Method encodeString

java/src/cx/fbn/encrypt/EnCrypt.java:84–111

(String text, int length)

      * 2. Use specific named charset
      */
     private byte[] encodeString(String text, int length) {
    	 
    	 final Charset charSet = getCharset();
 		
 		// Convert to bytes using given encoding, and align *bytes* to multiple of
 		// 8, with 4 bytes reserved for the crc
 		final byte[] bytes = text.getBytes(charSet);
 		int align = (bytes.length + 4) % length;
 		int paddingNeeded = length - align;
 		final byte[] paddedBytes = Arrays.copyOf(bytes, bytes.length + paddingNeeded);
 		
 		// Now calculate the crc, using the bytes
 		String crc = crcHeader(paddedBytes);
 		
 		byte[] crcBytes = crc.getBytes(charSet);
 		if(crcBytes.length != 4) {
 			System.err.println("CRC Bytes really should be 4 in length!");
 			return null;
 		}
 		
 		// Now combine crc bytes and string bytes into byte array
 		// for encryption
 		byte[] total = new byte[paddedBytes.length + crcBytes.length];
 		System.arraycopy(crcBytes, 0, total, 0, crcBytes.length);
 		System.arraycopy(paddedBytes, 0, total, crcBytes.length, paddedBytes.length);
 		
 		return total;
     }

     
     /**