Java encryption

	public void encrypt() {
		/* Initialize the byte array in which to store the encrypted data */
		byte[] encrypted = new byte[1];
		String encodedString = null;
		try {
 
			/* Read the AES key String from the file */
			// String str_key = readKeyFromFile();
			// String str_key = skeySpec;
			byte[] key = skeySpec.getEncoded();
			BASE64Encoder base64Encoder = new BASE64Encoder();
			encodedString = base64Encoder.encodeBuffer(key);
			// System.out.println(encodedString.getBytes());
			FileOutputStream fos = new FileOutputStream("d:\\file.txt");
			DataOutputStream dos = new DataOutputStream(fos);
			dos.write(encodedString.getBytes());
 
			/* Use of BASE64Decoder to read the key stored in BASE64 format */
			BASE64Decoder base64Decoder = new BASE64Decoder();
			byte[] key_byteform = base64Decoder.decodeBuffer(encodedString);
 
			/*
			 * Regeneration of SecretKeySpec from the raw bytes retrieved after
			 * BASE64 decoding
			 */
			SecretKeySpec skeySpec = new SecretKeySpec(key_byteform, "AES");
 
			/* Instantiate the cipher */
			cipher = Cipher.getInstance("AES/ECB/PKCS5Padding");
 
			/* Initialize the cipher in ENCRYPT mode with key for encryption */
			cipher.init(Cipher.ENCRYPT_MODE, skeySpec);
/*call doEncrypt with text and cipher
doEncrypt("My text", cipher);
}
 
 
	private String doEncrypt(String strencryptText, Cipher cipher)
			throws BadPaddingException, IllegalBlockSizeException, SQLException {
		String strreturnEncryptedText = "";
		byte[] encrypted = new byte[1];
		encrypted = cipher.doFinal(strencryptText.getBytes());
		BASE64Encoder base64_encoder = new BASE64Encoder();
		strreturnEncryptedText = base64_encoder.encodeBuffer(encrypted);
		return strreturnEncryptedText;
	}
 
 
public SecretKeySpec createKey() {
		try {
			/*
			 * The class KeyGenerator provided the functionality of
			 * symmetric-key keygenerator
			 */
			KeyGenerator kgen = KeyGenerator.getInstance("AES");
 
			/*
			 * Initialize the key generator with the keysize. The key size is an
			 * algorithm specific metric specified in number of bits
			 */
			kgen.init(128); // 192 and 256 bits may not be available
 
			/* Generate the SecretKey */
			SecretKey skey = kgen.generateKey();
			String keyFormat = skey.getFormat();
		
			/* Get the key in the encoded format */
			byte[] raw = skey.getEncoded();
 
			/* Construct an algorithm specific secret key from byte array */
			skeySpec = new SecretKeySpec(raw, "AES");
		} catch (NoSuchAlgorithmException nsae) {
			System.out.println(nsae);
		}
		return skeySpec;
	}

                                              

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