private static SymmetricAlgorithm GetSymmetricAlgorithm(string algorithmType)
{
SymmetricAlgorithm sa = null;
try
{
Type type = Type.GetType(algorithmType, true);
sa = Activator.CreateInstance(type) as SymmetricAlgorithm;
}
catch (Exception ex)
{
// We want to supress any type of exception here for security reasons.
CryptographyUtility.LogCryptographyException(ex);
throw new CryptographicException(SR.ExceptionCreatingSymmetricAlgorithmInstance);
}
if (sa == null)
{
throw new CryptographicException(SR.ExceptionCastingSymmetricAlgorithmInstance);
}
return(sa);
}
