Hi,

I have a certificate and it's private key.

I'm accessing my certificate and my private key using the X509Certificate2.

My problem is: I can't pass to the RsaCryptoServiceProvider class my Private
and Public key. How can i do it ?

Thanks in advance,

Victor

The X509Certificate2.PublicKey.Key property will give you an
RSACryptoServiceProvider for that certificate and the
X509Certificate.PrivateKey property will give you an AsymmetricAlgorithm
class you can use.

Joe K.

--
Joe Kaplan-MS MVP Directory Services Programming
Co-author of "The .NET Developer's Guide to Directory Services Programming"
http://www.directoryprogramming.net
--
"Victor Pereira" <pelasaco (AT) gmail (DOT) com> wrote

Hi Joe,

Ok thanks for your reply.

I think that i didn't explained very clearly my problem.

I don't know how can i get these properties and populate the
RsaCryptoServiceProvider structure to call the method Encrypt with my
private key. Understood ?

Thanks again,

Victor
"Joe Kaplan" <joseph.e.kaplan (AT) removethis (DOT) accenture.com> escreveu na mensagem
news:emermwKUHHA.528 (AT) TK2MSFTNGP03 (DOT) phx.gbl...

are you sure you really wanna use the raw RSA key - or rather use the higher
level PKCS classes to encrypt the data?

Have a look at this article:
http://msdn.microsoft.com/msdnmag/is...y/default.aspx


-----
Dominick Baier (http://www.leastprivilege.com)

Developing More Secure Microsoft ASP.NET 2.0 Applications (http://www.microsoft.com/mspress/books/9989.asp)

Guys,
How about this approach("cert" is X509Certificate2)?

RSACryptoServiceProvider rsa_pub =
(RSACryptoServiceProvider)cert.PublicKey.Key;
or
RSACryptoServiceProvider rsa_prv = (RSACryptoServiceProvider)cert.PrivateKey;

Smorn

"Victor Pereira" wrote: