Re: Exporting key without encryption

The problems in the other thread are solved. Some others that showed up later
are also solved.
The only remaining problem is the exporting of an AES key without any
encryption.

Any ideas on that ?
I could generate a random buffer the size of an AES key but that would only
change the problem of exporting the key to importing it, so that would not
solve the problem.

Any thoughts ?

Jacques


JexMcByte wrote:
> 
> Is it possible to export a key (AES-256) without any encryption ?
> 
> cryptExport asks for a context containing a key to encrypt the exported
> key. I've tryed CRYPT_UNUSED, NULL, empty context but none of those
> worked.
> 
> Is it possible or do we have a workaround to it ?
> 
> I really need the plain key.
> 
> For another task I'll need to export this key encrypted by a public key
> (RSA), but the key I'm getting with
> 
> res = cryptGetPublicKey( cryptDevice, &devicePubKey, CRYPT_KEYID_NAME,
> label );
> 
> I'm not being able to get it inside a context so I can use the context to
> export the AES key I mentioned, I'll also need to include the private RSA
> key later to import this encrypted AES key.
> 
> Maybe this (encrypted exporting/importing) will be solved when I have my
> previous post problem solved.
> 
> Jacques
> 

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