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Get the Certificate with Private Key from a Java KeyStore

See more Java KeyStore (JKS) Examples

Load a Chilkat certificate object from a Java KeyStore. Go

    success := false

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

    // Most of the time a .jks contains one certificate with it's associated private key.
    // (Similar to how a .pfx/.p12 usually contains a particular certificate with private key.)
    // This example demonstrates how to get the certificate with private key such that it can be used
    // by other Chilkat classes wherever a cert w/ private key is needed.
    jks := chilkat.NewJavaKeyStore()
    password := "secret"
    success = jks.LoadFile(password,"qa_data/jks/test_secret.jks")
    if success == false {
        fmt.Println(jks.LastErrorText())
        jks.DisposeJavaKeyStore()
        return
    }

    // Make sure we have a private key.
    if jks.NumPrivateKeys() < 1 {
        fmt.Println("No private key available.")
        jks.DisposeJavaKeyStore()
        return
    }

    // -------------------------------------------------------------------------
    // Get the certificate chain associated with the 1st (and probably only) private key in the JKS.

    chain := chilkat.NewCertChain()
    success = jks.CertChainAt(0,chain)
    if success == false {
        fmt.Println(jks.LastErrorText())
        jks.DisposeJavaKeyStore()
        chain.DisposeCertChain()
        return
    }

    cert := chilkat.NewCert()
    success = chain.CertAt(0,cert)
    if success == false {
        fmt.Println(chain.LastErrorText())
        jks.DisposeJavaKeyStore()
        chain.DisposeCertChain()
        cert.DisposeCert()
        return
    }

    // Verify again that this cert has a private key.
    if cert.HasPrivateKey() != true {
        fmt.Println("Certificate has no associated private key.")
        jks.DisposeJavaKeyStore()
        chain.DisposeCertChain()
        cert.DisposeCert()
        return
    }

    // We now have the cert object with it's associated private key, and it can be used in other Chilkat classes where needed.
    // For example..

    crypt := chilkat.NewCrypt2()
    success = crypt.SetSigningCert(cert)
    if success == false {
        fmt.Println(crypt.LastErrorText())
        jks.DisposeJavaKeyStore()
        chain.DisposeCertChain()
        cert.DisposeCert()
        crypt.DisposeCrypt2()
        return
    }

    // ...
    // ...

    jks.DisposeJavaKeyStore()
    chain.DisposeCertChain()
    cert.DisposeCert()
    crypt.DisposeCrypt2()