static RSA CreateRSAByXmlKey(Stream key_xml)
{
var rsa = RSA.Create();
rsa.ImportParameters(RSAHelper.DeserializeRSAParameters(key_xml));
return(rsa);
}
static RSA CreateRSAByStringKey(string?publicKey_str, string?privateKey_str)
{
if (string.IsNullOrWhiteSpace(publicKey_str) && string.IsNullOrWhiteSpace(privateKey_str))
{
throw new ArgumentException("No keys.");
}
var rsa = RSA.Create();
if (!string.IsNullOrEmpty(publicKey_str))
{
var publicKey_bytes = RSAHelper.DeserializeRSAKey(publicKey_str);
rsa.ImportRSAPublicKey(new ReadOnlySpan <byte>(publicKey_bytes), out _);
}
if (!string.IsNullOrEmpty(privateKey_str))
{
var privateKey_bytes = RSAHelper.DeserializeRSAKey(privateKey_str);
rsa.ImportRSAPrivateKey(new ReadOnlySpan <byte>(privateKey_bytes), out _);
}
return(rsa);
}