Initial data commit

Task/Password-generator/PowerShell/password-generator-1.psh

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+function New-RandomPassword
+{
+  <#
+    .SYNOPSIS
+        Generates one or more passwords.
+    .DESCRIPTION
+        Generates one or more passwords.
+    .PARAMETER Length
+        The password length (default = 8).
+    .PARAMETER Count
+        The number of passwords to generate.
+    .PARAMETER Source
+        An array of strings containing characters from which the password will be generated.  The default is good for most uses.
+    .PARAMETER ExcludeSimilar
+        A switch which indicates that visually similar characters should be ignored.
+    .EXAMPLE
+        New-RandomPassword
+
+        Generates one password of the default length (8 characters).
+    .EXAMPLE
+        New-RandomPassword -Count 4
+
+        Generates four passwords each of the default length (8 characters).
+    .EXAMPLE
+        New-RandomPassword -Length 12 -Source abcdefghijklmnopqrstuvwxyz, ABCDEFGHIJKLMNOPQRSTUVWXYZ, 0123456789
+
+        Generates a password with a length of 12 containing at least one char from each string in Source
+    .EXAMPLE
+        New-RandomPassword -Count 4 -ExcludeSimilar
+
+        Generates four passwords each of the default length (8 characters) while excluding similar characters "Il1O05S2Z".
+  #>
+    [CmdletBinding()]
+    [OutputType([string])]
+    Param
+    (
+        [Parameter(Mandatory=$false)]
+        [ValidateRange(1,[Int]::MaxValue)]
+        [Alias("l")]
+        [int]
+        $Length = 8,
+
+        [Parameter(Mandatory=$false)]
+        [ValidateRange(1,[Int]::MaxValue)]
+        [Alias("n","c")]
+        [int]
+        $Count = 1,
+
+        [Parameter(Mandatory=$false)]
+        [Alias("s")]
+        [string[]]
+        $Source = @("abcdefghijklmnopqrstuvwxyz", "ABCDEFGHIJKLMNOPQRSTUVWXYZ", "0123456789", "!\`"#$%&'()*+,-./:;<=>?@[]^_{|}~"),
+
+        [Parameter(Mandatory=$false)]
+        [Alias("x")]
+        [switch]
+        $ExcludeSimilar
+    )
+
+    Begin
+    {
+        [char[][]] $charArrays = $Source
+        [char[]]   $allChars   = $charArrays | ForEach-Object {$_}
+        [char[]]   $similar    = "Il1O05S2Z".ToCharArray()
+
+        $random = New-Object -TypeName System.Security.Cryptography.RNGCryptoServiceProvider
+
+        function Get-Seed
+        {
+            $bytes = New-Object -TypeName System.Byte[] -Argument 4
+            $random.GetBytes($bytes)
+            [BitConverter]::ToUInt32($bytes, 0)
+        }
+
+        function Add-PasswordCharacter ([char[]]$From)
+        {
+            $key = Get-Seed
+
+            while ($password.ContainsKey($key))
+            {
+                $key = Get-Seed
+            }
+
+            $index = (Get-Seed) % $From.Count
+
+            if ($ExcludeSimilar)
+            {
+                while ($From[$index] -in $similar)
+                {
+                    $index = (Get-Seed) % $From.Count
+                }
+            }
+
+            $password.Add($key, $From[$index])
+        }
+    }
+    Process
+    {
+        for ($i = 1;$i -le $Count; $i++)
+        {
+            [hashtable] $password = @{}
+
+            foreach ($array in $charArrays)
+            {
+                if($password.Count -lt $Length)
+                {
+                    Add-PasswordCharacter -From $array # Append to $password
+                }
+            }
+
+            for ($j = $password.Count; $j -lt $Length; $j++)
+            {
+                Add-PasswordCharacter -From $allChars  # Append to $password
+            }
+
+            ($password.GetEnumerator() | Select-Object -ExpandProperty Value) -join ""
+        }
+    }
+}

Task/Password-generator/PowerShell/password-generator-2.psh

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+New-RandomPassword -Length 12 -Count 4 -ExcludeSimilar

Task/Password-generator/PowerShell/password-generator-3.psh

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+Set-Alias -Name nrp -Value New-RandomPassword -Description "Generates one or more passwords"
+
+nrp -l 12 -n 4 -x