Application Development; Smart Cards

Application Development; Smart Cards

1. Limitations

   • Limited Memory
   • Limited Processing Power
   • Limited APIs
   • Limited connectivity
   • Closed Dev Environment
   • Slow Standard Development

2. SIM Platform

   • Removable Security Module within GSM Handset
   • Subscriber Identity
   • Authentication
   • Lang, Location, Channel Selection

3. SIM Toolkit

   • Standard Set of feature allowing service on the SIM
   • STK Applications provide services
   • 3GPP TS 32.11 Standard
   • Why
     • Proprietary features in handsets
       • Large Costs
       • Negotiate with handset providers
     • Wont operate on all handsets
     • Industry StandardAPI

4. SIM is in command in the toolkit

   • Display Text
   • Select Item
   • Get Input
   • SETUP Call
   • ENVELOPE Command
     • Send data into SIM

5. JAVA CARD

   • Running Special Java Programs
   • Billion Cards
   • Requirements
     • 16K ROM
     • 8K EEPROM
     • 256 Bytes RAM
   • JV VM
     • Runs For ever
     • Garbage Collection
     • Applets Life start when added to registery
   • Standard Packages 2.X Framework
     • javacard.framework
     • javacardx.framework
     • javacardx.crypto
     • javacardx.cryptoEnc
   • Environment
     • Each Applet has AID Assigned
       • install() function
         • Creates reg entry
     • JCRE
   • Java SIM
     • Same features as native GSM SIM
     • Dual/Multiple sourcing
     • Subset of Java cARD
     • extra packages
       • sim.toolkit
       • sim.access