Java Development

[division_bell]

Hi everyone!

I need help, I'm implementing RSACryptoToken, and I've faced the issue, connected with 

decryptRSA and signRSA. According to the documentation, they need to perform raw RSA decrypting and signing.

Does BB provides such API, and how to implement this? Maybe there are any examples.

Thanks in advance

[streak81]

//here is how you would use RSA to sign data:

byte[] dataBytes = [bytes of data to sign];

PKCS1SignatureSigner signer = (PKCS1SignatureSigner) SignatureSignerFactory.getInstance([RSA Private Key], "RSA_PKCS1_V15/SHA1");

signer.update(dataBytes, 0, dataBytes.length);
byte[] signatureBytes = new byte[signer.getLength()];
signer.sign(signatureBytes, 0);

//...and to decrypt using RSA...

ByteArrayInputStream inputStream = new ByteArrayInputStream([encrypted bytes]);
BlockDecryptor decryptor = new BlockDecryptor(new PKCS1UnformatterEngine(new RSADecryptorEngine([RSA Private Key])), inputStream);
byte[] decrypted = IOUtilities.streamToBytes(decryptor);

Take a look at the net.rim.device.api.crypto libraries

[division_bell]

Thanks for reply!

But it still doesn't help me.

I sign S/MIME message with RSACryptoToken method signRSA, and after signing I get a message from S/MIME:

"Verification failed: invalid signature"

[anditsung]

you need to ask rim about signature for RSA.

[division_bell]

Thanks for the answer. But how can I ask RIM about it? 

Is there any way to send them an ask??