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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.junit.Assert.*;
import static org.hamcrest.CoreMatchers.*;
import java.io.ByteArrayInputStream;
import java.io.ByteArrayOutputStream;
import java.io.IOException;
import java.security.SecureRandom;
import org.junit.Test;
import org.onap.ccsdk.apps.cadi.Symm;
import org.onap.ccsdk.apps.cadi.config.Config;
public class JU_Base64 {
private static final String encoding = "Man is distinguished, not only by his reason, but by this singular " +
"passion from other animals, which is a lust of the mind, that by a " +
"perseverance of delight in the continued and indefatigable generation of " +
"knowledge, exceeds the short vehemence of any carnal pleasure.";
private static final String expected =
"TWFuIGlzIGRpc3Rpbmd1aXNoZWQsIG5vdCBvbmx5IGJ5IGhpcyByZWFzb24sIGJ1dCBieSB0aGlz\n" +
"IHNpbmd1bGFyIHBhc3Npb24gZnJvbSBvdGhlciBhbmltYWxzLCB3aGljaCBpcyBhIGx1c3Qgb2Yg\n" +
"dGhlIG1pbmQsIHRoYXQgYnkgYSBwZXJzZXZlcmFuY2Ugb2YgZGVsaWdodCBpbiB0aGUgY29udGlu\n" +
"dWVkIGFuZCBpbmRlZmF0aWdhYmxlIGdlbmVyYXRpb24gb2Yga25vd2xlZGdlLCBleGNlZWRzIHRo\n" +
"ZSBzaG9ydCB2ZWhlbWVuY2Ugb2YgYW55IGNhcm5hbCBwbGVhc3VyZS4=";
@Test
public void test() throws Exception {
// Test with different Padding
assertEncoded("leas", "bGVhcw==");
assertEncoded("leasu", "bGVhc3U=");
assertEncoded("leasur", "bGVhc3Vy");
assertEncoded("leasure", "bGVhc3VyZQ==");
assertEncoded("leasure.", "bGVhc3VyZS4=");
// Test with line ends
assertEncoded(encoding, expected);
}
@Test
public void symmetric() throws IOException {
String symmetric = new String(Symm.keygen());
Symm bsym = Symm.obtain(symmetric);
String result = bsym.encode(encoding);
assertThat(bsym.decode(result), is(encoding));
char[] manipulate = symmetric.toCharArray();
int spot = new SecureRandom().nextInt(manipulate.length);
manipulate[spot]|=0xFF;
String newsymmetric = new String(manipulate);
assertThat(symmetric, is(not(newsymmetric)));
try {
bsym = Symm.obtain(newsymmetric);
result = bsym.decode(result);
assertThat(result, is(encoding));
} catch (IOException e) {
// this is what we want to see if key wrong
}
}
private void assertEncoded(String toEncode, String expected) throws IOException {
String result = Symm.base64.encode(toEncode);
assertThat(result, is(expected));
ByteArrayOutputStream baos = new ByteArrayOutputStream();
Symm.base64.decode(new ByteArrayInputStream(result.getBytes()), baos);
result = baos.toString(Config.UTF_8);
assertThat(result, is(toEncode));
}
}
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