced: 23 days ago
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Dictionary based password generation for easy memorization

• Host: GitHub
• URL: https://github.com/antonlydike/passwordgen
• Owner: AntonLydike
• License: mit
• Created: 2018-01-15T19:39:09.000Z (almost 7 years ago)
• Default Branch: master
• Last Pushed: 2018-04-10T21:17:00.000Z (almost 7 years ago)
• Last Synced: 2024-10-30T11:49:32.481Z (2 months ago)
• Topics: password-generator
• Language: C
• Homepage:
• Size: 6.64 MB
• Stars: 0
• Watchers: 2
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: README.md
  • License: LICENSE

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README

        
# PasswordGen

Generate passwords from dictionaries.

The Bash implementation requires bc, The C one needs openssl (`libssl-dev` for example) to compile

## Usage

Flags:

 - `-l|--length ` Number of words

 - `-d|--del|--delimiter ` delimiter

 - `-c|--clip` copy password to clipboard (requires [xclip](https://wiki.ubuntuusers.de/xclip/))

 - `--dictionary ` Only use one dictionary (find ID by passing `--verbose`)

  **WARNING** This could lead to insecure passwords due to a low number of possible words

 - `--dictpath ` Path to another dictionary directory (with list file)

 - `--verbose` See some useful output (dictionary overview, total number of words available, etc...)

 - **Manipulating Dictionaries**

    - `--add-dictionary ` add dictionary at path

    - `--remove-dictionary ` remove dictionary at number `dict#` (can be identified with --verbose flag)

## lists

At the moment, there are two dictionaries in the `/dictionaries` folder

 - german.dic: https://sourceforge.net/projects/germandict/

 - english.dic: https://github.com/dwyl/english-words

## How this program chooses a random word from the Dictionaries

  1. Generate a random integer

    - bash: `od -A n -t u8 -N 8 /dev/urandom | tr -d ' '`, then calculate `rand % totalWordCount` (unsigned 64 bit integer from /dev/urandom)

    - C: Generate a random number between 0 and totalWordCount with `randombytes_uniform(uint64_t totalWordCount)`

  2. find out which dictionary has the word in it

  3. get that word from that dictionary

steps 2 and 3 are different if a specific dictionary is forced.