BouncyCastle for ecnryption and signature?

Hello,

This may be a stupid question, but I?m running out of ideas. In the Eclipse
Plug-In I developed for XML-Security, signing works fine but encrypting ends
with a ?Cannot find any provider supporting xxx? (AESwrap for example)
exception. Because of the working signature stuff, I asked myself, whether
signing with the Apache API needs the BouncyCastle jar file
(bc-jce-jdk13-122.jar) at all. Or is the bc-jce-jdk13-122.jar file only
needed for encryption/decryption and signing works without it? Can somebody
please answer this? This may be the hint I need for my problem.

Second question:
The encrypting example (Encrypter.java) generates two keys for encrypting
data and the key. Is it possible to use a Java KeyStore for that like in the
signature example? Where can I find an example for that?

(Sorry if this mail comes twice. Problems with the mailserver.)

Thanks a lot for your help. Dominik

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