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/*******************************************************************************
* ============LICENSE_START====================================================
* * org.onap.ccsdk
* * ===========================================================================
* * Copyright © 2023 AT&T Intellectual Property. All rights reserved.
* * ===========================================================================
* * 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.
* * ============LICENSE_END====================================================
* *
* *
******************************************************************************/
package org.onap.ccsdk.apps.cadi.test;
import static org.hamcrest.CoreMatchers.*;
import static org.junit.Assert.*;
import org.junit.*;
import java.io.ByteArrayInputStream;
import java.io.ByteArrayOutputStream;
import java.io.File;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.io.PrintStream;
import java.lang.reflect.Field;
import java.nio.file.Files;
import java.nio.file.Paths;
import javax.crypto.CipherInputStream;
import javax.crypto.CipherOutputStream;
import javax.crypto.SecretKey;
import org.onap.ccsdk.apps.cadi.AES;
import org.onap.ccsdk.apps.cadi.CadiException;
import org.onap.ccsdk.apps.cadi.Symm;
public class JU_AES {
private AES aes;
private ByteArrayInputStream baisEncrypt;
private ByteArrayInputStream baisDecrypt;
private ByteArrayOutputStream baosEncrypt;
private ByteArrayOutputStream baosDecrypt;
private ByteArrayOutputStream errStream;
@Before
public void setup() throws Exception {
byte[] keyBytes = new byte[AES.AES_KEY_SIZE/8];
char[] codeset = Symm.base64.codeset;
int offset = (Math.abs(codeset[0]) + 47) % (codeset.length - keyBytes.length);
for (int i = 0; i < keyBytes.length; ++i) {
keyBytes[i] = (byte)codeset[i+offset];
}
aes = new AES(keyBytes, 0, keyBytes.length);
errStream = new ByteArrayOutputStream();
System.setErr(new PrintStream(errStream));
}
@After
public void tearDown() {
System.setErr(System.err);
}
@Test
public void newKeyTest() throws Exception {
SecretKey secretKey = AES.newKey();
assertThat(secretKey.getAlgorithm(), is(AES.class.getSimpleName()));
}
@Test
public void encryptDecrpytFromBytes() throws Exception {
String orig = "I'm a password, really";
byte[] encrypted = aes.encrypt(orig.getBytes());
byte[] decrypted = aes.decrypt(encrypted);
assertThat(new String(decrypted), is(orig));
Field aeskeySpec_field = AES.class.getDeclaredField("aeskeySpec");
aeskeySpec_field.setAccessible(true);
aeskeySpec_field.set(aes, null);
try {
aes.encrypt(orig.getBytes());
fail("Should have thrown an exception");
} catch (CadiException e) {
}
try {
aes.decrypt(encrypted);
fail("Should have thrown an exception");
} catch (CadiException e) {
}
}
@Test
public void saveToFileTest() throws Exception {
String filePath = "src/test/resources/output_key";
File keyfile = new File(filePath);
aes.save(keyfile);
assertTrue(Files.isReadable(Paths.get(filePath)));
assertFalse(Files.isWritable(Paths.get(filePath)));
assertFalse(Files.isExecutable(Paths.get(filePath)));
keyfile.delete();
}
@Test
public void encryptDecryptFromInputStream() throws Exception {
String orig = "I'm a password, really";
byte[] b64encrypted;
String output;
CipherInputStream cisEncrypt;
CipherInputStream cisDecrypt;
// Test CipherInputStream
baisEncrypt = new ByteArrayInputStream(orig.getBytes());
cisEncrypt = aes.inputStream(baisEncrypt, true);
baosEncrypt = new ByteArrayOutputStream();
transferFromInputStreamToOutputStream(cisEncrypt, baosEncrypt);
cisEncrypt.close();
b64encrypted = baosEncrypt.toByteArray();
baisDecrypt = new ByteArrayInputStream(b64encrypted);
cisDecrypt = aes.inputStream(baisDecrypt, false);
baosDecrypt = new ByteArrayOutputStream();
transferFromInputStreamToOutputStream(cisDecrypt, baosDecrypt);
cisDecrypt.close();
output = new String(baosDecrypt.toByteArray());
assertThat(output, is(orig));
Field aeskeySpec_field = AES.class.getDeclaredField("aeskeySpec");
aeskeySpec_field.setAccessible(true);
aeskeySpec_field.set(aes, null);
assertNull(aes.inputStream(baisEncrypt, true));
assertThat(errStream.toString(), is("Error creating Aes CipherInputStream\n"));
}
@Test
public void encryptDecryptFromOutputStream() throws Exception {
String orig = "I'm a password, really";
byte[] b64encrypted;
String output;
CipherOutputStream cosEncrypt;
CipherOutputStream cosDecrypt;
// Test CipherOutputStream
baisEncrypt = new ByteArrayInputStream(orig.getBytes());
baosEncrypt = new ByteArrayOutputStream();
cosEncrypt = aes.outputStream(baosEncrypt, true);
transferFromInputStreamToOutputStream(baisEncrypt, cosEncrypt);
cosEncrypt.close();
b64encrypted = baosEncrypt.toByteArray();
baosDecrypt = new ByteArrayOutputStream();
cosDecrypt = aes.outputStream(baosDecrypt, false);
baisDecrypt = new ByteArrayInputStream(b64encrypted);
transferFromInputStreamToOutputStream(baisDecrypt, cosDecrypt);
cosDecrypt.close();
output = new String(baosDecrypt.toByteArray());
assertThat(output, is(orig));
Field aeskeySpec_field = AES.class.getDeclaredField("aeskeySpec");
aeskeySpec_field.setAccessible(true);
aeskeySpec_field.set(aes, null);
assertNull(aes.outputStream(baosEncrypt, true));
assertThat(errStream.toString(), is("Error creating Aes CipherOutputStream\n"));
}
public void transferFromInputStreamToOutputStream(InputStream is, OutputStream os) throws IOException {
byte[] buffer = new byte[200];
int len;
while ((len = is.read(buffer)) != -1) {
os.write(buffer, 0, len);
}
}
}
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