Program to find SHA-1 encryption in android

 private static String convertToHex(byte[] data) {  
     StringBuilder buf = new StringBuilder();  
     for (byte b : data) {  
       int halfbyte = (b >>> 4) & 0x0F;  
       int two_halfs = 0;  
       do {  
         buf.append((0 <= halfbyte) && (halfbyte <= 9) ? (char) ('0' + halfbyte) : (char) ('a' + (halfbyte - 10)));  
         halfbyte = b & 0x0F;  
       } while (two_halfs++ < 1);  
     }  
     return buf.toString();  
   }  
   public static String computeSHAHash(String text) {  
     MessageDigest md;  
     byte[] sha1hash = null;  
     try {  
       md = MessageDigest.getInstance("SHA-1");  
       md.update(text.getBytes("iso-8859-1"), 0, text.length());  
       sha1hash = md.digest();  
     } catch (Exception e) {  
       e.printStackTrace();  
     }  
     return convertToHex(sha1hash);  
   }