POWERSHELL ⇢ generate random password ⇢ generate salt ⇢ Encrypt password with salt

passwordsha512.ps1

    #--------------------------------------------------------------------
    # purpose : 1. generate random password
    #           2. generate salt
    #           3. Encrypt password with salt
    #--------------------------------------------------------------------


    #--------------------------------------------------------------------
    # purpose : generate a ComputeHash
    # params : anystring
    # http://jongurgul.com/blog/get-stringhash-get-filehash/
    # https://gallery.technet.microsoft.com/scriptcenter/Get-StringHash-aa843f71
    #--------------------------------------------------------------------
        Function fncGetSha512([String] $String, $HashName = "SHA512")
        {
            $StringBuilder = New-Object System.Text.StringBuilder
            [System.Security.Cryptography.HashAlgorithm]::Create($HashName).ComputeHash([System.Text.Encoding]::UTF8.GetBytes($String))|%{
                [Void]$StringBuilder.Append($_.ToString("x2"))
            }
            $StringBuilder.ToString()
        }


    #--------------------------------------------------------------------
    # purpose : return alphanumeric string
    #--------------------------------------------------------------------
	    Function Get-RandomAlphanumericString {
		    [CmdletBinding()]
		    Param ([int] $length = 8)
		    Begin{
		    }
		    Process{
			    Write-Output ( -join ((0x30..0x39) + ( 0x41..0x5A) + ( 0x61..0x7A) | Get-Random -Count $length  | % {[char]$_}) )
		    }
	    }




    cls
    #--------------------------------------------------------------------
    # For Powershell : just clic YES to ALL when prompted.
    #--------------------------------------------------------------------
    # Disallow script restrictions  policies
    #--------------------------------------------------------------------
         #Set-Executionpolicy RemoteSigned
         #Set-ExecutionPolicy -Scope "CurrentUser" -ExecutionPolicy "Unrestricted"



    #--------------------------------------------------------------------
    # Initialize Password Module
        Add-Type -AssemblyName System.Web #System.Web.Security.Membership.GeneratePassword()



    #--------------------------------------------------------------------
    # generate random password
        $Password = (Get-RandomAlphanumericString -length 11)

    # generate salt
        $salt = [System.Web.Security.Membership]::GeneratePassword(64,16)

    # Encrypt password with salt
        $StringToProcess = $Password + $salt
        $PwdSha = fncGetSha512 ($StringToProcess)


    #--------------------------------------------------------------------
        Write-Output "Password : $Password`n"
        Write-Output "Salt : $salt`n"
        Write-Output "PwdSha : $PwdSha`n"