C++

X509Certificate GetCertHash SHA256

See more Certificates Examples

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

#include <CkCert.h>
#include <CkBinData.h>

void ChilkatSample(void)
    {
    bool success = false;

    CkCert cert;

    // 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 = cert.LoadFromFile("qa_data/certs/cert_test123.cer");
    if (success != true) {
        std::cout << cert.lastErrorText() << "\r\n";
        return;
    }

    // Get the binary DER of the certificae, and compute the SHA256 hash:
    CkBinData bdDer;
    cert.ExportCertDerBd(bdDer);

    // Get the base64 representation of the SHA256 hash.
    const char *certHash = bdDer.getHash("sha256","base64");

    std::cout << "Certificate hash in base64 = " << certHash << "\r\n";
    }