Hi David,

When I complied KeyTransEnvelopedDataExample, I got the following compiling error. Thanks!

KeyTransEnvelopedDataExample.java:46:error: RecipientId is abstract; cannot be instantiated
RecipientId recId = new RecipientId();

Okay, the CMS API changed a bit in 1.46 - I think KeyTransRecipientId is the class you want. It would be worth looking at the new API, it's more flexible and it makes some things a lot easier.

Regards,

David

Hi David,

Based on your suggesion, I tried to modify the code for "RecipientId recId = new RecipientId();" using KeyTransRecipientId

I used he following three versions. However, the compiler still complains that no suitable constructor is found. How can I find right argument for KeyTransRecipientId constructor?

thanks

KeyTransRecipientId recId = new KeyTransRecipientId(cert.getPublicKey());

KeyTransRecipientId recId = new KeyTransRecipientId(cert.getIssuerX500Principal(). getName(), cert.getSerialNumber());

KeyTransRecipientId recId = new KeyTransRecipientId(cert.getIssuerX500Principal(). getEncoded(), cert.getSerialNumber());

You can take a lead from the set() calls on the old object. In this case the best one to use is JceKeyTransRecipientId and just pass it the certificate.

Regards,

David