A Function used to make a password, Can set length and Complexity of password. #Security #Utility #Public #Function

get-password.ps1

# get-password.ps1
<#
Description: A Function used to make a password, Can set length and Complexity of password.
Written: Ed Walsh
PowerShell.Core tested: Not Tested
Version: 1.0.0
Create Date: 12/15/2021
Revised Date: 12/15/2021
#>


function Get-Password($length, $complexity) 
{
[CmdletBinding()]

$ValidData = $true  # the tests will set this to false if we find incorrect parameter.
#Check if parameter is an Integer    
 if( $Length -isnot [int])
 {
 Write-Host "Password Length must be a whole number of 8 or higher."
     $ValidData = $false
     }
 #Check if parameter is 8 or higher
 Elseif($length -le 7)
 {
     Write-Host "Password Length needs to be a value of 8 or more. "
     $ValidData = $false
 }

 #Check if parameter is an Integer    
 if( $complexity -isnot [int])
 {
 Write-Host "Complexity value must be a whole number between 1 and 3.
1 = Upper Case + Lower Case Alpha Only
2 = Upper Case + Lower Case Alpha + Number
3 = Upper Case + Lower Case Alpha + Number + Special Characters
  "
$ValidData = $false
     }
#Check if parameter is between 1..3
 elseif( $complexity -cnotin (1..3))
 {
 Write-Host "Complexity value must be a whole number between 1 and 3.
1 = Upper Case + Lower Case Alpha Only
2 = Upper Case + Lower Case Alpha + Number
3 = Upper Case + Lower Case Alpha + Number + Special Characters
  "
$ValidData = $false
     }


#if it passes the parameter checks run the script
if ($ValidData) 
 {
$Passwrd = @()
$Passwrd += (48..57) | Get-Random -Count 1 
$Passwrd += (65..90) | Get-Random -Count 1
$passwrdf = (48..57) + (65..90)
if ($complexity -in (2..3)) {
$Passwrd += (97..122) | Get-Random -Count 1
$passwrdf = (48..57) + (65..90) + (97..122)
}
if ($complexity -eq 3) {
$Passwrd += (33..33) + (35..37) | Get-Random -Count 1
$passwrdf = (33..33) + (35..37) + (48..57) + (65..90) + (97..122)
}

$Passwrd += ( $passwrdf| Get-Random -Count ($Length - ($complexity + 1 )))
$Password = -join ($Passwrd | Get-Random -Count ([int]::MaxValue) | ForEach-Object { [char]$_ } )

return [String]$Password 
 } 

 else 
 #if parameter failed checks then let user know to rerun the script.
 {
     Write-Host "Please rerun this function with correct parameter."                 
     return                  
 }  
    }

get-password 10 3