Example usage for javax.crypto IllegalBlockSizeException printStackTrace

Introduction

In this page you can find the example usage for javax.crypto IllegalBlockSizeException printStackTrace.

Prototype

public void printStackTrace(PrintStream s) 

Source Link

Document

Prints this throwable and its backtrace to the specified print stream.

Usage

From source file:org.owasp.benchmark.testcode.BenchmarkTest01101.java

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

    String param = "";
    java.util.Enumeration<String> names = request.getHeaderNames();
    while (names.hasMoreElements()) {
        String name = (String) names.nextElement();

        if (org.owasp.benchmark.helpers.Utils.commonHeaders.contains(name)) {
            continue;
        }//from   w  ww.  j av  a2 s.  c o  m

        java.util.Enumeration<String> values = request.getHeaders(name);
        if (values != null && values.hasMoreElements()) {
            param = name;
            break;
        }
    }
    // Note: We don't URL decode header names because people don't normally do that

    String bar = new Test().doSomething(request, param);

    // Code based on example from:
    // http://examples.javacodegeeks.com/core-java/crypto/encrypt-decrypt-file-stream-with-des/

    try {
        javax.crypto.Cipher c = org.owasp.benchmark.helpers.Utils.getCipher();
        // 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.testfileDir), "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 (javax.crypto.IllegalBlockSizeException e) {
        response.getWriter().println(
                "Problem executing crypto - javax.crypto.Cipher.getInstance(java.lang.String,java.security.Provider) Test 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) Test Case");
        e.printStackTrace(response.getWriter());
        throw new ServletException(e);
    }
    response.getWriter()
            .println("Crypto Test javax.crypto.Cipher.getInstance(java.lang.String,java.lang.String) executed");
}

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