Hash a String using SHA-1 and return hash as String

java_sha1_string

private static String getSha1Hash(String value) {
        MessageDigest digester = null;
        String sha1Value = null;
    	try {
    		digester = MessageDigest.getInstance("SHA-1");
    		digester.update(value.getBytes("UTF-8"), 0, value.length());
           	byte[] sha1hash = digester.digest();
            	StringBuilder sb = new StringBuilder();
                for( byte b : sha1hash )
                {
                    sb.append( String.format("%02X", b) );
                }
                sha1Value = sb.toString();
    		} 
    	catch (Exception e) {
    		Log.e(TAG, "Exception: "+e);
    		throw new RuntimeException(e);
    	}
    	return sha1Value;
}