PowerShell

Extract a File from a .p7m (PKCS7 Signed-Data)

See more Encryption Examples

_LANGUAGE_ example to extract the original file from a .p7m (Signed-Data PKCS7 Format) The .p7m contains the signed contents of the original file. It can be verified and restored by calling VerifyP7M. PowerShell

Add-Type -Path "C:\chilkat\ChilkatDotNet47-x64\ChilkatDotNet47.dll"

$success = $false

# This example requires the Chilkat API to have been previously unlocked.
# See Global Unlock Sample for sample code.

$crypt = New-Object Chilkat.Crypt2

# What is a .p7m file?

$outputFile = "/Users/chilkat/testData/pdf/sample.pdf"
$inFile = "/Users/chilkat/testData/p7m/sample.pdf.p7m"

# Verify and restore the original file:
$success = $crypt.VerifyP7M($inFile,$outputFile)
if ($success -eq $false) {
    $($crypt.LastErrorText)
    exit
}

$("Success!")