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

loJks = createobject("CkJavaKeyStore")

// 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.
llSuccess = loJks.LoadFile("jksFilePassword","/someDir/keyStore.jks")
if (llSuccess <> .T.) then
    ? loJks.LastErrorText
    release loJks
    return
endif

// Find out how many of each type of entry:
lnNumTrustedCerts = loJks.NumTrustedCerts
lnNumPrivateKeys = loJks.NumPrivateKeys

// For each trusted certificate, access it by getting
// it as a cert object.  Also get the alias associated with the certificate.
? "Trusted Certs:"
i = 0
do while i < lnNumTrustedCerts
    loCert = loJks.GetTrustedCert(i)
    ? loJks.GetTrustedCertAlias(i) + ": " + loCert.SubjectDN
    release loCert
    i = i + 1
enddo

// 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.
? "Private Keys:"
i = 0
do while i < lnNumPrivateKeys
    loPrivKey = loJks.GetPrivateKey("jksFilePassword",i)
    ? loJks.GetPrivateKeyAlias(i)
    loCertChain = loJks.GetCertChain(i)

    // The 1st certificate in the chain is the one associated with the private key.
    loCert = loCertChain.GetCert(0)
    ? loCert.SubjectDN

    release loCert
    release loCertChain
    release loPrivKey
    i = i + 1
enddo


release loJks