Hello,

I just wanted to sign some hashes.
So I came quickly to www.bouncycastle.org . The classes from
bouncycastle offer to generate keys, encrypt or sign data and verify the
result against the keypair. => fine

Unfortunatly there is no manual or tutorial or something like that. The
examples from BC-source I can not connect in my mind ...

what I wanna do:
1. generate keys
2. save keys to file(s)
3. read key from file(s)
4. sign hash
5. verify hash
6. generate certificate
7. verify certificate

Can someone help to solve my problem?
Or do you know some good tutorials that explain the usage of bouncycastle?

<code>

Security.addProvider(new BouncyCastleProvider());
KeyPairGenerator generator = KeyPairGenerator.getInstance(
        Constants.SEC_DEFAULT_ALGORITHM);
generator.initialize(Constants.SEC_DEFAULT_STRENGTH);
KeyPair keyPair    = generator.generateKeyPair();
PrivateKey prik    = keyPair.getPrivate();
PublicKey pubk     = keyPair.getPublic();

</code>

with this lines i created a keypair, but i have no idea how to save it
to a file (or into 2 files)

Thank you for any help
Matthias