A NETWORK SYSTEM WHICH INCORPORATES TRIPLE DES DATA ENCRYPTION IN DISTRIBUTING PINS FOR TOPPING UP CALL TIME IN A MOBILE PHONE USER'S ACCOUNT

摘要

THE INVENTION IS A NETWORK SYSTEM THAT DISTRIBUTES PERSONAL IDENTIFICATION NUMBERS (PINS) FOR CREDITING CALL TIME OR ITS EQUIVALENT MONETARY VALUE INTO MOBILE PHONE USER'S ACCOUNT. IT COMPRISES A SERVER SITE THAT IS LINKED TO A NETWORK OF TERMINATE WHICH ISSUE THE PERSONAL IDENTIFICATION NUMBERS PINS USING SPECIAL CONCEALMENT VOUCHERS. FURTHERMORE, IT EMPLOYS PROVEN SECURE DATA ENCRYPTION STANDARD (DES) ENCRYPTION METHOD TO ENCRYPT DATA THAT IS RELATED TO PERSONAL IDENTIFICATION NUMBERS (PINS) DURING DATA TRANSFER BETWEEN TERMINATE AND SERVE SITE. MIRROR BACK-UP SITES ARE ALSO BUILT IN TO SUPPORT THE SERVER SITE IN CASE OF FAILURE.