Kaden

0.1.3-beta

Private/Get-KadenFileDigest.ps1

function Get-KadenFileDigest {
    <#
    .SYNOPSIS
        Return the lowercase SHA-256 digest of a file.
    #>
    [CmdletBinding()]
    param(
        [Parameter(Mandatory = $true)]
        [string]$LiteralPath
    )

    $sha = [System.Security.Cryptography.SHA256]::Create()
    try {
        $stream = [System.IO.File]::OpenRead($LiteralPath)
        try {
            $hash = $sha.ComputeHash($stream)
            return ([System.BitConverter]::ToString($hash) -replace '-', '').ToLowerInvariant()
        }
        finally {
            $stream.Dispose()
        }
    }
    finally {
        $sha.Dispose()
    }
}