internal static HashAlgorithm ObjToHashAlgorithm(object hashAlg)
{
if (hashAlg == null)
{
throw new ArgumentNullException("hashAlg");
}
HashAlgorithm algorithm = null;
if (hashAlg is string)
{
algorithm = (HashAlgorithm)CryptoConfig.CreateFromName((string)hashAlg);
if (algorithm == null)
{
string name = X509Utils._GetFriendlyNameFromOid((string)hashAlg);
if (name != null)
{
algorithm = (HashAlgorithm)CryptoConfig.CreateFromName(name);
}
}
}
else if (hashAlg is HashAlgorithm)
{
algorithm = (HashAlgorithm)hashAlg;
}
else if (hashAlg is Type)
{
algorithm = (HashAlgorithm)CryptoConfig.CreateFromName(hashAlg.ToString());
}
if (algorithm == null)
{
throw new ArgumentException(Environment.GetResourceString("Argument_InvalidValue"));
}
return(algorithm);
}
