C

Example: Crypt2.ClearEncryptCerts method

Demonstrates how to call the ClearEncryptCerts method. C

#include <C_CkCrypt2.h>
#include <C_CkCert.h>
#include <C_CkBinData.h>

void ChilkatSample(void)
    {
    BOOL success;
    HCkCrypt2 crypt;
    HCkCert cert1;
    HCkCert cert2;
    HCkCert cert3;
    HCkBinData bd;
    HCkCert cert4;
    HCkCert cert5;

    success = FALSE;

    crypt = CkCrypt2_Create();

    //  Tell the crypt object to use 3 certificates.
    //  Do this by calling AddEncryptCert for each certificate.

    cert1 = CkCert_Create();
    //  ...
    //  Load the cert from a source such as a .pfx/.p12 file, smart card, USB token, Apple keychain, Windows certificate store, etc.
    //  ...
    CkCrypt2_AddEncryptCert(crypt,cert1);

    cert2 = CkCert_Create();
    //  ...
    CkCrypt2_AddEncryptCert(crypt,cert2);

    cert3 = CkCert_Create();
    //  ...
    CkCrypt2_AddEncryptCert(crypt,cert3);

    //  Params for public-key encryption to create PKCS7 enveloped-data
    CkCrypt2_putCryptAlgorithm(crypt,"pki");
    CkCrypt2_putPkcs7CryptAlg(crypt,"aes");
    CkCrypt2_putKeyLength(crypt,256);
    CkCrypt2_putOaepHash(crypt,"sha256");
    CkCrypt2_putOaepPadding(crypt,TRUE);

    bd = CkBinData_Create();
    //  ...
    success = CkCrypt2_EncryptBd(crypt,bd);

    //  Let's say we now want to encrypt something else with different certs..
    //  First clear the encryption certs.
    CkCrypt2_ClearEncryptCerts(crypt);

    cert4 = CkCert_Create();
    //  ...
    CkCrypt2_AddEncryptCert(crypt,cert4);

    cert5 = CkCert_Create();
    //  ...
    CkCrypt2_AddEncryptCert(crypt,cert5);

    //  ...
    //  ...

    //  Encrypt using cert4 and cert5.
    success = CkCrypt2_EncryptBd(crypt,bd);


    CkCrypt2_Dispose(crypt);
    CkCert_Dispose(cert1);
    CkCert_Dispose(cert2);
    CkCert_Dispose(cert3);
    CkBinData_Dispose(bd);
    CkCert_Dispose(cert4);
    CkCert_Dispose(cert5);

    }