internal/functions/New-DracoonRandomPassword.ps1
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function New-DracoonRandomPassword { <# .SYNOPSIS Creates a new random password. .DESCRIPTION Creates a new random password with the following rules: -12 characters long -at least one lower case character -at least one upper case character -at least one number -at least one special character .EXAMPLE $newPassword=New-DracoonRandomPassword Creates a new password .NOTES General notes #> [Diagnostics.CodeAnalysis.SuppressMessageAttribute('PSUseShouldProcessForStateChangingFunctions', '')] param() process { [int]$PasswordLength = 12 # Specifies an array of strings containing charactergroups from which the password will be generated. # At least one char from each group (string) will be used. [String[]]$InputStrings = @('abcdefghijkmnpqrstuvwxyz', 'ABCEFGHJKLMNPQRSTUVWXYZ', '23456789', '!"#%&') $Password = @{ } # Create char arrays containing groups of possible chars [char[][]]$CharGroups = $InputStrings # Create char array containing all chars $AllChars = $CharGroups | ForEach-Object { [Char[]]$_ } # Randomize one char from each group Foreach ($Group in $CharGroups) { if ($Password.Count -lt $PasswordLength) { $Index = Get-DracoonSeed While ($Password.ContainsKey($Index)) { $Index = Get-DracoonSeed } $Password.Add($Index, $Group[((Get-DracoonSeed) % $Group.Count)]) } } # Fill out with chars from $AllChars for ($i = $Password.Count; $i -lt $PasswordLength; $i++) { $Index = Get-DracoonSeed While ($Password.ContainsKey($Index)) { $Index = GetSeed } $Password.Add($Index, $AllChars[((Get-DracoonSeed) % $AllChars.Count)]) } return $( -join ($Password.GetEnumerator() | Sort-Object -Property Name | Select-Object -ExpandProperty Value)) } } function Get-DracoonSeed { # Generate a seed for randomization $RandomBytes = New-Object -TypeName 'System.Byte[]' 4 $Random = New-Object -TypeName 'System.Security.Cryptography.RNGCryptoServiceProvider' $Random.GetBytes($RandomBytes) return [BitConverter]::ToUInt32($RandomBytes, 0) } |