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

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Xojo Plugin 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.

Chilkat Xojo Plugin Download Xojo Plugin for Windows, Linux, Mac OS X, and ARM, ARM64

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

Dim crypt As New Chilkat.Crypt2

// What is a .p7m file?

Dim outputFile As String
outputFile = "/Users/chilkat/testData/pdf/sample.pdf"
Dim inFile As String
inFile = "/Users/chilkat/testData/p7m/sample.pdf.p7m"

// Verify and restore the original file:
Dim success As Boolean
success = crypt.VerifyP7M(inFile,outputFile)
If (success = False) Then
    System.DebugLog(crypt.LastErrorText)
    Return
End If

System.DebugLog("Success!")