Blackberry Java Development Environment 4.6.0 Manual - Halaman 24
Jelajahi secara online atau unduh pdf Manual untuk Perangkat lunak Blackberry Java Development Environment 4.6.0. Blackberry Java Development Environment 4.6.0 36 halaman. Cryptographic smart card driver
Halaman CetakCryptographic Smart Card Driver Development Guide
// Check for response codes specific to your smart card
if ( response.checkStatusWords( (byte)0x90, (byte)0x00 ) ) {
return true;
}
else if ( response.checkStatusWords( (byte)0x64, (byte)0xF8 ) ) {
throw new SmartCardLockedException();
}
else {
// Authentication failed
return false;
}
}
/**
* Retrieve an ID for this session's associated smart card.
*/
protected SmartCardID getSmartCardIDImpl() throws SmartCardException
{
// Retrieve a unique ID from the card
byte [] uniqueCardData = new byte[] { 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07,
0x08, 0x09, 0x0a, 0x0b };
// Convert byte array to a long
SHA1Digest digest = new SHA1Digest();
digest.update( uniqueCardData );
long idLong = byteArrayToLong( Arrays.copy( digest.getDigest(), 0, 8 ) );
// Using friendly display name
return new SmartCardID( idLong , ID_STRING, getSmartCard() );
}
/**
* Converts <code>array</code> into a long integer (Note: the returned value should
* be considered as an unsigned value).
* @throws IllegalArgumentException if <code>array</code> contains a number bigger
* than 64 bits.
*
* Note:
* If your cryptographic smart card driver is only designed to work with
* BlackBerry Version 4.2 or later, you can replace this method with a call to
* CryptoByteArrayArithmetic.valueOf( byte [] ).
*
*/
private long byteArrayToLong( byte[] array )
{
if ( array == null ) {
throw new IllegalArgumentException();
}
// Remove the leading zeros from given byte[] and returns a new byte[] without them.
int zeros = 0;
for ( int i = 0; i < array.length && array[i] == 0; i++ ){
zeros++;
}
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