[
https://issues.apache.org/jira/browse/CODEC-135?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Sebb updated CODEC-135:
-----------------------
Fix Version/s: (was: 1.x)
Labels: (was: patch)
> Null Pointer Exception
> ----------------------
>
> Key: CODEC-135
> URL: https://issues.apache.org/jira/browse/CODEC-135
> Project: Commons Codec
> Issue Type: Bug
> Affects Versions: 1.5
> Environment: Android Application Development
> Reporter: john
> Original Estimate: 12h
> Remaining Estimate: 12h
>
> I am trying to parse a certificate(.pfx).But I am getting following exception
> while parsing the certificate.
> CertificateException:org.apache.harmony.security.asn1.ASN1Exception: DER:
> only definite length encoding MUST be user.
> {code}
> package com.ams;
> import java.io.BufferedInputStream;
> import java.io.FileInputStream;
> import java.security.KeyStore;
> import java.security.KeyStoreException;
> import java.security.cert.CertificateFactory;
> import java.security.cert.X509Certificate;
> import java.util.Enumeration;
> import javax.security.cert.Certificate;
> import android.content.Context;
> import android.util.Log;
> import android.view.View;
> import android.view.View.OnClickListener;
> import android.widget.Button;
> import android.widget.Toast;
> public class CertificateComponent {
> private static final String TAG = "CertificateParser";
> public static final String PFX = "sdcard/AC350.pfx";
> public static final String CER = "sdcard/test.cer";
> X509Certificate cert;
> FileInputStream in;
> Context ctx;
> private Button Pkcs12Button;
> private Button CertButton;
> public void click(View v) {
> try {
> if (v.getId() == R.id.pkcs12_button) {
> String password = "TZ96dtbx";
> KeyStore ks = KeyStore.getInstance("PKCS12");
> in= new FileInputStream(PFX);
> // byte[] p12 = readFile(PFX);
> in.close();
> ks.load(in, password.toCharArray());
> Enumeration<String> aliasesEnum = ks.aliases();
> // Log.i(TAG, "certificate details:" +
> aliasesEnum);
>
> String alias = (String)
> aliasesEnum.nextElement();
> // System.out.println("Alias: " + alias);
> cert = (X509Certificate)
> ks.getCertificate(alias);
>
> while (aliasesEnum.hasMoreElements()) {
>
> Log.i(TAG, "Type:" + cert.getType());
> Log.i(TAG, "Key Algorithm:"
> +
> cert.getPublicKey().getAlgorithm());
> Log.i(TAG, "Version:" +
> cert.getVersion());
> Log.i(TAG, "Issuer DN:" +
> cert.getIssuerDN());
> Log.i(TAG, "Subject:" +
> cert.getSubjectDN());
> Log.i(TAG, "Valid From:" +
> cert.getNotBefore());
> Log.i(TAG, "Valid Till:" +
> cert.getNotAfter());
> Log.i(TAG, "Public Key:" +
> cert.getPublicKey());
> Log.i(TAG, "Serial Number:" +
> cert.getSerialNumber());
> Log.i(TAG, "Signature:" +
> cert.getSignature());
>
> String message = "Check Logcat For
> Certificate Details";
> Toast.makeText(ctx, message,
> Toast.LENGTH_SHORT).show();
> }
> } else if (v.getId() == R.id.cert_button) {
> // String filename = "sdcard/test_b64.cer";
> in = new FileInputStream(CER);
> BufferedInputStream bf = new
> BufferedInputStream(in);
> CertificateFactory cf =
> CertificateFactory.getInstance("X.509");
>
> cert = (X509Certificate)
> cf.generateCertificate(bf);
>
> while (bf.available() > 0) {
>
> Log.i(TAG, "Type:" + cert.getType());
> Log.i(TAG, "Key Algorithm:"
> +
> cert.getPublicKey().getAlgorithm());
> Log.i(TAG, "Version:" +
> cert.getVersion());
> Log.i(TAG, "Issuer DN:" +
> cert.getIssuerDN());
> Log.i(TAG, "Subject:" +
> cert.getSubjectDN());
> Log.i(TAG, "Valid From:" +
> cert.getNotBefore());
> Log.i(TAG, "Valid Till:" +
> cert.getNotAfter());
> Log.i(TAG, "Public Key:" +
> cert.getPublicKey());
> Log.i(TAG, "Serial Number:" +
> cert.getSerialNumber());
> Log.i(TAG, "Signature:" +
> cert.getSignature());
> // Log.i(TAG, "certificate details:" +
> cert);
> }
> in.close();
> String message = "Check Logcat For Certificate
> Details";
> Toast.makeText(ctx, message,
> Toast.LENGTH_SHORT).show();
> }
> } catch (KeyStoreException e) {
> Log.i(TAG, " KeyStoreException " + e.getMessage());
> } catch (Exception e) {
> // TODO Auto-generated catch block
> Log.i(TAG, " Exception: " + e.getMessage());
> }
>
>
>
> }
> }
> {code}
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