Benchmark00684.java

/**
 * OWASP Benchmark Project v1.2
 *
 * <p>This file is part of the Open Web Application Security Project (OWASP) Benchmark Project. For
 * details, please see <a
 * href="https://owasp.org/www-project-benchmark/">https://owasp.org/www-project-benchmark/</a>.
 *
 * <p>The OWASP Benchmark is free software: you can redistribute it and/or modify it under the terms
 * of the GNU General Public License as published by the Free Software Foundation, version 2.
 *
 * <p>The OWASP Benchmark is distributed in the hope that it will be useful, but WITHOUT ANY
 * WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
 * PURPOSE. See the GNU General Public License for more details.
 *
 * @author Nick Sanidas
 * @created 2015
 */
package org.owasp.benchmark.testcode;

import java.io.IOException;
import javax.servlet.ServletException;
import javax.servlet.annotation.WebServlet;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

@WebServlet(value = "/crypto-00/Benchmark00684")
public class Benchmark00684 extends HttpServlet {

    private static final long serialVersionUID = 1L;

    @Override
    public void doGet(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        doPost(request, response);
    }

    @Override
    public void doPost(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        response.setContentType("text/html;charset=UTF-8");

        String[] values = request.getParameterValues("Benchmark00684");
        String param;
        if (values != null && values.length > 0) param = values[0];
        else param = "";

        String bar = org.owasp.esapi.ESAPI.encoder().encodeForHTML(param);

        // Code based on example from:
        // http://examples.javacodegeeks.com/core-java/crypto/encrypt-decrypt-file-stream-with-des/
        // 8-byte initialization vector
        //	    byte[] iv = {
        //	    	(byte)0xB2, (byte)0x12, (byte)0xD5, (byte)0xB2,
        //	    	(byte)0x44, (byte)0x21, (byte)0xC3, (byte)0xC3033
        //	    };
        java.security.SecureRandom random = new java.security.SecureRandom();
        byte[] iv = random.generateSeed(16); // AES uses a 16-byte (128-bit) block size

        try {
            javax.crypto.Cipher c =
                    javax.crypto.Cipher.getInstance(
                            "AES/CBC/PKCS5PADDING", java.security.Security.getProvider("SunJCE"));

            // Prepare the cipher to encrypt
            javax.crypto.SecretKey key = javax.crypto.KeyGenerator.getInstance("AES").generateKey();
            java.security.spec.AlgorithmParameterSpec paramSpec =
                    new javax.crypto.spec.IvParameterSpec(iv);
            c.init(javax.crypto.Cipher.ENCRYPT_MODE, key, paramSpec);

            // encrypt and store the results
            byte[] input = {(byte) '?'};
            Object inputParam = bar;
            if (inputParam instanceof String) input = ((String) inputParam).getBytes();
            if (inputParam instanceof java.io.InputStream) {
                byte[] strInput = new byte[1000];
                int i = ((java.io.InputStream) inputParam).read(strInput);
                if (i == -1) {
                    response.getWriter()
                            .println(
                                    "This input source requires a POST, not a GET. Incompatible UI for the InputStream source.");
                    return;
                }
                input = java.util.Arrays.copyOf(strInput, i);
            }
            byte[] result = c.doFinal(input);

            java.io.File fileTarget =
                    new java.io.File(
                            new java.io.File(org.owasp.benchmark.helpers.Utils.TESTFILES_DIR),
                            "passwordFile.txt");
            java.io.FileWriter fw =
                    new java.io.FileWriter(fileTarget, true); // the true will append the new data
            fw.write(
                    "secret_value="
                            + org.owasp.esapi.ESAPI.encoder().encodeForBase64(result, true)
                            + "\n");
            fw.close();
            response.getWriter()
                    .println(
                            "Sensitive value: '"
                                    + org.owasp
                                            .esapi
                                            .ESAPI
                                            .encoder()
                                            .encodeForHTML(new String(input))
                                    + "' encrypted and stored<br/>");

        } catch (java.security.NoSuchAlgorithmException e) {
            response.getWriter()
                    .println(
                            "Problem executing crypto - javax.crypto.Cipher.getInstance(java.lang.String,java.security.Provider) Case");
            e.printStackTrace(response.getWriter());
            throw new ServletException(e);
        } catch (javax.crypto.NoSuchPaddingException e) {
            response.getWriter()
                    .println(
                            "Problem executing crypto - javax.crypto.Cipher.getInstance(java.lang.String,java.security.Provider) Case");
            e.printStackTrace(response.getWriter());
            throw new ServletException(e);
        } catch (javax.crypto.IllegalBlockSizeException e) {
            response.getWriter()
                    .println(
                            "Problem executing crypto - javax.crypto.Cipher.getInstance(java.lang.String,java.security.Provider) Case");
            e.printStackTrace(response.getWriter());
            throw new ServletException(e);
        } catch (javax.crypto.BadPaddingException e) {
            response.getWriter()
                    .println(
                            "Problem executing crypto - javax.crypto.Cipher.getInstance(java.lang.String,java.security.Provider) Case");
            e.printStackTrace(response.getWriter());
            throw new ServletException(e);
        } catch (java.security.InvalidKeyException e) {
            response.getWriter()
                    .println(
                            "Problem executing crypto - javax.crypto.Cipher.getInstance(java.lang.String,java.security.Provider) Case");
            e.printStackTrace(response.getWriter());
            throw new ServletException(e);
        } catch (java.security.InvalidAlgorithmParameterException e) {
            response.getWriter()
                    .println(
                            "Problem executing crypto - javax.crypto.Cipher.getInstance(java.lang.String,java.security.Provider) Case");
            e.printStackTrace(response.getWriter());
            throw new ServletException(e);
        }
        response.getWriter()
                .println(
                        "Crypto javax.crypto.Cipher.getInstance(java.lang.String,java.security.Provider) executed");
    }
}