# &title;

&name;

§ion;

&name;

&purpose;

    			&name;
    			-c
    				string
    			-e
    				algorithm
    			-i
    				iterations
    			-l
    				length
    			-M
    				maximum length
    			-m
    				minimum length
    			-n
    				count
    			-p
    				password
    			-S
    			-s
    				salt

    			&name;
    			-E
    			-c
    				string
    			-e
    				algorithm
    			-i
    				iterations
    			-l
    				length
    			-M
    				maximum length
    			-m
    				minimum length
    			-n
    				count
    			-S
    			-s
    				salt

## Description

`&name;` is a program that generates pseudo-random passwords of a desired length and, if so desired, along with their corresponding hashes for a given encryption algorithm.

## Options

The following options are available:

`-E`

- In this operation mode, `&name;` enumerates through all possible values for a password, given the list of characters allowed and the length specified.

`-c `string``

- Sets the string of characters allowed within passwords, when generating them randomly.

`-e`

- Apply a specific hashing algorithm to the password generated. The list of passwords currently supported is:

  - base64 (always supported)

  - blowfish (Blowfish)

  - des (single DES)

  - md5 (MD5, always supported)

  - sha1 (SHA-1)

  - sha256 (SHA-256)

  - shmd5 (shadow MD5)

  - none (always supported)

  For the algorithms not explicitly mentioned as always supported, their availability depends on the implementation of the

  crypt

  3 library on the system where `&name;` was compiled.

`-i`

- Force a number of iterations to be performed when hashing passwords, for algorithms effectively supporting it. It otherwise defaults to a random value, in a range considered reasonable for the hashing algorithm selected.

`-l`

- Force the passwords generated to be of a fixed length.

`-M`

- Maximum length for the passwords generated.

`-m`

- Minimum length for the passwords generated.

`-n`

- Total number of passwords to generate. When not set, it defaults to only one, except in enumeration mode where it processes the complete range of possibilities until exhaustion.

`-p`

- Force a given value for the password generated. This is useful when generating hashes for pre-determined passwords.

`-S`

- Do not seed the PRNG (pseudo-random number generator) ourselves. With this option set, the entropy pool is often not initialized, and the passwords generated predictable as a result.

  Use this option carefully, when you know that either the system does provide better entropy than `&name;`, or that it hurts performance in a situation where entropy is not required.

`-s`

- Force a given value when salting the resulting password hash. This is only useful when selecting a hashing algorithm that effectively uses salt.

## Bugs

Issues can be listed and reported at .

## See also

login

1 ,

passwd

1