internal/Convert-ByteToHexString.ps1

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function Convert-ByteToHexString {
<#
 .SYNOPSIS
 Converts byte object into hex string
  
 .DESCRIPTION
 Converts byte object ([byte[]]@(1,100,23,54)) into the hex string (e.g. '0x01641736')
 Used when working with SMO logins and their byte parameters: sids and hashed passwords
   
 .PARAMETER InputObject
 Input byte[] object (e.g. [byte[]]@(18,52))
  
 .NOTES
 Tags: Login, Internal
 Author: Kirill Kravtsov (@nvarscar)
 dbatools PowerShell module (https://dbatools.io, clemaire@gmail.com)
 Copyright (C) 2016 Chrissy LeMaire
  
 This program is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version.
  
 This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.
  
 You should have received a copy of the GNU General Public License along with this program. If not, see <http://www.gnu.org/licenses/>.
 
 .EXAMPLE
 Convert-ByteToHexString ([byte[]]@(1,100,23,54))
  
 Returns hex string '0x01641736'
  
 .EXAMPLE
 Convert-ByteToHexString 18,52
  
 Returns hex string '0x1234'
#>

    Param ([byte[]]$InputObject)
    $outString = "0x"; $InputObject | ForEach-Object { $outString += ("{0:X}" -f $_).PadLeft(2, "0") }
    Return $outString
}