package googleproxy; /* * To change this template, choose Tools | Templates * and open the template in the editor. package buzzerproxy; import java.net.*; import java.io.*; import org.bouncycastle.util.encoders.Hex; import org.bouncycastle.crypto.BufferedBlockCipher; import org.bouncycastle.crypto.paddings.PaddedBufferedBlockCipher; import org.bouncycastle.crypto.modes.CBCBlockCipher; import org.bouncycastle.crypto.engines.AESEngine; import org.bouncycastle.crypto.params.KeyParameter; import org.bouncycastle.crypto.CryptoException; */ /* public final class AES { public static final String decryptAES(String key, String message) throws Exception { // Get the KeyGenerator KeyGenerator kgen = KeyGenerator.getInstance("AES"); kgen.init(128); // 192 and 256 bits may not be available // Generate the secret key specs. SecretKey skey = kgen.generateKey(); byte[] raw = skey.getEncoded(); SecretKeySpec skeySpec = new SecretKeySpec(raw, "AES"); // Instantiate the cipher Cipher cipher = Cipher.getInstance("AES"); ////// cipher.init(Cipher.ENCRYPT_MODE, skeySpec); ////// ////// byte[] encrypted = ////// cipher.doFinal((args.length == 0 ////// ? "This is just an example" : args[0]).getBytes()); ////// System.out.println("encrypted string: " + asHex(encrypted)); byte[] theByteArray = message.getBytes(); cipher.init(Cipher.DECRYPT_MODE, skeySpec); byte[] original = cipher.doFinal(theByteArray); String originalString = new String(original); System.out.println("Original string: " + originalString + " " + asHex(original)); return originalString; } public static final String encryptAES(String key, String message) throws Exception { // Get the KeyGenerator KeyGenerator kgen = KeyGenerator.getInstance("AES"); kgen.init(128); // 192 and 256 bits may not be available // Generate the secret key specs. SecretKey skey = kgen.generateKey(); byte[] raw = skey.getEncoded(); SecretKeySpec skeySpec = new SecretKeySpec(raw, "AES"); // Instantiate the cipher Cipher cipher = Cipher.getInstance("AES"); cipher.init(Cipher.ENCRYPT_MODE, skeySpec); byte[] theByteArray = message.getBytes(); byte[] encrypted = cipher.doFinal(theByteArray); System.out.println("encrypted string: " + asHex(encrypted)); return asHex(encrypted); } public static String asHex(byte buf[]) { StringBuilder strbuf = new StringBuilder(buf.length * 2); int i; for (i = 0; i < buf.length; i++) { if (((int) buf[i] & 0xff) < 0x10) { strbuf.append("0"); } strbuf.append(Long.toString((int) buf[i] & 0xff, 16)); } return strbuf.toString(); } public static final String unHex(String hex) { byte[] bytes = new byte[hex.length() / 2]; for (int i = 0; i < bytes.length; i++) { bytes[i] = (byte) Integer.parseInt(hex.substring(2 * i, 2 * i + 2), 16); } String multi = new String(bytes); System.out.println(multi); return multi; } } */