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Add cipher test

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This commit is contained in:
vanitasvitae 2017-08-05 15:29:01 +02:00
parent 066d366dd5
commit 533cb97f7d
Signed by: vanitasvitae
GPG key ID: 62BEE9264BF17311
5 changed files with 107 additions and 20 deletions
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8
smack-experimental/src/main/java/org/jivesoftware/smackx/ciphers/Aes128GcmNoPadding.java
View file

@ -25,15 +25,15 @@ import javax.crypto.NoSuchPaddingException;
public class Aes128GcmNoPadding extends AesGcmNoPadding {
public static final String NAMESPACE = "urn:xmpp:ciphers:aes-128-gcm-nopadding:0";
public Aes128GcmNoPadding() throws NoSuchPaddingException, NoSuchAlgorithmException, InvalidKeyException,
public Aes128GcmNoPadding(int MODE) throws NoSuchPaddingException, NoSuchAlgorithmException, InvalidKeyException,
NoSuchProviderException, InvalidAlgorithmParameterException {
super(128);
super(128, MODE);
}
public Aes128GcmNoPadding(byte[] keyAndIv) throws NoSuchProviderException, InvalidAlgorithmParameterException,
public Aes128GcmNoPadding(byte[] keyAndIv, int MODE) throws NoSuchProviderException, InvalidAlgorithmParameterException,
NoSuchAlgorithmException, InvalidKeyException, NoSuchPaddingException {
super(AesGcmNoPadding.copyOfRange(keyAndIv, 0, keyAndIv.length / 2), //Key
AesGcmNoPadding.copyOfRange(keyAndIv, keyAndIv.length / 2, keyAndIv.length / 2)); //IV
AesGcmNoPadding.copyOfRange(keyAndIv, keyAndIv.length / 2, keyAndIv.length), MODE); //IV
}
@Override

8
smack-experimental/src/main/java/org/jivesoftware/smackx/ciphers/Aes256GcmNoPadding.java
View file

@ -25,15 +25,15 @@ import javax.crypto.NoSuchPaddingException;
public class Aes256GcmNoPadding extends AesGcmNoPadding {
public static final String NAMESPACE = "urn:xmpp:ciphers:aes-256-gcm-nopadding:0";
public Aes256GcmNoPadding() throws NoSuchPaddingException, NoSuchAlgorithmException, InvalidKeyException,
public Aes256GcmNoPadding(int MODE) throws NoSuchPaddingException, NoSuchAlgorithmException, InvalidKeyException,
NoSuchProviderException, InvalidAlgorithmParameterException {
super(256);
super(256, MODE);
}
public Aes256GcmNoPadding(byte[] keyAndIv) throws NoSuchProviderException, InvalidAlgorithmParameterException,
public Aes256GcmNoPadding(byte[] keyAndIv, int MODE) throws NoSuchProviderException, InvalidAlgorithmParameterException,
NoSuchAlgorithmException, InvalidKeyException, NoSuchPaddingException {
super(AesGcmNoPadding.copyOfRange(keyAndIv, 0, keyAndIv.length / 2), //Key
AesGcmNoPadding.copyOfRange(keyAndIv, keyAndIv.length / 2, keyAndIv.length)); //IV
AesGcmNoPadding.copyOfRange(keyAndIv, keyAndIv.length / 2, keyAndIv.length), MODE); //IV
}
@Override

31
smack-experimental/src/main/java/org/jivesoftware/smackx/ciphers/AesGcmNoPadding.java
View file

@ -37,7 +37,7 @@ public abstract class AesGcmNoPadding {
protected final Cipher cipher;
protected final byte[] key, iv, keyAndIv;
protected AesGcmNoPadding(int bits) throws NoSuchAlgorithmException, NoSuchProviderException,
protected AesGcmNoPadding(int bits, int MODE) throws NoSuchAlgorithmException, NoSuchProviderException,
NoSuchPaddingException, InvalidAlgorithmParameterException, InvalidKeyException {
this.length = bits;
int bytes = bits / 8;
@ -57,23 +57,34 @@ public abstract class AesGcmNoPadding {
cipher = Cipher.getInstance(cipherMode, "BC");
SecretKey keySpec = new SecretKeySpec(key, keyType);
IvParameterSpec ivSpec = new IvParameterSpec(iv);
cipher.init(Cipher.ENCRYPT_MODE, keySpec, ivSpec);
cipher.init(MODE, keySpec, ivSpec);
}
public static AesGcmNoPadding create(String cipherName)
public static AesGcmNoPadding createEncryptionKey(String cipherName)
throws NoSuchProviderException, InvalidKeyException, NoSuchAlgorithmException, NoSuchPaddingException,
InvalidAlgorithmParameterException {
switch (cipherName) {
case Aes128GcmNoPadding.NAMESPACE:
return new Aes128GcmNoPadding();
return new Aes128GcmNoPadding(Cipher.ENCRYPT_MODE);
case Aes256GcmNoPadding.NAMESPACE:
return new Aes256GcmNoPadding();
return new Aes256GcmNoPadding(Cipher.ENCRYPT_MODE);
default: throw new NoSuchAlgorithmException("Invalid cipher.");
}
}
public AesGcmNoPadding(byte[] key, byte[] iv) throws NoSuchPaddingException, NoSuchAlgorithmException,
/**
* Create a new AES key.
* @param key key
* @param iv iv
* @param MODE cipher mode (Cipher.ENCRYPT_MODE / Cipher.DECRYPT_MODE)
* @throws NoSuchPaddingException
* @throws NoSuchAlgorithmException
* @throws NoSuchProviderException
* @throws InvalidAlgorithmParameterException
* @throws InvalidKeyException
*/
public AesGcmNoPadding(byte[] key, byte[] iv, int MODE) throws NoSuchPaddingException, NoSuchAlgorithmException,
NoSuchProviderException, InvalidAlgorithmParameterException, InvalidKeyException {
this.length = key.length * 8;
this.key = key;
@ -86,18 +97,18 @@ public abstract class AesGcmNoPadding {
cipher = Cipher.getInstance(cipherMode, "BC");
SecretKeySpec keySpec = new SecretKeySpec(key, keyType);
IvParameterSpec ivSpec = new IvParameterSpec(iv);
cipher.init(Cipher.DECRYPT_MODE, keySpec, ivSpec);
cipher.init(MODE, keySpec, ivSpec);
}
public static AesGcmNoPadding parse(String namespace, byte[] serialized)
public static AesGcmNoPadding createDecryptionKey(String namespace, byte[] serialized)
throws NoSuchAlgorithmException, InvalidAlgorithmParameterException, NoSuchProviderException,
InvalidKeyException, NoSuchPaddingException {
switch (namespace) {
case Aes128GcmNoPadding.NAMESPACE:
return new Aes128GcmNoPadding(serialized);
return new Aes128GcmNoPadding(serialized, Cipher.DECRYPT_MODE);
case Aes256GcmNoPadding.NAMESPACE:
return new Aes256GcmNoPadding(serialized);
return new Aes256GcmNoPadding(serialized, Cipher.DECRYPT_MODE);
default: throw new NoSuchAlgorithmException("Invalid cipher.");
}
}

4
smack-experimental/src/main/java/org/jivesoftware/smackx/jet/component/JetSecurity.java
View file

@ -71,7 +71,7 @@ public class JetSecurity extends JingleSecurity<JetSecurityElement> {
SmackException.NoResponseException {
this.methodNamespace = method.getNamespace();
this.aesKey = AesGcmNoPadding.create(cipherName);
this.aesKey = AesGcmNoPadding.createEncryptionKey(cipherName);
this.child = method.encryptJingleTransfer(recipient, aesKey.getKeyAndIv());
this.name = name;
this.cipherName = cipherName;
@ -83,7 +83,7 @@ public class JetSecurity extends JingleSecurity<JetSecurityElement> {
InvalidAlgorithmParameterException, NoSuchProviderException, InvalidKeyException, NoSuchPaddingException {
byte[] keyAndIv = method.decryptJingleTransfer(sender, child);
LOGGER.log(Level.INFO, "Transported JET Key has length: " + keyAndIv.length);
aesKey = AesGcmNoPadding.parse(cipherName, keyAndIv);
aesKey = AesGcmNoPadding.createDecryptionKey(cipherName, keyAndIv);
}
@Override

76
smack-experimental/src/test/java/org/jivesoftware/smackx/ciphers/AesGcmNoPaddingTest.java Normal file
View file

@ -0,0 +1,76 @@
/**
*
* Copyright 2017 Paul Schaub
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.jivesoftware.smackx.ciphers;
import static junit.framework.TestCase.assertEquals;
import static junit.framework.TestCase.assertFalse;
import static junit.framework.TestCase.assertNotNull;
import static junit.framework.TestCase.assertTrue;
import java.security.InvalidAlgorithmParameterException;
import java.security.InvalidKeyException;
import java.security.NoSuchAlgorithmException;
import java.security.NoSuchProviderException;
import java.util.Arrays;
import java.util.Random;
import javax.crypto.BadPaddingException;
import javax.crypto.IllegalBlockSizeException;
import javax.crypto.NoSuchPaddingException;
import org.jivesoftware.smack.test.util.SmackTestSuite;
import org.junit.Test;
public class AesGcmNoPaddingTest extends SmackTestSuite {
@Test
public void Aes128Test() throws NoSuchAlgorithmException, NoSuchPaddingException, NoSuchProviderException, InvalidKeyException, InvalidAlgorithmParameterException {
AesGcmNoPadding aes128 = AesGcmNoPadding.createEncryptionKey(Aes128GcmNoPadding.NAMESPACE);
assertNotNull(aes128);
assertEquals(16, aes128.getKey().length);
assertEquals(16, aes128.getIv().length);
assertEquals(32, aes128.getKeyAndIv().length);
assertNotNull(aes128.getCipher());
assertEquals(128, aes128.getLength());
}
@Test
public void Aes256Test() throws NoSuchAlgorithmException, NoSuchPaddingException, NoSuchProviderException, InvalidKeyException, InvalidAlgorithmParameterException {
AesGcmNoPadding aes256 = AesGcmNoPadding.createEncryptionKey(Aes256GcmNoPadding.NAMESPACE);
assertNotNull(aes256);
assertEquals(32, aes256.getKey().length);
assertEquals(32, aes256.getIv().length);
assertEquals(64, aes256.getKeyAndIv().length);
assertNotNull(aes256.getCipher());
assertEquals(256, aes256.getLength());
}
@Test
public void encryptionTest() throws NoSuchAlgorithmException, NoSuchPaddingException, NoSuchProviderException, InvalidKeyException, InvalidAlgorithmParameterException, BadPaddingException, IllegalBlockSizeException {
AesGcmNoPadding aes1 = AesGcmNoPadding.createEncryptionKey(Aes128GcmNoPadding.NAMESPACE);
AesGcmNoPadding aes2 = AesGcmNoPadding.createDecryptionKey(Aes128GcmNoPadding.NAMESPACE, aes1.getKeyAndIv());
byte[] data = new byte[4096];
new Random().nextBytes(data);
byte[] enc = aes1.getCipher().doFinal(data);
assertFalse(Arrays.equals(data, enc));
byte[] dec = aes2.getCipher().doFinal(enc);
assertTrue(Arrays.equals(dec, data));
}
}