Retrieve Public Key with CryptGetUserKey???

From: Eric (eric.h@netcourrier.com)
Date: 08/08/02 

From: "Eric" <eric.h@netcourrier.com>
Date: Thu, 8 Aug 2002 11:47:56 +0200

Hello,

I am currently creating a high level set of crypto functions based on the MS
CAPI.(not CAPICOM...)
I have generated a Machine Container, an Exchange Key Pair (that will also
be used for signature).
Now I want to generate a session key and store it on the disk as a KEY BLOB.
For my testing purpose I would like to encrypt and decrypt this session key
only using the key pair I have previously created.
I know that normally, I would use the receiver's public asym key to encrypt
the session key and then send it to him so that he can decrypt it using his
private asym key.
As I understand, this(getting the receiver's pubilc key) can be done using
CryptImportKey but in my example I would only like to use my own key pair.

My question is, is there a way, using CryptGetUserKey (or another API
function) to get a handle to the Public Exchange Key and not the private
one?

Maybe I'm wrong but it seems like whether you specify AT_EXCHANGE or
AT_SIGNATURE, the handle that is retreived is corresponding to the private
key...

Thanks
Eric

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