Tutorial Smart Command Library
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Tutorial Smart Command Library

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Smart Card Command LibraryCS497 Project PresentationGuide: Dr. Rajat MoonaHitesh KhandelwalDepartment of Computer Science, IIT Kanpur Smart cards Smart cards are electronic card Dedicated processor and memory on a chip So data can be stored and compuation can be made Hence needs an Operation system too. The OS provides: A standard way of interchanging information An interpretation of the commands and data. Security mechanisms Optionally may have Crypto-coprocessors (implementing 3DES, AES, RSA, etc on chip) Cards must interface to a computer or terminal through a standard card reader SCOSTA Standard Based on ISO 7816-4, -8, and -9 Removes ambiguities in ISO 7816 Has support for symmetric key cryptography (3DES algorithm) and internal and external authentication. Encryption/decryption and crypto checksum computation and verification using 3DES are also supported. Command library Need a middleware to absract the interchange of information and performing crypt operations. Removing replication of code in different smart card based application Increasing structuring, modularity and modifiability of applications Reduce the time and cost of developing smart card based applications To promote a standard specification (compliant with SCOSTA, ISO 7816) Overview Compliant with the ISO 7816 and SCOSTA standards Provides easy-to-use wrapper functions which facilitates easy and quick way of performing a sequence of ...

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Smart Card Command Library
 
CS497 Project Presentation
Guide: Dr. Rajat Moona
Hitesh Khandelwal
Department of Computer Science, IIT Kanpur
 
Smart cards
 
Smart cards are electronic card
Dedicated processor and memory on a chip
So data can be stored and compuation can be made
Hence needs an Operation system too.
The OS provides:
A standard way of interchanging information An interpretation of the commands and data. Security mechanisms
Optionally may have Crypto-coprocessors (implementing 3DES, AES, RSA, etc on chip)
Cards must interface to a computer or terminal through a standard card reader  
SCOSTA Standard
 
Based on ISO 7816-4, -8, and -9
Removes ambiguities in ISO 7816
Has support for symmetric key cryptography (3DES algorithm) and internal and external authentication.
Encryption/decryption and crypto checksum computation and verification using 3DES are also supported.
 
Command library
 
Need a middleware to absract the interchange of information and performing crypt operations.
Removing replication of code in different smart card based application
Increasing structuring, modularity and modifiability of applications
Reduce the time and cost of developing smart card based applications
To promote a standard specification (compliant with SCOSTA, ISO 7816)
 
Overview
 
Compliant with the ISO 7816 and SCOSTA standards
Provides easy-to-use wrapper functions which facilitates easy and quick way of performing a sequence of complex operations on smart cards
Based on most commonly used PCSC API and supports the transport layer in T=0, T=1 and T=CL protocols
Implements logging functionality, different security mechanisms(Passwords, Keys), secure messaging, etc
Various cryptographic algorithms and unified platform for using new cryptographic algorithms dynamically
Also handles automatically the warning conditions returned by the card
Can handle getting data using GET RESPONSE command if needed.  
Implementation Design
Expanded
 
Compact
Password
Key
FCP
SE
CRT
DO
ISOFile
Reader
 
ISODO
APDU
ISOSecurity
SMContext
Crypto
Programming smart cards
 
Applications communicate with the card interface devices, often called Smart Card “Readers”
PC/SC API is the most commonly used interface for programming applications
Specification for SmartCard integration in PC environment. Provides a platform(Readers) and vendor neutral way to write applications. It can keep track of installed readers OCF (Open Card Framework)
Uses PC/SC API on MS-Windows. Used for developing JAVA applications with smart cards.
 
PCSC Infrastructure
PC/SC Service Provider Reference Interfaces
 
PC/SC RM Interface
PC/SC IFD Handler Interface
Smart Card Application
IFD Handler
IFD
ICC
Service Provider
Resource Manager
IFD Handler
IFD
ICC  
IFD Handler
IFD
ICC
Drivers
Smart Card Readers
Smart Cards
PCSC Resource manager
 
Manages ICC-related Database
Smart Card Readers Card Types Detects Card Insertion/Removal
Performs Match between Inserted Cards and Requested Interfaces
Controls Multi-Application Access
Resource Locking
 
Using PCSC
 
Applications need to connect to the Resource Mgr.
SCardEstablishContext function. SCardReleaseContext function (to release context) Choose your IFD and connect.
SCardListReaders to list out available readers. SCardConnect to connect to the chosen reader. After Powering up the ICC, ATR (Answer to Reset) is to be looked at.
SCardStatus function. Communication can then take place between IFD and Applications using PC/SC API.
SCardTransmit function.  
CmdLib::Reader class
 
Maintains Connection to PC/SC resource manager, list of readers available
current reader, active protocol, handle to connected reader Reader
static ListReaders
connectReader
disconnectReader
getATR
getStateMessage
Next we will show how to transmit data.
 
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