Cisco Password Encryptor/Decryptor
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README.md

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C7Decrypt

Build Status Dependency Status Code Climate Coverage Status

A Ruby-based implementation of a Cisco Type-7 Password Encryptor/Decryptor

Key Benefits

  • Written in Ruby - First and only Cisco Type-7 implementation in Ruby that I know of.
  • Minimal/No Dependancies - Uses native Ruby to do it's work, no heavy dependancies.
  • Not Just a Script - Implementation is portable for use in another project or for automation of tasks.
  • Simple - It is a small project so the interfaces are simple and easy to use.
  • Encrypt & Decrypt - Supports both encryption (with seed control) and decryption operations.

Setup

To install, type

gem install c7decrypt

To install w/ "HighSecurity", type

gem cert --add <(curl -Ls https://raw.github.com/claudijd/c7decrypt/master/certs/claudijd.pem)
gem install c7decrypt -P HighSecurity

Example Command-Line Usage

Run c7decrypt -h to get this

Usage: c7decrypt [option] [hash/file]
    -s, --string [HASH]              A single encrypted hash string
    -f, --file [FILE]                A file containing multiple hashes
    -h, --help                       Show this message

Example: c7decrypt -s 04480E051A33490E
Example: c7decrypt -f config.txt

Example Library Usage(s)

To use, just require

require 'c7decrypt'

Decrypt Cisco Type-7 Password

>> C7Decrypt::Type7.decrypt("060506324F41")
=> "cisco"

Encrypt Cisco Type-7 Password

>> C7Decrypt::Type7.encrypt("cisco")
=> "02050D480809"

Encrypt Cisco Type-5 Password

>> C7Decrypt::Type5.encrypt("cisco")
=> "$1$CQk2$d62sxZKKAp7PHXWq4mOPF."

Rubies Supported

This project is integrated with travis-ci and is regularly tested to work with the following rubies:

To checkout the current build status for these rubies, click here.

Contributing

If you are interested in contributing to this project, please see CONTRIBUTING.md

Credits

Sources of Inspiration for C7Decrypt

  • Daren Matthew - For his blog post on the subject aggregating tools and sources that perform the decryption/decoding logic.
  • m00nie - For the blog post on the subject, the source code of type7tool.pl and it's encryption techniques.
  • Roger Nesbitt (mogest) - For the unix-crypt Ruby library that demonstrates Unix MD5 hashing schemes.

Application(s) that use C7Decrypt

  • Marcus J Carey - For his web application implementation of this on the ThreatAgent website. Check it out and start decrypting Cisco type-7 passwords right now.