(C) Load Java KeyStore and Access Contents

Loads a Java keystore file and iterates over the contents. A Java keystore (.jks) file can contain one or more trusted root certificate entries and/or one or more private key entries. Each private key entry includes an associated certificate chain.

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#include <C_CkJavaKeyStore.h>
#include <C_CkCert.h>
#include <C_CkPrivateKey.h>
#include <C_CkCertChain.h>

void ChilkatSample(void)
    {
    HCkJavaKeyStore jks;
    BOOL success;
    int numTrustedCerts;
    int numPrivateKeys;
    HCkCert cert;
    const char *alias;
    int i;
    HCkPrivateKey privKey;
    HCkCertChain certChain;

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

    jks = CkJavaKeyStore_Create();

    // Load the Java keystore from a file.  The JKS file password is used
    // to verify the keyed digest that is found at the very end of the keystore.
    // It verifies there has been no tampering with the file.
    success = CkJavaKeyStore_LoadFile(jks,"jksFilePassword","/someDir/keyStore.jks");
    if (success != TRUE) {
        printf("%s\n",CkJavaKeyStore_lastErrorText(jks));
        CkJavaKeyStore_Dispose(jks);
        return;
    }

    // Find out how many of each type of entry:
    numTrustedCerts = CkJavaKeyStore_getNumTrustedCerts(jks);
    numPrivateKeys = CkJavaKeyStore_getNumPrivateKeys(jks);

    // For each trusted certificate, access it by getting
    // it as a cert object.  Also get the alias associated with the certificate.
    printf("Trusted Certs:\n");
    i = 0;
    while (i < numTrustedCerts) {
        cert = CkJavaKeyStore_GetTrustedCert(jks,i);
        printf("%s: %s\n",CkJavaKeyStore_getTrustedCertAlias(jks,i),CkCert_subjectDN(cert));
        CkCert_Dispose(cert);
        i = i + 1;
    }

    // For each private key entry, get the private key and
    // the associated certificate chain.
    // Each private key is password protected.  Usually it is the same
    // password as used for the keyed digest of the entire JKS.  
    // However, this does not have to be.  The password is passed
    // here to handle the possibility of each private key requiring
    // a different password.
    printf("Private Keys:\n");
    i = 0;
    while (i < numPrivateKeys) {
        privKey = CkJavaKeyStore_GetPrivateKey(jks,"jksFilePassword",i);
        printf("%s\n",CkJavaKeyStore_getPrivateKeyAlias(jks,i));
        certChain = CkJavaKeyStore_GetCertChain(jks,i);

        // The 1st certificate in the chain is the one associated with the private key.
        cert = CkCertChain_GetCert(certChain,0);
        printf("%s\n",CkCert_subjectDN(cert));

        CkCert_Dispose(cert);
        CkCertChain_Dispose(certChain);
        CkPrivateKey_Dispose(privKey);
        i = i + 1;
    }



    CkJavaKeyStore_Dispose(jks);

    }