Create Detached Signature using PFX

Creates and verifies a detached signature.

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MS Windows Visual C/C++ Libraries

Linux/CentOS C/C++ Libraries

MAC OS X C/C++ Libraries

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HP-UX C++ Libraries

BlackBerry QNX C++ Libraries

#include <CkCrypt2.h>
#include <CkCertStore.h>
#include <CkCert.h>

void ChilkatSample(void)
    {
    CkCrypt2 crypt;

    //  Any string argument automatically begins the 30-day trial.
    bool success;
    success = crypt.UnlockComponent("30-day trial");
    if (success != true) {
        printf("Crypt component unlock failed\n");
        return;
    }

    //  Create an instance of a certificate store object, load a PFX file,
    //  locate the certificate we need, and use it for signing.
    //  (a PFX file may contain more than one certificate.)
    CkCertStore certStore;
    //  The 1st argument is the filename, the 2nd arg is the
    //  PFX file's password:
    success = certStore.LoadPfxFile("chilkat.pfx","test");
    if (success != true) {
        printf("%s\n",certStore.lastErrorText());
        return;
    }

    CkCert *cert = 0;
    cert = certStore.FindCertBySubject("Chilkat Software, Inc.");
    if (cert == 0 ) {
        printf("%s\n",certStore.lastErrorText());
        return;
    }

    //  Tell the crypt component to use this cert.
    crypt.SetSigningCert(*cert);

    //  We can sign any type of file, creating a .sig as output:
    success = crypt.CreateDetachedSignature("test.pdf","test.sig");
    if (success == true) {
        printf("Success!\n");
    }

    printf("%s\n",crypt.lastErrorText());

    //  Verify and restore the original file:
    crypt.SetVerifyCert(*cert);

    success = crypt.VerifyDetachedSignature("test.pdf","test.sig");
    if (success == true) {
        printf("Success!\n");
    }

    printf("%s\n",crypt.lastErrorText());
    }