crypto/cipher/src/test/groovy/org/apache/shiro/crypto/BlowfishCipherServiceTest.groovy

/*
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 * to you 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,
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package org.apache.shiro.crypto

import org.apache.shiro.codec.CodecSupport
import org.apache.shiro.util.ByteSource
import org.junit.Test

import static org.junit.Assert.assertTrue

/**
 * Test cases for the {@link BlowfishCipherService} class.
 *
 * @since 1.0
 */
public class BlowfishCipherServiceTest {

    private static final String[] PLAINTEXTS = [
        "Hello, this is a test.",
        "Lorem ipsum dolor sit amet, consectetur adipisicing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua."
    ];

    @Test
    public void testBlockOperations() {
        BlowfishCipherService blowfish = new BlowfishCipherService();

        byte[] key = blowfish.generateNewKey().getEncoded();

        for (String plain : PLAINTEXTS) {
            byte[] plaintext = CodecSupport.toBytes(plain);
            ByteSource ciphertext = blowfish.encrypt(plaintext, key);
            ByteSource decrypted = blowfish.decrypt(ciphertext.getBytes(), key);
            assertTrue(Arrays.equals(plaintext, decrypted.getBytes()));
        }
    }

    @Test
    public void testStreamingOperations() {

        BlowfishCipherService cipher = new BlowfishCipherService();
        byte[] key = cipher.generateNewKey().getEncoded();

        for (String plain : PLAINTEXTS) {
            byte[] plaintext = CodecSupport.toBytes(plain);
            InputStream plainIn = new ByteArrayInputStream(plaintext);
            ByteArrayOutputStream cipherOut = new ByteArrayOutputStream();
            cipher.encrypt(plainIn, cipherOut, key);

            byte[] ciphertext = cipherOut.toByteArray();
            InputStream cipherIn = new ByteArrayInputStream(ciphertext);
            ByteArrayOutputStream plainOut = new ByteArrayOutputStream();
            cipher.decrypt(cipherIn, plainOut, key);

            byte[] decrypted = plainOut.toByteArray();
            assertTrue(Arrays.equals(plaintext, decrypted));
        }

    }
}