[Mono-list] cryptografy with Mono - works with DOTNET, fails with MONO

diegocairone diego_cai at hotmail.com
Thu Mar 3 11:24:01 EST 2011

I have a problem running this code under Mono. The same code works OK under
DOTNET. What can I do? 

X509Certificate2 crt = new X509Certificate2();

byte[] crtBytes = [ certificate in the format PKCS12 (certificate + private
key) obtained using FileStream class]

crt.Import(crtBytes, "123456", X509KeyStorageFlags.DefaultKeySet);

Encoding msgCodificado = Encoding.UTF8;
byte[] msgBytes = msgCodificado.GetBytes(xmlTRA.OuterXml); //
xmlTRA.OuterXml is the data to sign

ContentInfo pkcsContentInfo = new ContentInfo(msgBytes);
SignedCms cms = new SignedCms(pkcsContentInfo);
CmsSigner firmante = new CmsSigner(crt);

firmante.IncludeOption = X509IncludeOption.EndCertOnly;
cms.ComputeSignature(firmante); // ---> throw an cryptografy exception with

byte[] firma = cms.Encode();
firmaB64 = Convert.ToBase64String(firma);

I am using using:
using System.Security.Cryptography;
using System.Security.Cryptography.Pkcs;
using System.Security.Cryptography.X509Certificates;

What can I do?

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