Modify public key only in the key container

From: Phoebe (Phoebe_at_discussions.microsoft.com)
Date: 02/28/05 

Date: Mon, 28 Feb 2005 03:55:04 -0800

I am writing a custom CSP. My private key is stored in another computer. I
have the public key. I want to modify the public key persistently in a key
container to be my public key, I don't care about the private key as I don't
use it. Here is what I did:

1. create a key pair in a key container using CPGenKey. Set the flag
CRYPT_EXPORTABLE
2. export PRIVATEKEYBLOB using CPExportKey
3. modify the public key modulus/exponent to be my public key 's
modulus/exponent.
4. Import the PRIVATEKEYBLOB back into my key conainter. I got the error msg
 80090005(BAD DATA)

Can someone help me that? or Is it possible to do it?

Thank you

Phoebe

Relevant Pages

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  • CryptImportKey NTE_BAD_KEY error.
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    (microsoft.public.platformsdk.security)