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From "Anton Rusanov (JIRA)" <j...@apache.org>
Subject [jira] Created: (HARMONY-615) java.security.KeyStoreSpi.engineEntryInstanceOf(..) doesn't distinguish PrivateKeyEntry and SecretKeyEntry
Date Mon, 19 Jun 2006 04:11:29 GMT
java.security.KeyStoreSpi.engineEntryInstanceOf(..) doesn't distinguish PrivateKeyEntry and

         Key: HARMONY-615
         URL: http://issues.apache.org/jira/browse/HARMONY-615
     Project: Harmony
        Type: Bug

  Components: Classlib  
    Reporter: Anton Rusanov

The method can only tell the difference between a certificate entry and a key entry, but doesn't
distinguish KeyStore.PrivateKeyEntry and KeyStore.SecretKeyEntry.
Test case that reveals the problem is down here:

import java.security.*;
import javax.crypto.*;

public class KeyStoreSpi_engineEntryInstanceOfTest {
    public static void main(String[] args) throws Exception {

        // create a KeyStore
        KeyStore keyStore = KeyStore.getInstance(KeyStore.getDefaultType());
        keyStore.load(null, "pwd".toCharArray());

        // genarate a key
        KeyGenerator keyGen = KeyGenerator.getInstance("DES");
        SecretKey secretKey = keyGen.generateKey();

        // put the key into keystore
        String alias = "alias";
        keyStore.setKeyEntry(alias, secretKey, "pwd".toCharArray(), null);

        // check if it is a secret key
        if (keyStore.entryInstanceOf(alias, KeyStore.SecretKeyEntry.class)) {

        // check if it is a private key
        if (keyStore.entryInstanceOf(alias, KeyStore.PrivateKeyEntry.class)) {
            System.out.println("TEST FAILED");

The good way to check if the entry is an instance of the given class would be to get the entry
from the keystore and call instanceof. But there is not enough data to do the check in this
way, because password is required to get the entry, and there is no such parameter. So check
if the entry has certificate chain in it or not seems to be the only way to distinguish KeyStore.PrivateKeyEntry
and KeyStore.SecretKeyEntry.

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