Generate Random Passwords using XKPasswd

New-XKPasswd.ps1

<#
.SYNOPSIS
    Use XKPasswd.net to generate random passwords
.DESCRIPTION
    Use XKPasswd.net and the XKCD strong password algorithm to generate
    easy to remember high entropy passwords
.EXAMPLE
    # Generate 4 passwords with 4 words each
    New-XKPasswd -Count 4 -Words 4

    THOSE-however-havana-ROUND
    LISBON-build-CHANCE-doubt
    famous-GONE-EFFORT-PICK
    MORNING-TRAINING-ESCAPE-NICE
.INPUTS
    [int] Count = 1
    [int] Words = 4 
.OUTPUTS
    [String[]]
#>
function New-XKPasswd {
    [CmdletBinding(DefaultParameterSetName='default',
                   SupportsShouldProcess=$true,
                   PositionalBinding=$false,
                   ConfirmImpact='Medium')]
    [Alias()]
    [OutputType([String[]])]
    Param (
        # Number of of passwords to generate
        [Parameter(Mandatory=$false,
                   Position=0,
                   ValueFromPipeline=$true,
                   ValueFromPipelineByPropertyName=$true,
                   ValueFromRemainingArguments=$false, 
                   ParameterSetName='default')]
        [ValidateNotNull()]
        [ValidateNotNullOrEmpty()]
        [ValidateRange(1,10)]
        [int] 
        $Count=1,
        
        # Number of words per password
        [Parameter(Mandatory=$false,
                    Position=0,
                    ValueFromPipeline=$true,
                    ValueFromPipelineByPropertyName=$true,
                    ValueFromRemainingArguments=$false, 
                    ParameterSetName='default')]
        [ValidateNotNull()]
        [ValidateNotNullOrEmpty()]
        [ValidateScript({$true})]
        [ValidateRange(2,10)]
        [int]
        $Words = 4
    )
    
    $requestPayload = @{
        a = "genpw"
        n = $Count
        c = @{
                "num_words" = $Words;
                "word_length_min" = 4;
                "word_length_max" = 8;
                "case_transform" = "RANDOM";
                "separator_character" = "-";
                "padding_digits_before" = 0;
                "padding_digits_after" = 0;
                "padding_type" = "NONE";
                "random_increment" = "AUTO"
            } | ConvertTo-Json
    }

    if ($PSCmdlet.ShouldProcess("https://xkpasswd.net", "Submit request for $Count passwords")) {
        
        $results = Invoke-WebRequest -Uri "https://xkpasswd.net/s/index.cgi" -Method "POST" `
            -ContentType "application/x-www-form-urlencoded; charset=UTF-8" -Body $requestPayload

        $results = $results.Content | ConvertFrom-Json

        $results.passwords    
    }
    
}