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/*-
* ============LICENSE_START==========================================
* OPENECOMP - DCAE
* ===================================================================
* Copyright (c) 2017 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.openecomp.ncomp.utils;
import static org.openecomp.ncomp.utils.Base64.decode64;
import static org.openecomp.ncomp.utils.CryptoUtils.createKeyPair;
import static org.openecomp.ncomp.utils.CryptoUtils.decrypt;
import static org.openecomp.ncomp.utils.CryptoUtils.decryptPrivate;
import static org.openecomp.ncomp.utils.CryptoUtils.digest;
import static org.openecomp.ncomp.utils.CryptoUtils.digestFile;
import static org.openecomp.ncomp.utils.CryptoUtils.encrypt;
import static org.openecomp.ncomp.utils.CryptoUtils.encryptPublic;
import static org.openecomp.ncomp.utils.CryptoUtils.getInputStream;
import static org.openecomp.ncomp.utils.CryptoUtils.getKey;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.InputStream;
import java.security.KeyFactory;
import java.security.KeyPair;
import java.security.KeyPairGenerator;
import java.security.MessageDigest;
import java.security.PrivateKey;
import java.security.PublicKey;
import java.security.spec.PKCS8EncodedKeySpec;
import java.security.spec.X509EncodedKeySpec;
import javax.crypto.Cipher;
import javax.crypto.CipherInputStream;
import javax.crypto.spec.SecretKeySpec;
import junit.framework.TestCase;
import org.openecomp.ncomp.utils.CryptoUtils.EncryptionType;
import org.openecomp.ncomp.webservice.utils.FileUtils;
public class CryptoUtilsTest extends TestCase {
String k = "dafdfkj";
String v = "Hello";
public void test_encrypt() {
assertEquals(v, decrypt(k,encrypt(k, v)));
}
public void test_streams() throws Exception {
Cipher aes = Cipher.getInstance("AES/ECB/PKCS5Padding");
MessageDigest digest = MessageDigest.getInstance("SHA");
digest.update("foobar".getBytes());
SecretKeySpec key1 = new SecretKeySpec(digest.digest(), 0, 16, "AES");
aes.init(Cipher.ENCRYPT_MODE, key1);
InputStream in = null;
FileOutputStream out = null;
try {
in = new FileInputStream("test/Test.txt");
CipherInputStream in2 = new CipherInputStream(in, aes);
out = new FileOutputStream("test/Encrypted.txt");
FileUtils.copyStream(in2, out);
} finally {
if (in != null)
in.close();
if (out != null)
out.close();
}
in = null;
out = null;
aes.init(Cipher.DECRYPT_MODE, key1);
try {
in = new FileInputStream("test/Encrypted.txt");
CipherInputStream in2 = new CipherInputStream(in, aes);
out = new FileOutputStream("test/Decrypted.txt");
FileUtils.copyStream(in2, out);
} finally {
if (in != null)
in.close();
if (out != null)
out.close();
}
assertEquals(digestFile("test/Test.txt"), digestFile("test/Decrypted.txt"));
}
@SuppressWarnings("resource")
public void test_streams_2() throws Exception {
InputStream in = null;
InputStream in2 = null;
FileOutputStream out = null;
try {
in = new FileInputStream("test/Test.txt");
in2 = getInputStream(in, EncryptionType.ENCRYPT, k);
out = new FileOutputStream("test/Encrypted.txt");
FileUtils.copyStream(in2, out);
} finally {
if (in != null)
in.close();
if (in2 != null)
in2.close();
if (out != null)
out.close();
}
in = null;
in2 = null;
out = null;
try {
in = new FileInputStream("test/Encrypted.txt");
in2 = getInputStream(in, EncryptionType.DECRYPT, k);
out = new FileOutputStream("test/Decrypted.txt");
FileUtils.copyStream(in2, out);
} finally {
if (in != null)
in.close();
if (in2 != null)
in2.close();
if (out != null)
out.close();
}
assertEquals(digestFile("test/Test.txt"), digestFile("test/Decrypted.txt"));
}
public void test_public_key() throws Exception {
KeyPairGenerator keyPairGenerator = KeyPairGenerator.getInstance("RSA");
KeyPair keyPair = keyPairGenerator.generateKeyPair();
Cipher rsa = Cipher.getInstance("RSA/ECB/PKCS1Padding");
rsa.init(Cipher.ENCRYPT_MODE, keyPair.getPublic());
byte[] ciphertext = rsa.doFinal(v.getBytes());
rsa.init(Cipher.DECRYPT_MODE, keyPair.getPrivate());
byte[] text = rsa.doFinal(ciphertext);
assertEquals(v, new String(text));
}
public void test_public_key_1() throws Exception {
createKeyPair("test/key");
String publicKey = getKey("test/key.public");
System.out.println(digest(decode64(publicKey)));
String privateKey = getKey("test/key.private");
System.out.println(digest(decode64(privateKey)));
KeyFactory keyFactory = KeyFactory.getInstance("RSA");
PublicKey k1 = keyFactory.generatePublic(new X509EncodedKeySpec(decode64(publicKey)));
PrivateKey k2 = keyFactory.generatePrivate(new PKCS8EncodedKeySpec(decode64(privateKey)));
Cipher rsa = Cipher.getInstance("RSA/ECB/PKCS1Padding");
rsa.init(Cipher.ENCRYPT_MODE, k1);
byte[] ciphertext = rsa.doFinal(v.getBytes());
rsa.init(Cipher.DECRYPT_MODE, k2);
byte[] text = rsa.doFinal(ciphertext);
assertEquals(v, new String(text));
}
public void test_public_key_2() throws Exception {
createKeyPair("test/key");
String publicKey = getKey("test/key.public");
System.out.println(digest(decode64(publicKey)));
String privateKey = getKey("test/key.private");
System.out.println(digest(decode64(privateKey)));
assertEquals(v, decryptPrivate(privateKey,encryptPublic(publicKey, v)));
}
}
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