Troubleshooting guide

110
BlackBerry Java Development Environment Development Guide
/**
* Perform a raw RSA signing.
*
* @param cryptoSystem Cypto system associated with the token.
* @param privateKeyData RSA private key.
* @param input Input data.
* @param inputOffset First byte of the input data to read.
* @param output The buffer for the output data.
* @param outputOffset Position in the output buffer to receive the first written byte.
*
* @throws CryptoTokenException If an error occurs with the crypto
* token or the crypto token is invalid.
* @throws CryptoUnsupportedOperationException If a call is made to
* an unsupported operation.
*/
public void signRSA( RSACryptoSystem cryptoSystem, CryptoTokenPrivateKeyData
privateKeyData, byte[] input, int inputOffset,byte[] output, int outputOffset )
throws CryptoTokenException, CryptoUnsupportedOperationException
{
signDecryptHelper( cryptoSystem, privateKeyData, input, inputOffset, output,
outputOffset, SIGN_DESC, SmartCardSession.SIGN_OPERATION );
}
/**
* Help signing and decryption operations.
* This helper method assists data signing and decryption because
* the operations are very similar.
*/
private void signDecryptHelper( RSACryptoSystem cryptoSystem,
CryptoTokenPrivateKeyData privateKeyData, byte[] input, int inputOffset,
byte[] output, int outputOffset,String accessReason,int operation )
throws CryptoTokenException, CryptoUnsupportedOperationException
{
SmartCardSession smartCardSession = null;
try {
if( privateKeyData instanceof MyCryptoTokenData ) {
SmartCardID smartCardID = ((MyCryptoTokenData) privateKeyData
).getSmartCardID();
smartCardSession = SmartCardFactory.getSmartCardSession( smartCardID );
if ( smartCardSession instanceof MyCryptoSmartCardSession ) {
MyCryptoSmartCardSession mySmartCardSession = ( MyCryptoSmartCardSession
)smartCardSession;
// We must provide the user authentication since we returned true from
//providesUserAuthentication()
// Also, the smart card PIN is required for private key access.
mySmartCardSession.loginPrompt( accessReason, operation );
mySmartCardSession.signDecrypt( cryptoSystem, (MyCryptoTokenData)privateKeyData,
input, inputOffset, output, outputOffset );