/// <summary>
/// Creates a SimpleRSADigitalSigner based on the path of the X509 Cert, password, and hashing algorithm.
/// </summary>
/// <param name="path">
/// The file path of the cert.
/// </param>
/// <param name="password">
/// The password required to open the X509 Cert.
/// </param>
/// <param name="hashAlgorithm">
/// A supported requested hashing algorithm, defaulting to MD5 if none is passed.
/// </param>
public SimpleRSADigitalSigner(string path, string password, SimplerHasher.HashType hashAlgorithm = SimplerHasher.HashType.MD5)
: this(hashAlgorithm)
{
if (string.IsNullOrEmpty(path))
{
throw new ArgumentNullException("path");
}
this.Certificate = new X509Certificate2(path, password, X509KeyStorageFlags.MachineKeySet | X509KeyStorageFlags.PersistKeySet | X509KeyStorageFlags.Exportable);
//Retrieve the public and private RSA keys early.
//Even though this is stored in the cert, let's kept the logic simple and assign these properites when we have either key.
this.PrivateKey = Certificate.PrivateKey as RSACryptoServiceProvider;
this.PublicKey = Certificate.PublicKey.Key as RSACryptoServiceProvider;
if (this.PrivateKey == null)
{
throw new InvalidCastException("The certificate's private key is not RSA based.");
}
if (this.PublicKey == null)
{
throw new InvalidCastException("The certificate's public key is not RSA based.");
}
}
/// <summary>
/// Creates a SimpleRSADigitalSigner based on the hashing algorithm. They PublicKey and PrivateKey properties must be set manually.
/// </summary>
/// <param name="hashAlgorithm">
/// A supported requested hashing algorithm, defaulting to MD5 if none is passed.
/// </param>
public SimpleRSADigitalSigner(SimplerHasher.HashType hashAlgorithm = SimplerHasher.HashType.MD5, bool fOAEP = true)
{
this.HashAlgorithm = hashAlgorithm;
this.fOAEP = fOAEP;
}
