Blackberry JAVA DEVELOPMENT ENVIRONMENT - - CRYPTOGRAPHIC SMART CARD DRIVER - DEVELOPMENT GUIDE Guía para resolver problemas descargar pdf (Pagina 106)

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BlackBerry Java Development Environment Development Guide

if ( ( input.length < inputOffset + modulusLength ) || ( output.length <

outputOffset + modulusLength ) ) {

throw new IllegalArgumentException();

}

// Construct the response Application Protocol Data Unit

ResponseAPDU response = new ResponseAPDU();

// Construct the command and set its information

// Create a CommandAPDU which your smart card will understand

CommandAPDU signAPDU = new CommandAPDU( (byte)0x80, (byte)0x56, (byte)0x00,

(byte)0x00, modulusLength );

signAPDU.setLcData( input, inputOffset, input.length - inputOffset );

// Send the command to the smartcard

sendAPDU( signAPDU, response );

// Validate the status words of the response

// Check for response codes specific to your smart card

if ( response.checkStatusWords( (byte)0x90, (byte)0x00 ) ) {

byte [] responseData = response.getData();

System.arraycopy( responseData, 0, output, outputOffset, responseData.length );

}

else {

throw new SmartCardException( “Invalid response code, sw1=” +

Integer.toHexString( response.getSW1() & 0xff ) + “ sw2=” + Integer.toHexString(

response.getSW2() & 0xff ) );

}

Create a CryptoToken for private key operations

Task Steps

Create a token class. > In your application, create a class that extends an RSA, DSA, or ECC token class. For example:

final class MyRSACryptoToken extends RSACryptoToken implements

Persistable

Determine if the token can perform

BlackBerry® device user authentication.

> Create a method that returns true if your token class prompts the BlackBerry device user for

authentication information.

public boolean providesUserAuthentication()

{

return true;

}

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Blackberry JAVA DEVELOPMENT ENVIRONMENT - - CRYPTOGRAPHIC SMART CARD DRIVER - DEVELOPMENT GUIDE Guía para resolver problemas Pagina 106