(Classic ASP) Extract a File from a .p7m (PKCS7 Signed-Data)
Classic ASP 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.
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
</head>
<body>
<%
' This example requires the Chilkat API to have been previously unlocked.
' See Global Unlock Sample for sample code.
' For versions of Chilkat < 10.0.0, use CreateObject("Chilkat_9_5_0.Crypt2")
set crypt = Server.CreateObject("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 = 0) Then
Response.Write "<pre>" & Server.HTMLEncode( crypt.LastErrorText) & "</pre>"
Response.End
End If
Response.Write "<pre>" & Server.HTMLEncode( "Success!") & "</pre>"
%>
</body>
</html>
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