Lua

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. Lua

local chilkat = require("chilkat")

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

local crypt = chilkat.Crypt2.new()

-- What is a .p7m file?

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

-- Verify and restore the original file:
local success = crypt:verify_p7_m(inFile, outputFile)
if not success then
    print(crypt.last_error_text)
    return
end

print("Success!")