How Encrypt the GWT String from Client Side

How Encrypt the GWT String from Client Side

• Download the jar file from link.
• Add the following in the .gwt.xml file 

        <inherits name='com.googlecode.gwt.crypto.Crypto'/>

 
• Use the following code in the class

                  String getSHA1for(String text) 

               {

 SHA1Digest sd = new SHA1Digest();

 byte[] bs = text.getBytes();

 sd.update(bs, 0, bs.length);

 byte[] result = new byte[20];

 sd.doFinal(result, 0);

 return byteArrayToHexString(result);

}

String byteArrayToHexString(final byte[] b) 

               {

 final StringBuffer sb = new StringBuffer(b.length * 2);

 for (int i = 0, len = b.length; i < len; i++) {

   int v = b[i] & 0xff;

   if (v < 16) sb.append('0');

   sb.append(Integer.toHexString(v));

 }

 return sb.toString().toUpperCase();

}