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BAEL-1202: java keystore (#4011)

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Adrian Precub 2018-04-18 14:21:51 +03:00 committed by Grzegorz Piwowarek
parent 86cebe51d7
commit 263009fb32
2 changed files with 297 additions and 0 deletions
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92
core-java/src/main/java/com/baeldung/keystore/JavaKeyStore.java Normal file
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package com.baeldung.keystore;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.IOException;
import java.nio.file.Files;
import java.nio.file.Paths;
import java.security.KeyStore;
import java.security.KeyStoreException;
import java.security.NoSuchAlgorithmException;
import java.security.PrivateKey;
import java.security.UnrecoverableEntryException;
import java.security.cert.Certificate;
import java.security.cert.CertificateException;
import java.util.Enumeration;
/**
* Created by adi on 3/7/18.
*/
public class JavaKeyStore {
private KeyStore keyStore;
private String keyStoreName;
private String keyStoreType;
private String keyStorePassword;
JavaKeyStore(String keyStoreType, String keyStorePassword, String keyStoreName) throws CertificateException, NoSuchAlgorithmException, KeyStoreException, IOException {
this.keyStoreName = keyStoreName;
this.keyStoreType = keyStoreType;
this.keyStorePassword = keyStorePassword;
}
void createEmptyKeyStore() throws KeyStoreException, CertificateException, NoSuchAlgorithmException, IOException {
if(keyStoreType ==null || keyStoreType.isEmpty()){
keyStoreType = KeyStore.getDefaultType();
}
keyStore = KeyStore.getInstance(keyStoreType);
//load
char[] pwdArray = keyStorePassword.toCharArray();
keyStore.load(null, pwdArray);
// Save the keyStore
FileOutputStream fos = new FileOutputStream(keyStoreName);
keyStore.store(fos, pwdArray);
fos.close();
}
void loadKeyStore() throws IOException, KeyStoreException, CertificateException, NoSuchAlgorithmException {
char[] pwdArray = keyStorePassword.toCharArray();
keyStore.load(new FileInputStream(keyStoreName), pwdArray);
}
void setEntry(String alias, KeyStore.SecretKeyEntry secretKeyEntry, KeyStore.ProtectionParameter protectionParameter) throws KeyStoreException {
keyStore.setEntry(alias, secretKeyEntry, protectionParameter);
}
KeyStore.Entry getEntry(String alias) throws UnrecoverableEntryException, NoSuchAlgorithmException, KeyStoreException {
KeyStore.ProtectionParameter protParam = new KeyStore.PasswordProtection(keyStorePassword.toCharArray());
return keyStore.getEntry(alias, protParam);
}
void setKeyEntry(String alias, PrivateKey privateKey, String keyPassword, Certificate[] certificateChain) throws KeyStoreException {
keyStore.setKeyEntry(alias, privateKey, keyPassword.toCharArray(), certificateChain);
}
void setCertificateEntry(String alias, Certificate certificate) throws KeyStoreException {
keyStore.setCertificateEntry(alias, certificate);
}
Certificate getCertificate(String alias) throws KeyStoreException {
return keyStore.getCertificate(alias);
}
void deleteEntry(String alias) throws KeyStoreException {
keyStore.deleteEntry(alias);
}
void deleteKeyStore() throws KeyStoreException, IOException {
Enumeration<String> aliases = keyStore.aliases();
while (aliases.hasMoreElements()) {
String alias = aliases.nextElement();
keyStore.deleteEntry(alias);
}
keyStore = null;
Files.delete(Paths.get(keyStoreName));
}
KeyStore getKeyStore() {
return this.keyStore;
}
}

205
core-java/src/test/java/com/baeldung/keystore/JavaKeyStoreTest.java Normal file
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package com.baeldung.keystore;
import org.junit.After;
import org.junit.Assert;
import org.junit.Before;
import org.junit.Test;
import sun.security.x509.AlgorithmId;
import sun.security.x509.CertificateAlgorithmId;
import sun.security.x509.CertificateSerialNumber;
import sun.security.x509.CertificateValidity;
import sun.security.x509.CertificateVersion;
import sun.security.x509.CertificateX509Key;
import sun.security.x509.X500Name;
import sun.security.x509.X509CertImpl;
import sun.security.x509.X509CertInfo;
import javax.crypto.KeyGenerator;
import javax.crypto.SecretKey;
import java.io.IOException;
import java.math.BigInteger;
import java.security.InvalidKeyException;
import java.security.KeyPair;
import java.security.KeyPairGenerator;
import java.security.KeyStore;
import java.security.NoSuchAlgorithmException;
import java.security.NoSuchProviderException;
import java.security.SecureRandom;
import java.security.SignatureException;
import java.security.cert.CertificateException;
import java.security.cert.X509Certificate;
import java.util.Date;
/**
* Created by adi on 4/14/18.
*/
public class JavaKeyStoreTest {
private JavaKeyStore keyStore;
private static final String KEYSTORE_PWD = "abc123";
private static final String KEYSTORE_NAME = "myKeyStore";
private static final String KEY_STORE_TYPE = "JCEKS";
private static final String MY_SECRET_ENTRY = "mySecretEntry";
private static final String DN_NAME = "CN=test, OU=test, O=test, L=test, ST=test, C=CY";
private static final String SHA1WITHRSA = "SHA1withRSA";
private static final String MY_PRIVATE_KEY = "myPrivateKey";
private static final String MY_CERTIFICATE = "myCertificate";
@Before
public void setUp() throws Exception {
//using java cryptography extension keyStore instead of Keystore.getDefaultType
keyStore = new JavaKeyStore(KEY_STORE_TYPE, KEYSTORE_PWD, KEYSTORE_NAME);
}
@After
public void tearDown() throws Exception {
if (keyStore.getKeyStore() != null) {
keyStore.deleteKeyStore();
}
}
@Test
public void givenNoKeyStore_whenCreateEmptyKeyStore_thenGetKeyStoreNotNull() throws Exception {
keyStore.createEmptyKeyStore();
KeyStore result = keyStore.getKeyStore();
Assert.assertNotNull(result);
}
@Test
public void givenEmptyKeystore_whenLoadKeyStore_thenKeyStoreLoadedAndSizeZero() throws Exception {
keyStore.createEmptyKeyStore();
keyStore.loadKeyStore();
KeyStore result = keyStore.getKeyStore();
Assert.assertNotNull(result);
Assert.assertTrue(result.size() == 0);
}
@Test
public void givenLoadedKeyStore_whenSetEntry_thenSizeIsOneAndGetKeyNotNull() throws Exception {
keyStore.createEmptyKeyStore();
keyStore.loadKeyStore();
KeyGenerator keygen = KeyGenerator.getInstance("HmacSHA256");
SecretKey secretKey = keygen.generateKey();
//ideally, password should be different for every key
KeyStore.ProtectionParameter protParam = new KeyStore.PasswordProtection(KEYSTORE_PWD.toCharArray());
KeyStore.SecretKeyEntry secretKeyEntry = new KeyStore.SecretKeyEntry(secretKey);
keyStore.setEntry(MY_SECRET_ENTRY, secretKeyEntry, protParam);
KeyStore result = keyStore.getKeyStore();
Assert.assertTrue(result.size() == 1);
KeyStore.Entry entry = keyStore.getEntry(MY_SECRET_ENTRY);
Assert.assertTrue(entry != null);
}
@Test
public void givenLoadedKeyStore_whenSetKeyEntry_thenSizeIsOneAndGetEntryNotNull() throws Exception {
keyStore.createEmptyKeyStore();
keyStore.loadKeyStore();
// Generate the key pair
KeyPairGenerator keyPairGenerator = KeyPairGenerator.getInstance("RSA");
keyPairGenerator.initialize(1024);
KeyPair keyPair = keyPairGenerator.generateKeyPair();
// Generate a self signed certificate
X509Certificate certificate = generateSelfSignedCertificate(keyPair);
X509Certificate[] certificateChain = new X509Certificate[1];
certificateChain[0] = certificate;
keyStore.setKeyEntry(MY_PRIVATE_KEY, keyPair.getPrivate(), KEYSTORE_PWD, certificateChain);
KeyStore result = keyStore.getKeyStore();
Assert.assertTrue(result.size() == 1);
KeyStore.Entry entry = keyStore.getEntry(MY_PRIVATE_KEY);
Assert.assertTrue(entry != null);
}
@Test
public void givenLoadedKeyStore_whenSetCertificateEntry_thenSizeIsOneAndGetCertificateEntryNotNull() throws Exception {
keyStore.createEmptyKeyStore();
keyStore.loadKeyStore();
// Generate the key pair
KeyPairGenerator keyPairGenerator = KeyPairGenerator.getInstance("RSA");
keyPairGenerator.initialize(1024);
KeyPair keyPair = keyPairGenerator.generateKeyPair();
// Generate a self signed certificate
X509Certificate certificate = generateSelfSignedCertificate(keyPair);
keyStore.setCertificateEntry(MY_CERTIFICATE, certificate);
KeyStore result = this.keyStore.getKeyStore();
Assert.assertTrue(result.size() == 1);
java.security.cert.Certificate resultCertificate = keyStore.getCertificate(MY_CERTIFICATE);
Assert.assertNotNull(resultCertificate);
}
@Test
public void givenLoadedKeyStoreWithOneEntry_whenDeleteEntry_thenKeyStoreSizeIsZero() throws Exception {
keyStore.createEmptyKeyStore();
keyStore.loadKeyStore();
KeyGenerator keygen = KeyGenerator.getInstance("HmacSHA256");
SecretKey secretKey = keygen.generateKey();
//ideally, password should be different for every key
KeyStore.ProtectionParameter protParam = new KeyStore.PasswordProtection(KEYSTORE_PWD.toCharArray());
KeyStore.SecretKeyEntry secretKeyEntry = new KeyStore.SecretKeyEntry(secretKey);
keyStore.setEntry(MY_SECRET_ENTRY, secretKeyEntry, protParam);
keyStore.deleteEntry(MY_SECRET_ENTRY);
KeyStore result = this.keyStore.getKeyStore();
Assert.assertTrue(result.size() == 0);
}
@Test
public void givenLoadedKeystore_whenDeleteKeyStore_thenKeyStoreIsNull() throws Exception {
keyStore.createEmptyKeyStore();
keyStore.loadKeyStore();
keyStore.deleteKeyStore();
KeyStore result = this.keyStore.getKeyStore();
Assert.assertTrue(result == null);
}
private X509Certificate generateSelfSignedCertificate(KeyPair keyPair) throws CertificateException, IOException, NoSuchProviderException, NoSuchAlgorithmException, InvalidKeyException, SignatureException {
X509CertInfo certInfo = new X509CertInfo();
// Serial number and version
certInfo.set(X509CertInfo.SERIAL_NUMBER, new CertificateSerialNumber(new BigInteger(64, new SecureRandom())));
certInfo.set(X509CertInfo.VERSION, new CertificateVersion(CertificateVersion.V3));
// Subject & Issuer
X500Name owner = new X500Name(DN_NAME);
certInfo.set(X509CertInfo.SUBJECT, owner);
certInfo.set(X509CertInfo.ISSUER, owner);
// Key and algorithm
certInfo.set(X509CertInfo.KEY, new CertificateX509Key(keyPair.getPublic()));
AlgorithmId algorithm = new AlgorithmId(AlgorithmId.sha1WithRSAEncryption_oid);
certInfo.set(X509CertInfo.ALGORITHM_ID, new CertificateAlgorithmId(algorithm));
// Validity
Date validFrom = new Date();
Date validTo = new Date(validFrom.getTime() + 50L * 365L * 24L * 60L * 60L * 1000L); //50 years
CertificateValidity validity = new CertificateValidity(validFrom, validTo);
certInfo.set(X509CertInfo.VALIDITY, validity);
// Create certificate and sign it
X509CertImpl cert = new X509CertImpl(certInfo);
cert.sign(keyPair.getPrivate(), SHA1WITHRSA);
// Since the SHA1withRSA provider may have a different algorithm ID to what we think it should be,
// we need to reset the algorithm ID, and resign the certificate
AlgorithmId actualAlgorithm = (AlgorithmId) cert.get(X509CertImpl.SIG_ALG);
certInfo.set(CertificateAlgorithmId.NAME + "." + CertificateAlgorithmId.ALGORITHM, actualAlgorithm);
X509CertImpl newCert = new X509CertImpl(certInfo);
newCert.sign(keyPair.getPrivate(), SHA1WITHRSA);
return newCert;
}
}