user3357141 February 2016
Getting PrivateKey null X509Certificate2 c#
It is a console application and I'm using .net framework 4.
When I try to get the private key from the certificate I get it as null any idea why is this happening?
string text = "some text"
SHA1 sha1 = SHA1CryptoServiceProvider.Create();
Byte textToBytes = //ASCIIEncoding.Default.GetBytes(texto);
Byte hash = sha1.ComputeHash(textToBytes);
//Path to the certificate file.
string sFile = @"C:\myCer.cer";
//Get the bytes array.
byte byteCer = File.ReadAllBytes(sFile);
//Create the certificate with bytes and the password.
X509Certificate2 myCert2 = new X509Certificate2(byteCer, "Password", X509KeyStorageFlags.MachineKeySet);
byte Encrypted = rsa1.Encrypt(hash, true);
string cypherText = Convert.ToBase64String(Encrypted);
RSACryptoServiceProvider RSA = (RSACryptoServiceProvider)myCert2.PrivateKey;//I get the privateKey as null.
RSAPKCS1SignatureFormatter RSAFormatter = new RSAPKCS1SignatureFormatter(RSA);
byte SignedHashValue = RSAFormatter.CreateSignature(hash);
Asked in February 2016
Viewed 1,700 times Voted 13 Answered 1 times
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