Problem with private key

[Denis M. <dm...@ta...>]

Hi,

I've tried to use the Keychain Framework (very well done) to encrypt/=20
decrypt data with RSA algorithm. But I need some help. My keychain =20
currently contains my certificate and my private key

To encrypt data : I fetch the current Keychain, Identity, I get the =20
public key and I call the method
-encryptedDataUsingKey:mode:padding
=3D> no problem

But to decrypt the data, I want to fetch the private key associated =20
with the identity. Thus I call privateKey on my Identity. It seems to =20=

work but when I call with the private key
decryptedDataUsingKey:mode:padding:
I've got the following exception :

2005-11-23 10:47:52.682 testapp[15965] Unable to decrypt data because =20=

of error #2147551505 - CSP invalid key reference - The CSSM_KEY =20
contains a reference that does not indicate a key in the CSP.

Here is the desciption of my key :

2005-11-23 10:47:52.635 testapp[15965] Private Key : Format: Integer =20
(e.g. handle)
Blob Format: Wrapped
Algorithm: 42
Wrap Algorithm: 0
Class: Private key
Logical Size: 2048
Attributes: Permanent, Sensitive, Always sensitive, Extractable
Usage: Encrypt, Decrypt, Sign, Verify, Sign Recovery, Verify =20
Recovery, Wrap, Unwrap, Derive, Any
Start Date: (null)
End Date: (null)
Wrap Mode: None

Can someone help me ?


Thanks






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Denis Muquardt

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TAKTIK - www.taktik.be
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