C++

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. C++

#include <CkCrypt2.h>

void ChilkatSample(void)
    {
    bool success = false;

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

    CkCrypt2 crypt;

    // What is a .p7m file?

    const char *outputFile = "/Users/chilkat/testData/pdf/sample.pdf";
    const char *inFile = "/Users/chilkat/testData/p7m/sample.pdf.p7m";

    // Verify and restore the original file:
    success = crypt.VerifyP7M(inFile,outputFile);
    if (success == false) {
        std::cout << crypt.lastErrorText() << "\r\n";
        return;
    }

    std::cout << "Success!" << "\r\n";
    }