Unicode C

X509Certificate GetCertHash SHA256

See more Certificates Examples

Shows how to get the SHA256 hash of a certificate. Unicode C

#include <C_CkCertW.h>
#include <C_CkBinDataW.h>

void ChilkatSample(void)
    {
    BOOL success;
    HCkCertW cert;
    HCkBinDataW bdDer;
    const wchar_t *certHash;

    success = FALSE;

    cert = CkCertW_Create();

    // Load a certificate object with a certificate.
    // The certificate object could have come from any source,
    // or perhaps was obtained from another Chilkat function.
    // The source does not matter.  What matters is that we have
    // a cert object loaded with the certificate..
    success = CkCertW_LoadFromFile(cert,L"qa_data/certs/cert_test123.cer");
    if (success != TRUE) {
        wprintf(L"%s\n",CkCertW_lastErrorText(cert));
        CkCertW_Dispose(cert);
        return;
    }

    // Get the binary DER of the certificae, and compute the SHA256 hash:
    bdDer = CkBinDataW_Create();
    CkCertW_ExportCertDerBd(cert,bdDer);

    // Get the base64 representation of the SHA256 hash.
    certHash = CkBinDataW_getHash(bdDer,L"sha256",L"base64");

    wprintf(L"Certificate hash in base64 = %s\n",certHash);


    CkCertW_Dispose(cert);
    CkBinDataW_Dispose(bdDer);

    }