Ruby gem for generating passwords quickly and easily. Although it is suitable for use within Rails it has no Rails dependencies and can be used in non-Rails applications as well.

It can generate passwords including lower case, upper case, digits and symbols and also pronounceable passwords.

Since 1.0.0 you can also analyze the quality of a password, both as a numeric score between 0 and 100 and as a complexity ranking.

gem install passgen

The usage could not be easier. Just require and call the generate method:

>> require 'rubygems'
>> require 'passgen'
>> Passgen::generate
=> "zLWCeS3xC9"

You check the strength of a password by calling analyze:

>> info = Passgen::analyze("zLWCeS3xC9")
=> #<Passgen::StrengthAnalyzer:0xb728654c @complexity="Strong", @score=78, @errors=[], @password="zLWCeS3xC9">
>> info.score
=> 78
>> info.complexity
=> "Strong"

>> Passgen::generate
=> "zLWCeS3xC9"
>> Passgen::generate(:length => 20)
=> "6lCcHvkuEW6OuzAtkoAs"
>> Passgen::generate(:symbols => true)
=> "gr)$6bIym1"
>> Passgen::generate(:lowercase => :only)
=> "ysbwuxbcea"
>> Passgen::generate(:number => 3)
=> ["REdOigTkdI", "PQu8DsV9WZ", "qptKLbw8YQ"]
>> Passgen::generate(:seed => 5)
=> "JoV9M2qjiK"
>> Passgen::generate(:seed => 5) # Will generate same password again
=> "JoV9M2qjiK"
>> Passgen::generate(:pronounceable => true) # Pronounceable, mixed case password
=> "ActeodEuRT"
>> Passgen::generate(:pronounceable => true, :lowercase => :only) # Pronounceable lower case
=> "terysolang"
>> Passgen::generate(:pronounceable => true, :uppercase => :only) # Pronounceable upper case
=> "ACTOPECHEI"
>> Passgen::generate(:pronounceable => true, :digits_before => 3) # Pad with digits in front
=> "886uRApLIN"
>> Passgen::generate(:pronounceable => true, :digits_before => 3) # Pad with digits at the end
=> "uRAPLIN886"

• true - Use lowercase letters in the generated password.

• false - Do not use lowercase letters in the generated password.

• :only - Only use lowercase letters in the generated password.

• true - Use uppercase letters in the generated password.

• false - Do not use uppercase letters in the generated password.

• :only - Only use uppercase letters in the generated password.

• true - Use digits in the generated password.

• false - Do not use digits in the generated password.

• :only - Only use digits in the generated password.

• true - Use symbols in the generated password.

• false - Do not use symbols in the generated password.

• :only - Only use symbols in the generated password.

• :list - A string with the symbols to use. Not implemented yet.

Number of passwords to generate. If >1 the result is an Array.

The number of characters in the generated passwords. A range results in passwords lengths within the given range.

Set the srand seed to the given integer prior to generating the passwords.

• true - Generate pronounceable passwords

• false - No effect

• Pads the pronounceable password with number digits at the end. Defaults to 2 if true is passed.

• Pads the pronounceable password with number digits in front. Defaults to 2 if true is passed.

:lowercase => true

:uppercase => true

:digits => true

:symbols => false

:pronounceable => Not implemented yet.

:number => 1

:length => 10

:seed => nil

:pronounceable => false

:digits_after => 2 (Only in combination with pronounceable)

:digits_before => 2 (Only in combination with pronounceable)

Copyright © 2009-2010 Erik Lindblad

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